Keysight Technologies W4630 Series Installation Manual
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Keysight Technologies W4630 Series Installation Manual

Keysight Technologies W4630 Series Installation Manual

Ddr4 bga interposers
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Keysight W4630 and W4640
Series DDR4 BGA
Interposers
Installation Guide

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Summary of Contents for Keysight Technologies W4630 Series

  • Page 1 Keysight W4630 and W4640 Series DDR4 BGA Interposers Installation Guide...
  • Page 2 Notices Technology Licenses Safety Notices © Keysight Technologies 2015 The hardware and/or software described in No part of this manual may be reproduced in this document are furnished under a license any form or by any means (including elec- CAUTION...

  • Page 3: In This Guide

    In This Guide This guide provides installation and usage information for the following Keysight DDR4 BGA interposers and the cables used with these interposers. W4630-series DDR4 DRAM BGA Interposers and cables • W4633A DDR4 x4/x8 BGA Command and Data Interposer •...
  • Page 4 Keysight W4630 and W4640 Series DDR4 DRAM BGA Interposers Installation Guide...

  • Page 5: Table Of Contents

    Contents In This Guide 1 Introduction to W4630-Series Interposers W4630 Series DDR4 BGA Interposers - An Overview Compatibility with Logic Analyzer Modules W4633A DDR4 x4/x8 BGA Interposer W4633A Technical Features Summary W4633A Riser and Optional Grypper Socket W4631A DDR4 x16 BGA Interposer...
  • Page 6 Contents W4641A DDR4 x16 BGA 2-Wings Interposer W4641A Technical Features Summary W4641A Riser and Optional Grypper Socket U4208A 61-pin ZIF Probe / Cable (for Left Wing) U4209A 61-pin ZIF Probe / Cable (for Right Wing) Hard ware and Software Requirements Mechanical Considerations W4643A Interposer Dimensions W4643A Riser Dimensions...
  • Page 7 Contents Connecting the E5849A Probe Cables to a Logic Analyzer E5849A Cables to Logic Analyzer Pods Connection Mapping (for < 2.5 Gb/s Data Rates) DDR4 x16 ZIF Cable to Logic Analyzer Pods Connection Mapping (for < and > 2.5 Gb/s Data Rates) Logic Analyzer Channel Mapping Signals not probed by the Logic Analyzer...
  • Page 8 Contents Load ing a Configuration File To save a configuration file 10 Characteristics, Regulatory, Safety and Storage Information Operating Characteristics Storage, Inspection, Baking, and Cleaning Guidelines Guidelines for Shelf Life and Solder-ability of W4630-series and W4640-series Interposers Cleaning of W4630-series and W4640-series Interposer Gold Fingers Safety Information for the E5849A and E5847A Cable Adapters To clean the instrument Safety Symbols...

  • Page 9: Introduction To W4630-Series Interposers

    Installation Guide Introduction to W4630-Series Interposers W4630 Series DDR4 BGA Interposers - An Overview / 10 W4633A DDR4 x4/x8 BGA Interposer / 11 W4631A DDR4 x16 BGA Interposer / 13 W4636A DDR4 x16 KOV BGA 2-Wings Command and Reduced Data Interposer / 15...

  • Page 10: W4630 Series Ddr4 Bga Interposers - An Overview

    DRAM would normally be soldered. The interposer is designed to be soldered to the PCB footprint for the DRAM on top of either the DDR4 riser included with the W4630 series BGA interposer or an optional Grypper socket (not included with the interposer) or both. The DRAM being probed is then soldered to the top side of the interposer.

  • Page 11: W4633A Ddr4 X4/X8 Bga Interposer

    Introduction W4633A DDR4 x4/x8 BGA Interposer The W4633A interposer has three flexible wings, each with a set of fingers for Zero Insertion Force (ZIF) connections that connect it to the E5849A single-ended ZIF probe adapter cables. These E5849A cables are then connected to the Logic Analyzer module’s pods via U4201A logic analyzer cables.

  • Page 12: W4633A Riser And Optional Grypper Socket

    Introduction W4633A Riser and Optional Grypper Socket A DDR4 78 ball riser is provided with each W4633A interposer to provide clearance for bottom-side RC components on the interposer and to allow the interposer to clear surrounding devices. Optionally, you can use a Grypper socket. It is not provided with the interposer. The following figure displays a riser that is provided with the W4633A interposer.

  • Page 13: W4631A Ddr4 X16 Bga Interposer

    Introduction W4631A DDR4 x16 BGA Interposer The W4631A interposer has four flexible wings, each with a set of fingers for Zero Insertion Force (ZIF) connections that connect it to the right or left wing of the E5849A single-ended ZIF probe adapter cables.

  • Page 14: W4631A Riser And Optional Grypper Socket

    Introduction W4631A Riser and Optional Grypper Socket A DDR4 96 ball riser is provided with each W4631A interposer to provide clearance for bottom-side RC components on the interposer and to allow the interposer to clear surrounding devices. Optionally, you can use a Grypper socket. It is not provided with the interposer. The following figure displays the riser that is provided with the W4631A interposer.

  • Page 15: W4636A Ddr4 X16 Kov Bga 2-Wings Command And Reduced Data Interposer

    Introduction W4636A DDR4 x16 KOV BGA 2-Wings Command and Reduced Data Interposer The W4636A interposer probes a 96-balls DDR4 DRAM. When compared to the W4631A x16 interposer, W4636A offers two wings with limited signal access, reduced data rates, and a smaller KOV.

  • Page 16: W4636A Technical Features Summary

    Introduction W4636A Technical Features Summary • Probes a 96 ball DDR4 single channel x16 DRAM chip. Maximum of 12.5 mm x 19 mm DDR4 DRAM package can fit on top of the W4636A interposer. • No RC components network on the W4636A interposer: •...

  • Page 17: E5849A Single-Ended Zif Probe Cable

    Introduction E5849A Single-ended ZIF Probe Cable Two E5849A probe cables are required to connect a W4631A / W4633A interposer to a Logic Analyzer module using U4201A logic analyzer cables. Three pods to connect to the U4201 Logic Analyzer cables Right and left wings to connect to the bottom side of the W4631A / W4633A interposer wings Figure 6...

  • Page 18: E5847A Single-Ended Zif Probe Cable

    Introduction E5847A Single-ended ZIF Probe Cable One E5847A probe cable is required to connect a W4636A interposer to a Logic Analyzer module using U4201A logic analyzer cables. Right and left wings to Three pods to connect to the W4636A connect to the U4201 interposer wings Logic Analyzer cables Figure 7...

  • Page 19: U4201A 90-Pin Logic Analyzer Cables

    Introduction U4201A 90-pin Logic Analyzer Cables The U4201A logic analyzer cable connects a E5849A or E5847A probe cable to a pod of the U4154A/B AXIe-based logic analyzer module. Connects to a pod of the E5849A or E5847A ZIF probe cable Connects to one of the pods of a Logic Analyzer module Figure 8...

  • Page 20: Hardware And Software Requirements

    Introduction Hardware and Software Requirements Before you start installing the W4630-series probes, ensure that you have the following list of hardware and software components needed for these probes. Hard ware Requirements U4154A /B AXIe-based Logic Analyzer Module(s) M9502A 2-slot or M9505A 5-slot AXIe chassis to install the U4154A module(s) M9536A embedded controller or host PC with PCI express adapter card for the chassis W4630A Series DDR4 BGA Interposer(s) E5849A 46-ch single-ended ZIF probe cables to connect the W4631A or W4633A interposer to U4201A Logic Analyzer cables...
  • Page 21 Introduction DRAM Data Wid th Access to Number of Number of ZIF Number of Number of Logic Interposers Probes Cables Analyzer Modules Command, Address, Control One W4633A Two E5849A Four U4201A One U4154A/B module and Data Four U4201A One U4154A/B module for data rates up to and including 2.5 Gb/s Two E5849A...

  • Page 22: Mechanical Considerations

    Introduction Mechanical Considerations W4633A Interposer Dimensions The following figure shows the dimensions of a W4633A DDR4 DRAM BGA interposer. Figure 9 Dimensions of a W4633A interposer Keysight W4630 and W4640 Series DDR4 DRAM BGA Interposers Installation Guide...

  • Page 23: W4633A Keep-Out Volume

    Introduction Figure 10 Dimensions of a W4633A interposer’s signal finger W4633A Keep-Out Volume You must install the W4633A interposer on a riser (shipped with the interposer) or a grypper NOTE socket to provide clearance to surrounding DRAM and RCs on the bottom side of the interposer.
  • Page 24 Introduction Figure 11 KOV of a W4633A interposer The following figure shows the KOV of an E5849A probe cable when connected to a W4633A interposer. Keysight W4630 and W4640 Series DDR4 DRAM BGA Interposers Installation Guide...
  • Page 25 Introduction Figure 12 KOV of a W4633A interposer with an E5849A cable (SIDE VIEW) Keysight W4630 and W4640 Series DDR4 DRAM BGA Interposers Installation Guide...

  • Page 26: W4631A Interposer Dimensions

    Introduction W4631A Interposer Dimensions The following figure shows the dimensions of a W4631A DDR4 DRAM BGA interposer. 76.2 mm 25.5 mm 20.8 mm 69.9 mm Figure 13 Dimensions of a W4631A interposer (TOP VIEW) W4631A Keep-Out Volume You must install the W4631A interposer on a riser (shipped with the interposer) or a grypper NOTE socket to provide clearance to surrounding DRAM and RCs on the bottom side of the interposer.
  • Page 27 Introduction 31.4 mm R 2.5 mm Minimum Bend Radius on Flex Wings Maximum 27.8 mm Bend Currently Shown 3.0 mm (with Riser and Socket) If Socket Only - 1.2 mm If Riser Only - 0.8 mm User Board Riser Board Height Restrictions “A”...

  • Page 28: W4636A Interposer Dimensions

    Introduction W4636A Interposer Dimensions The following figure shows the dimensions of a W4636A DDR4 DRAM BGA interposer. All dimensions are in millimeters. Figure 16 Dimensions of a W4636A interposer (TOP VIEW) W4636A Keep-Out Volume The following figure shows the KOV of an E5847A probe cable when connected to a W4636A interposer.
  • Page 29 Introduction Figure 17 KOV of a W4636A interposer with an E5847A cable Keysight W4630 and W4640 Series DDR4 DRAM BGA Interposers Installation Guide...
  • Page 30 Introduction Keysight W4630 and W4640 Series DDR4 DRAM BGA Interposers Installation Guide...

  • Page 31: Introduction To W4640-Series Interposers

    Keysight W4630 and W4640 Series DDR4 BGA Interposers Installation Guide Introduction to W4640-Series Interposers W4640-Series DDR4 BGA Interposers - An Overview / 32 W4643A DDR4 x4/x8 BGA 2-Wings Interposer / 33 W4641A DDR4 x16 BGA 2-Wings Interposer / 35 U4208A 61-pin ZIF Probe / Cable (for Left Wing) / 37 U4209A 61-pin ZIF Probe / Cable (for Right Wing) / 38 Hardware and Software Requirements / 39 Mechanical Considerations / 41...

  • Page 32: W4640-Series Ddr4 Bga Interposers - An Overview

    Introduction W4640-Series DDR4 BGA Interposers - An Overview The W4640-series DDR4 DRAM BGA Interposers enable probing of embedded DDR4 DRAM (x4, x8, and x16) directly at the ball grid array using the Keysight U4164A logic analyzer. These interposers provide you: •...

  • Page 33: W4643A Ddr4 X4/X8 Bga 2-Wings Interposer

    Introduction W4643A DDR4 x4/x8 BGA 2-Wings Interposer The W4643A interposer probes a 78-ball x4/x8 DDR4 DRAM. This interposer is optimized to work with the U4164A logic Analyzer module to achieve higher data rates with smaller KOV as compared to the W4630-series interposers. This interposer effectively utilizes the single touch probing and quad sampling features of the U4164A logic analyzer module thereby allowing you to probe DDR4 DQ signals above 2.5Gb/s without double probe load.

  • Page 34: W4643A Riser And Optional Grypper Socket

    Introduction W4643A Riser and Optional Grypper Socket A DDR4 78 ball riser is provided with each W4643A interposer to allow the interposer to clear surrounding devices. Optionally, you can use a Grypper socket. It is not provided with the interposer. The following figure displays a riser that is provided with the W4643A interposer.

  • Page 35: W4641A Ddr4 X16 Bga 2-Wings Interposer

    Introduction W4641A DDR4 x16 BGA 2-Wings Interposer The W4641A interposer probes a 96-ball x16 DDR4 DRAM. This interposer is optimized to work with the U4164A logic Analyzer module to achieve higher data rates with smaller KOV as compared to the W4630-series interposers.

  • Page 36: W4641A Riser And Optional Grypper Socket

    Introduction W4641A Riser and Optional Grypper Socket A DDR4 96 ball riser is provided with each W4641A interposer to allow the interposer to clear surrounding devices. Optionally, you can use a Grypper socket. The following figure displays the riser that is provided with the W4641A interposer. Pin 1 marking Figure 21 Riser that accompanies the W4641A interposer...

  • Page 37: U4208A 61-Pin Zif Probe / Cable (For Left Wing)

    Introduction U4208A 61-pin ZIF Probe / Cable (for Left Wing) One U4208A probe cable is required to connect a W4641A or a W4643A interposer’s left wing to a U4164A Logic Analyzer module. Two pods to connect to the Logic Analyzer pods Connector to connect to the left flex wing of the W4641A / W4643A interposer...

  • Page 38: U4209A 61-Pin Zif Probe / Cable (For Right Wing)

    Introduction U4209A 61-pin ZIF Probe / Cable (for Right Wing) One U4209A probe cable is required to connect a W4641A or a W4643A interposer’s right wing to a U4164A Logic Analyzer module. Two pods to connect to the Logic Analyzer pods Connector to connect to the right flex wing of the W4641A / W4643A interposer...

  • Page 39: Hardware And Software Requirements

    Introduction Hardware and Software Requirements Before you start installing the W4640-series probes, ensure that you have the following list of hardware and software components needed for these probes. Hard ware Requirements U4164A AXIe-based Logic Analyzer Module M9502A 2-slot or M9505A 5-slot AXIe chassis to install the U4144A module M9536A embedded controller or host PC with PCI express adapter card for the chassis W4640A Series DDR4 BGA Interposer(s) U4208A 61-pin ZIF probe cables to connect the W4641A or W4643A interposer to Logic Analyzer module...
  • Page 40 Introduction DRAM Data Wid th Access to Number of Interposers Number of ZIF Probes Number of Logic Analyzer Modules Command, Address, Control and One W4643A One U4208A for the One U4164A module Data left wing One U4209A for the right wing Command, Address, Control and One W4641A One U4208A for the...

  • Page 41: Mechanical Considerations

    Introduction Mechanical Considerations W4643A Interposer Dimensions The following figure shows the dimensions of a W4643A interposer. Figure 24 Dimensions of a W4643A interposer (TOP VIEW) W4643A Riser Dimensions All dimensions are in millimeters. Keysight W4630 and W4640 Series DDR4 DRAM BGA Interposers Installation Guide...

  • Page 42: W4643A Keep-Out Volume

    Introduction W4643A Keep-Out Volume You must install the W4643A interposer on a riser (shipped with the interposer) or a grypper NOTE socket to provide clearance to surrounding DRAM. Keysight W4630 and W4640 Series DDR4 DRAM BGA Interposers Installation Guide...
  • Page 43 Introduction Figure 25 KOV of a W4643A interposer Keysight W4630 and W4640 Series DDR4 DRAM BGA Interposers Installation Guide...

  • Page 44: W4641A Interposer Dimensions

    Introduction W4641A Interposer Dimensions The following figure shows the dimensions of a W4641A interposer. Figure 26 Dimensions of a W4641A interposer (TOP VIEW) W4641A Riser Dimensions All dimensions are in millimeters. Keysight W4630 and W4640 Series DDR4 DRAM BGA Interposers Installation Guide...

  • Page 45: W4641A Keep-Out Volume

    Introduction W4641A Keep-Out Volume You must install the W4641A interposer on a riser (shipped with the interposer) or a grypper NOTE socket to provide clearance to surrounding DRAM. Keysight W4630 and W4640 Series DDR4 DRAM BGA Interposers Installation Guide...
  • Page 46 Introduction Figure 27 KOV of a W4641A interposer Keysight W4630 and W4640 Series DDR4 DRAM BGA Interposers Installation Guide...

  • Page 47: W4630-Series And W4640-Series Interposers And Riser Soldering Guidelines

    BGA rework facilities. Information on BGA Rework Facilities Circuit Technology Center Haverhill, MA BGA Rework and Repair Services http://www.circuitrework.com/services/bga.shtml Keysight Technologies Adapter Rework http://www.circuitrework.com/features/671.shtml eTech Round Rock, TX www.eTech-WEB.com Singularity Electronic Systems Portsmouth, NH...
  • Page 48 Interposers and Riser Soldering Guidelines Recommended Read ing BGA Component Rework Procedures http://www.circuitrework.com/guides/9-0.shtml BGA Component Rework Process Flow http://www.circuitrework.com/guides/9-1-1.shtml BGA Component Rework Inspection http://www.circuitrework.com/guides/9-1-2.shtml BGA Component Rework Profile Development, Standard Method http://www.circuitrework.com/guides/9-2-1.shtml BGA Component Rework Profile Development, Smart Track Method http://www.circuitrework.com/guides/9-2-2.shtml BGA Component Rework, Eutectic Solder Ball http://www.circuitrework.com/guides/9-3-1.shtml...

  • Page 49: Recommended Soldering Guidelines

    Interposers and Riser Soldering Guidelines Recommended Soldering Guidelines These guidelines are intended for anyone who has decided to install the winged BGA interposers themselves, or would like to provide guidelines to their regular contract manufacturer. • The W4630-series and W4640-series interposers are assembled using lead free or leaded soldering processes.

  • Page 50: Soldering Steps

    Interposers and Riser Soldering Guidelines Soldering Steps These steps and guidelines apply only to the proper method of attaching BGA interposers to their target host boards. These do not attempt to provide instructions on how to attach BGA balls to the interposer, nor do these attempt to suggest a flux or a solder paste process.
  • Page 51 Interposers and Riser Soldering Guidelines https://tds.us.henkel.com/NA/UT/HNAUTTDS.nsf/web/7DA17BAB270FA76E882571870000D 6EE/$File/3609-EN.pdf b Apply solder paste to the top-side of interposer. c Position memory using an SRT (or equivalent) with vision system for manual placement. d Reflow per the prepared heating profile. Post Processing a Remove flux residue. b Remove any Kapton tape heat shielding and peelable mask material.

  • Page 52: Interposer Fabrication Notes

    Interposers and Riser Soldering Guidelines Interposer Fabrication Notes Operating Environment The W4630A-series and W4640-series interposers are constructed of polyimide material that supports solder attachment of the interposer using the higher temperatures required by a lead-free solder process. The coefficient of thermal expansion for the interposer is 55 ppm/degree C. When operating in a soldered-down environment over a wide range of temperatures, the expansion coefficient of the interposer, DRAM, and system being probed must be matched to avoid stress related failure of the solder connections between the Interposer and attached components.

  • Page 53: Setting Up The W4633A Interposer

    Keysight W4630 and W4640 Series DDR4 BGA Interposers Installation Guide Setting up the W4633A Inter- poser W4633A Interposer Setup - Overview / 54 Soldering the W4633A Interposer and Riser / 55 Connecting the W4633A Interposer to E5849A Probe Cables / 56 Connecting the E5849A Probe Cables to a Logic Analyzer / 60...

  • Page 54: W4633A Interposer Setup - Overview

    Setting up the W4633A Interposer W4633A Interposer Setup - Overview Solder the riser, interposer, and memory components. (See page Connect the interposer flex wings to E5849A probe cables. (See page Connect the E5849A probe cables to a U4154A Logic Analyzer module’s pods via U4201A logic analyzer cables.

  • Page 55: Soldering The W4633A Interposer And Riser

    Setting up the W4633A Interposer Soldering the W4633A Interposer and Riser The W4633A interposer needs to be attached to the DRAM PCB footprint on the design to be probed with either the riser soldered or an optional Grypper socket (not included with the interposer) installed in between the interposer and PC board.

  • Page 56: Connecting The W4633A Interposer To E5849A Probe Cables

    Setting up the W4633A Interposer Connecting the W4633A Interposer to E5849A Probe Cables After soldering the components or installing with a Grypper socket, you can start connecting the W4633A interposer to the E5849A probe cables. Please handle the interposer with care and ensure that the wings on the W4633A interposer are NOTE properly latched to the ZIF connectors on the E5849A probe cables.
  • Page 57 Setting up the W4633A Interposer ZIF connectors on the E5849A cable connect to the bottom side of the flex wings on the W4633A interposer. ZIF doors close on the ground side of the flex wings. The following picture displays a W4633A interposer with E5849A ZIF connectors attached to its flex wings.

  • Page 58: W4633A Interposer Wings Pinout

    Setting up the W4633A Interposer Shut the ZIF door. W4633A Interposer Wings Pinout The following table lists the pinout of the three wings of a W4633A interposer. Note: Clock inputs are highlighted with yellow in this table. Table 1 W4633A Interposer Wings Pinout W4633A Interposer Wings J1- DATA J2 - ADDRESS/COMMAND...
  • Page 59 Setting up the W4633A Interposer W4633A Interposer Wings J1- DATA J2 - ADDRESS/COMMAND J3 - ADDRESS/COMMAND DQ3_2 DQ3_1 DQ1_2 ACT# DQ1_1 DM#_2 DM#_1 DQS_2 DQS_1 E5849A Cable 1 E5849A Cable 1 E5849A Cable 2 Left Wing Connector Right Wing Connector Right Wing Connector Keysight W4630 and W4640 Series DDR4 DRAM BGA Interposers Installation Guide...

  • Page 60: Connecting The E5849A Probe Cables To A Logic Analyzer

    Setting up the W4633A Interposer Connecting the E5849A Probe Cables to a Logic Analyzer In a W4633A interposer setup, you make connections between an E5849A probe cable and a U4154A logic analyzer module by: • First connecting the E5849A probe cable to a U4201A cable. •...

  • Page 61: Signals Not Probed By The Logic Analyzer

    Setting up the W4633A Interposer These signals are automatically configured when you load one of the configuration files supplied with the Keysight B4621B decoder software. The following table lists the mapping between the Logic Analyzer channels and signals when connected to E5849A probe cables, Cable 1 and Cable 2. Note: Clock inputs are highlighted with yellow in this table.
  • Page 62 Setting up the W4633A Interposer Keysight W4630 and W4640 Series DDR4 DRAM BGA Interposers Installation Guide...

  • Page 63: Setting Up The W4631A Interposer

    Keysight W4630 and W4640 Series DDR4 BGA Interposers Installation Guide Setting up the W4631A Inter- poser W4631A Interposer Setup - Overview / 64 Mounting a W4631A Interposer on a PC Board using Riser and/or Sockets / 65 Connecting the W4631A Interposer to E5849A Probe Cables / 69 Connecting the E5849A Probe Cables to a Logic Analyzer / 73...

  • Page 64: W4631A Interposer Setup - Overview

    Setting up the W4631A Interposer W4631A Interposer Setup - Overview Solder the riser, interposer, sockets, and memory components. (See page Connect the interposer flex wings to E5849A probe cables. (See page Connect the E5849A probe cables to a U4154A/B Logic Analyzer module’s pods via U4201A logic analyzer cables.

  • Page 65: Mounting A W4631A Interposer On A Pc Board Using Riser And/Or Sockets

    Setting up the W4631A Interposer Mounting a W4631A Interposer on a PC Board using Riser and/or Sockets You can mount a W4631A interposer on a PC board using: • either the DDR4 riser shipped with the interposer, • or the HSIO Technologies Grypper Socket Model 96GRY7.5x13.1-0.80 (Part # 105526-0015) •...

  • Page 66: To Mount The W4631A Interposer On A Pc Board

    Setting up the W4631A Interposer To mount the W4631A interposer on a PC board Solder the socket to the top and the riser to the bottom of the W4631A interposer as per the soldering guidelines given on page 29. You may opt not to use a socket or a riser while mounting. If you opt not to use the riser, it will be difficult to determine the alignment of interposer and socket on PC board visually in the next steps.
  • Page 67 Setting up the W4631A Interposer While keeping this orientation, gently lower the Interposer set towards the socket on the PC board so that the interposer just touches the socket. Observe and correct the alignment of the Interposer with the Alignment Template so that the interposer is positioned centered over the socket on the PC board.
  • Page 68 Setting up the W4631A Interposer If the PC board area is too large to allow your fingers to reach from the edge NOTE of the board to the socket location, then you will need to provide support under the board to apply pressure on the top. Care must be taken to NOT flex the board.

  • Page 69: Connecting The W4631A Interposer To E5849A Probe Cables

    Setting up the W4631A Interposer Connecting the W4631A Interposer to E5849A Probe Cables After soldering the components or installing with Grypper socket(s), you can start connecting the W4631A interposer to the E5849A probe cables. When using a socket at the bottom of interposer, ensure that: CAUTION - While attaching the probe cables to the interposer, apply finger pressure to the top of the interposer so as not to dislodge the interposer from the socket on the PC board.
  • Page 70 Setting up the W4631A Interposer Figure 33 W4631A Interposer and E5849A Cable Connections ZIF connectors on the E5849A cable connect to the bottom side of the flex wings on the W4631A interposer. ZIF doors close on the ground side of the flex wings. The following picture displays a W4631A interposer with E5849A ZIF connectors attached to its flex wings.

  • Page 71: W4631A Interposer Wings Pinout

    Setting up the W4631A Interposer Figure 34 W4631A interposer attached to E5849A ZIF connectors To attach an E5849A ZIF connector to a flex wing of the W4631A interposer, perform the following three steps. Angle the flex wing of the interposer into an E5849A ZIF connector. GND towards door closure. Align the E5849A ZIF connector tabs with interposer’s wing notches.
  • Page 72 Setting up the W4631A Interposer Table 3 W4631A Interposer Wings Pinout W4631A Interposer Wings J1- DATA J2 - ADDRESS/DATA J3 - ADDRESS/COMMAND J4 -ADDRESS/DATA DQU6_1 DQU6_2 DQU0_1 DQU0_2 DQU2_1 DQU2_2 DQL6_1 DQL3_1 DQL6_2 DMU_1 DQL3_2 DQL2_1 DQL1_1 DQL2_2 DQL7_1 DQL1_2 DQL7_2 DML_1 DMU_2...

  • Page 73: Connecting The E5849A Probe Cables To A Logic Analyzer

    Setting up the W4631A Interposer Connecting the E5849A Probe Cables to a Logic Analyzer In a W4631A interposer setup, you make connections between an E5849A probe cable and a U4154A/B logic analyzer module by: • First connecting the E5849A probe cable to a U4201A cable. •...

  • Page 74: E5849A Cables To Logic Analyzer Pods Connection Mapping (For < 2.5 Gb/S Data Rates)

    Setting up the W4631A Interposer E5849A Cables to Logic Analyzer Pods Connection Mapping (for < 2.5 Gb/s Data Rates) This default configuration uses two E5849A cables and a single U4154A/B module. Logic Analyzer Pods E5849A Cable Pods Slot 1 Pod 1 Cable 2 Pod A Slot 1 Pod 2 Cable 1 Pod C...
  • Page 75 Setting up the W4631A Interposer Logic Analyzer Channel Mapping For a single-probed test setup for up to 2,500 Mbps operation Table 4 Signals and Logic Analyzer Channels Mapping for the E5849A Probe Cable - Low Speed Connection Scheme LA Channel E5849A Cable 1 Pods LA Channel E5849A Cable 2 Pods...
  • Page 76 Setting up the W4631A Interposer Logic Analyzer Channel Mapping For a Double Probing Test Setup for above 2,500 Mbps Operations For operations above 2,500 Mbps, or when different read and write thresholds are required, the High Speed connections must be used. In such situations, two U4154A/B modules are required for full probing of a single DDR4 x16 DRAM above 2,500 Mbps.

  • Page 77: Signals Not Probed By The Logic Analyzer

    Setting up the W4631A Interposer Signals not probed by the Logic Analyzer The following signals are omitted from the Logic Analyzer connections for the W4631A interposer. Signal Name Type Description VREFCA Power Supply Reference voltage for control, command, and address pins Input Connectivity test mode: LOW during normal operation Reference...
  • Page 78 Setting up the W4631A Interposer Keysight W4630 and W4640 Series DDR4 DRAM BGA Interposers Installation Guide...

  • Page 79: Setting Up The W4636A Interposer

    Keysight W4630 and W4640 Series DDR4 BGA Interposers Installation Guide Setting up the W4636A Inter- poser W4636A Interposer Setup - Overview / 80 Soldering the W4636A Interposer / 81 Connecting the W4636A Interposer to an E5847A Probe Cable / 82 Connecting the E5847A Probe Cable to a Logic Analyzer / 85...

  • Page 80: W4636A Interposer Setup - Overview

    Setting up the W4636A Interposer W4636A Interposer Setup - Overview Solder the interposer, socket (optional), and memory components. (See page Connect the interposer flex wings to an E5847A probe cable. (See page Connect the E5847A probe cable to a U4154A/B Logic Analyzer module’s pods via U4201A logic analyzer cables.

  • Page 81: Soldering The W4636A Interposer

    Setting up the W4636A Interposer Soldering the W4636A Interposer The W4636A interposer needs to be attached to the DRAM PCB footprint on the design to be probed. The desired DRAM is soldered to the top side of the interposer. This attachment may occur in any order (i.e.

  • Page 82: Connecting The W4636A Interposer To An E5847A Probe Cable

    Setting up the W4636A Interposer Connecting the W4636A Interposer to an E5847A Probe Cable After soldering components, you can start connecting the W4636A interposer to the E5847A probe cable. Please handle the interposer with care and ensure that the wings on the W4636A interposer CAUTION are properly latched to the ZIF connectors on the E5847A probe cable.

  • Page 83: W4636A Interposer Wings Pinout

    Setting up the W4636A Interposer Figure 38 W4636A interposer attached to E5847A ZIF connectors To attach an E5847A ZIF connector to a flex wing of the W4636A interposer, perform the following three steps. Angle the flex wing of the interposer into an E5847A ZIF connector. GND towards door closure. Align the E5847A ZIF connector tabs with interposer’s wing notches.
  • Page 84 Setting up the W4636A Interposer Table 6 W4636A Interposer Wings Pinout W4636A Interposer Wings DQU0 DQU2 DQU6 DQU4 ALERT_n DMU_n DQSL_c DQL0 CS_n RST_n CK_c ACT_n CK_t DQU7 DQU5 DQU3 DQU1 DQSU_c E5847A Cable E5847A Cable Left Wing Connector Right Wing Connector Keysight W4630 and W4640 Series DDR4 DRAM BGA Interposers Installation Guide...

  • Page 85: Connecting The E5847A Probe Cable To A Logic Analyzer

    Setting up the W4636A Interposer Connecting the E5847A Probe Cable to a Logic Analyzer In a W4636A interposer setup, you make connections between an E5847A probe cable and a U4154A/B logic analyzer module by: • First connecting the E5847A probe cable to a U4201A cable. •...

  • Page 86: Signals Not Probed By The Logic Analyzer

    Setting up the W4636A Interposer In the table below: • Clock inputs are highlighted with yellow. • Signals beginning with an "X" are unused signals. • Table cells marked with indicate pins that are not accessible with an E5847A cable. Table 7 Signals and Logic Analyzer Channels Mapping for the E5847A Probe Cable LA Channel...
  • Page 87 Setting up the W4636A Interposer Signal Name Type VREFCA Control and other signals group DQS0 Data signal group DQS1 DQS1# Keysight W4630 and W4640 Series DDR4 DRAM BGA Interposers Installation Guide...
  • Page 88 Setting up the W4636A Interposer Keysight W4630 and W4640 Series DDR4 DRAM BGA Interposers Installation Guide...

  • Page 89: Setting Up The W4643A Interposer

    Keysight W4630 and W4640 Series DDR4 BGA Interposers Installation Guide Setting up the W4643A Inter- poser W4643A Interposer Setup - Overview / 90 Soldering the W4643A Interposer and Riser / 91 Connecting the W4643A Interposer to U4208A and U4209A Probe Cables / 92 Connecting the U4208A and U4209A Probe Cables to a U4164A Logic Analyzer / 95...

  • Page 90: W4643A Interposer Setup - Overview

    Setting up the W4643A Interposer W4643A Interposer Setup - Overview Solder the riser, interposer, and memory components. (See page Connect the interposer flex wings to U4208A and U4209A probe cables. (See page Connect the U4208A and U4209A probe cables to a U4164A Logic Analyzer module’s pods. (See page Use ESD precautions.

  • Page 91: Soldering The W4643A Interposer And Riser

    Setting up the W4643A Interposer Soldering the W4643A Interposer and Riser The W4643A interposer needs to be attached to the DRAM PCB footprint on the design to be probed with either the riser soldered or an optional Grypper socket (not included with the interposer) installed in between the interposer and PC board.

  • Page 92: Connecting The W4643A Interposer To U4208A And U4209A Probe Cables

    Setting up the W4643A Interposer Connecting the W4643A Interposer to U4208A and U4209A Probe Cables After soldering the components or installing with a Grypper socket, you can start connecting the W4643A interposer to the U4208A and U4209A probe cables. Please handle the interposer with care and ensure that the wings on the W4643A interposer are NOTE properly latched to the ZIF connectors on the U4208A and U4209A probe cables.

  • Page 93: W4643A Interposer Wings Pinout

    Setting up the W4643A Interposer Figure 42 W4643A interposer attached to U4208A and U4209A ZIF connectors To attach a U4208A or a U4209A ZIF connector to a flex wing of the W4643A interposer, perform the following three steps. Angle the flex wing of the interposer into the probe cable’s ZIF connector. Align the probe cable’s ZIF connector tabs with interposer’s wing notches.
  • Page 94 Setting up the W4643A Interposer W4643A Interposer Wings Right Wing Left Wing CS_n ALERT_n CK_c CK_t ACT_n RST_n DQS_t DQS_c TDQS_c U4209A U4208A Keysight W4630 and W4640 Series DDR4 DRAM BGA Interposers Installation Guide...

  • Page 95: Connecting The U4208A And U4209A Probe Cables To A U4164A Logic Analyzer

    Setting up the W4643A Interposer Connecting the U4208A and U4209A Probe Cables to a U4164A Logic Analyzer In a W4643A interposer setup, you connect the U4208A and U4209A probe cable pods to U4164A logic analyzer pods as per the mapping shown in the table below. Probe Cable Pods U4164A Logic Analyzer Pods...

  • Page 96: Logic Analyzer Channels To Signals Mapping

    Setting up the W4643A Interposer Logic Analyzer Channels to Signals Mapping When you connect the U4208A and U4209A probe cables to a U4164A Logic Analyzer as per the connection diagram in Figure 43, the logic analyzer channels are mapped to DDR4 signals as per the table displayed below.

  • Page 97: Signals Not Probed By The Logic Analyzer

    Setting up the W4643A Interposer Logic Analyzer Pod Signals on Logic Analyzer Pod Signals on and its Channels U4209A probe and its Channels U4209A probe cable Pod A cable Pod B Pod 1 Pod 5 DBI_n (Signals (Signals can be can be dual-sampl quad-sampl...
  • Page 98 Setting up the W4643A Interposer Keysight W4630 and W4640 Series DDR4 DRAM BGA Interposers Installation Guide...

  • Page 99: Setting Up The W4641A Interposer

    Keysight W4630 and W4640 Series DDR4 BGA Interposers Installation Guide Setting up the W4641A Inter- poser W4641A Interposer Setup - Overview / 100 Soldering the W4641A Interposer / 101 Connecting the W4641A Interposer to U4208A and U4209A Probe Cables / 102 Connecting the U4208A and U4209A Probe Cables to a U4164A Logic Analyzer / 105...

  • Page 100: W4641A Interposer Setup - Overview

    Setting up the W4641A Interposer W4641A Interposer Setup - Overview Solder the interposer, socket (optional), and memory components. (See page 101) Connect the interposer flex wings to U4208A and U4209A probe cables. (See page 102) Connect the U4208A and U4209A probe cables to a U4164A Logic Analyzer module’s pods. (See page 105) Use ESD precautions.

  • Page 101: Soldering The W4641A Interposer

    Setting up the W4641A Interposer Soldering the W4641A Interposer The W4641A interposer needs to be attached to the DRAM PCB footprint on the design to be probed. The desired DRAM is soldered to the top side of the interposer. This attachment may occur in any order (i.e.

  • Page 102: Connecting The W4641A Interposer To U4208A And U4209A Probe Cables

    Setting up the W4641A Interposer Connecting the W4641A Interposer to U4208A and U4209A Probe Cables After soldering components, you can start connecting the W4641A interposer to the U4208A and U4209A probe cables. Please handle the interposer with care and ensure that the wings on the W4641A interposer CAUTION are properly latched to the ZIF connectors on the U4208A and U4209A probe cables.

  • Page 103: W4641A Interposer Wings Pinout

    Setting up the W4641A Interposer ZIF connectors on the U4208A/U4209A cable connect to the top side of the flex wings on the W4641A interposer. ZIF doors open on the top of the flex wings. The following picture displays a W4641A interposer with U4208A and U4209A ZIF connectors attached to its flex wings. Figure 46 W4641A interposer attached to U4208A and U4209A ZIF connectors To attach a U4208A or a U4209A ZIF connector to a flex wing of the W4641A interposer, perform the...
  • Page 104 Setting up the W4641A Interposer W4641A Interposer Wings Right Wing Left Wing DQL5 DQL7 DML_n DML_n CS_n ACT_n CK_c CK_t DQSL_t DMU_n ALERT_n DMU_n DQL6 DQL2 DQL4 DQU4 RST_n DQU6 DQU0 DQU2 DQL0 U4209A U4208A Keysight W4630 and W4640 Series DDR4 DRAM BGA Interposers Installation Guide...

  • Page 105: Connecting The U4208A And U4209A Probe Cables To A U4164A Logic Analyzer

    Setting up the W4641A Interposer Connecting the U4208A and U4209A Probe Cables to a U4164A Logic Analyzer In a W4641A interposer setup, you connect the U4208A and U4209A probe cable pods to U4164A logic analyzer pods as per the mapping shown in the table below. Probe Cable Pods U4164A Logic Analyzer Pods...

  • Page 106: Logic Analyzer Channels To Signals Mapping

    Setting up the W4641A Interposer Logic Analyzer Channels to Signals Mapping When you connect the U4208A and U4209A probe cables to a U4164A Logic Analyzer as per the connection diagram in Figure 47, the logic analyzer channels are mapped to DDR4 signals as per the table displayed below.

  • Page 107: Signals Not Probed By The Logic Analyzer

    Setting up the W4641A Interposer Logic Analyzer Pod Signals on Logic Analyzer Pod Signals on and its Channels U4209A probe and its Channels U4209A probe cable Pod A cable Pod B DQL7 DQL5 DQL3 DQU7 Pod 1 Pod 5 ALERT_n DQU5 (Signals (Signals...
  • Page 108 Setting up the W4641A Interposer Keysight W4630 and W4640 Series DDR4 DRAM BGA Interposers Installation Guide...

  • Page 109: Setting Up The Logic Analyzer For W4630-Series And W4640-Series Interposers

    Keysight W4630 Series and W4640 Series DDR4 DRAM BGA Interposers Installation Guide Setting Up the Logic Analyzer for W4630-Series and W4640-Series Interposers Before You Start / 110 Loading a Configuration File / 111...

  • Page 110: Before You Start

    Setting Up the Logic Analyzer for W4630 Series and W4640 Series Interposers Before You Start Ensure that all the software components listed in the topic “Hardware and Software Requirements" on page 20 are installed on the host computer and the required software licenses are also obtained and installed.

  • Page 111: Loading A Configuration File

    Setting Up the Logic Analyzer for W4630 Series and W4640 Series Interposers Loading a Configuration File The mapping of specific signals to logic analyzer channels depends on: • Which DRAMs are being probed. • How SRAM circuit is designed. •...

  • Page 112: To Save A Configuration File

    Setting Up the Logic Analyzer for W4630 Series and W4640 Series Interposers To save a configuration file After you set up the logic analyzer, it is strongly recommended that you save the configuration. To save your work, select File>Save As... and save the configuration as an ALA format file.
  • Page 113 Keysight W4630 and W4640 Series DDR4 BGA Interposers Installation Guide 10 Characteristics, Regulatory, Safety and Storage Information Operating Characteristics / 114 Storage, Inspection, Baking, and Cleaning Guidelines / 115 Safety Information for the E5849A and E5847A Cable Adapters / 116 Regulatory Notices / 117...

  • Page 114: Characteristics, Regulatory, Safety And Storage Information

    Characteristics, Regulatory, Safety and Storage Information Operating Characteristics The following operating characteristics are not specifications, but are typical operating characteristics. Characteristics Description Temperature Operating: +5° C to +40° C Non Operating : - 40 ° C to +70° C Al titude 4,600 m (15,000 ft) Relative Humid ity Range 50% RH Min/80% RH Max at 40°...

  • Page 115: Storage, Inspection, Baking, And Cleaning Guidelines

    Characteristics, Regulatory, Safety and Storage Information Storage, Inspection, Baking, and Cleaning Guidelines The following are some of the guidelines for storing, shelf life, and cleaning of the W4630-series and W4640-series interposers. Guidelines for Shelf Life and Solder-ability of W4630-series and W4640-series Interposers If your Interposer exceeds shelf life (1 year) before solder into application, use the following inspection and baking method.

  • Page 116: Safety Information For The E5849A And E5847A Cable Adapters

    Characteristics, Regulatory, Safety and Storage Information Safety Information for the E5849A and E5847A Cable Adapters To clean the instrument Do not attempt to clean this product. Safety Symbols Safety Symbol Description "Caution" or "Warning" risk of danger marked on product. See "Safety Notices" on page 2 and refer to this manual for a description of the specific danger.

  • Page 117: Regulatory Notices

    Characteristics, Regulatory, Safety and Storage Information Regulatory Notices WEEE Compliance Safety Symbol Description This product complies with the WEEE Directive (2002/96/EC) marking requirements. The affixed label indicates that you must not discard this electrical/electronic product in domestic household waste. Product Category: With reference to the equipment types in the WEEE Directive Annex I, this product is classed as a "Monitoring and Control Instrumentation"...
  • Page 118 Characteristics, Regulatory, Safety and Storage Information Keysight W4630 and W4640 Series DDR4 DRAM BGA Interposers Installation Guide...
  • Page 119 Index alignment template, Grypper socket, regulatory information, regulatory notices, required probes, cables, LA modules, 20, rework facilities, B4621B decoder software, humidity indicator, riser, 12, 14, 23, 26, 34, 36, 42, 45, 49, 55, B4622B toolset, B4661A-1FP, B4661A-3FP, 39, B4661A-4FP, in this guide, bake, installing the W4631A interposer, bend radius, 11, 13, 16, 33,...
  • Page 120 Index Keysight W4630 and W4640 Series DDR4 DRAM BGA Interposers Installation Guide...
  • Page 121 Keysight W4630 and W4640 Series DDR4 DRAM BGA Interposers Installation Guide...
  • Page 122 This information is subject to change without notice. © Keysight Technologies 2015 Edition 6 December 2015 *W4631-97000* www.keysight.com...

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