Keysight Technologies E2613A User Manual
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Keysight Technologies E2613A User Manual

Keysight Technologies E2613A User Manual

Wedge probe adapters
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Keysight
E2613/4/5/6A & E2643/4A
Wedge Probe Adapters
User's Guide

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Summary of Contents for Keysight Technologies E2613A

  • Page 1 Keysight E2613/4/5/6A & E2643/4A Wedge Probe Adapters User’s Guide...

  • Page 2: Safety Notices

    FAR 52.227-19 (June 1987) or any equiva- lent agency regulation or contract clause. Use, dupli- © Keysight Technologies, Inc. 1997 - 2014 cation or disclosure of Software is subject to Keysight No part of this manual may be reproduced in any form Technologies’...

  • Page 3: Table Of Contents

    Contents Introduction / 5 Electrical Characteristics / 7 Critical Connection Information / 8 Differences in Supported Surface-Mounted Devices / 10 Connecting the Adapter to an IC / 13 Common Ground Plane on 16-Pin Adapters / 14 Connecting the Adapter to an Instrument / 16 Keysight Oscilloscopes and Logic Analyzers / 16 Other Instruments / 17 Cleaning an Adapter / 18...

  • Page 5: Introduction

    Keysight E2613/4/5/6A & E2643/4A User’s Guide Introduction The wedge probe adapters can be installed on thin quad flat pack (TQFP) or plastic quad flat pack (PQFP) surface-mounted integrated circuits. This probing solution provides accurate, mechanically non-invasive contact to the TQFP/PQFP package pins.
  • Page 6 - N2870A series passive probes via N2877A/N2879A accessory kits. Table 1 Available Wedge Probe Adapters IC Pin Signal Adapter Spacing Count Image E2613A 0.5 mm E2614A 0.5 mm E2615A 0.65 mm E2616A 0.65 mm E2643A 0.50 mm E2644A 0.65 mm...

  • Page 7: Electrical Characteristics

    Electrical Characteristics Electrical Characteristics Table 2 Electrical Characteristics Item Characteristic Operating Voltage < 40V (dc + peak ac) Operating Current 0.5A maximum Capacitance Between Contacts 2 pF typical (all except E2643/4A) 4.33 pF typical at 1 MHz (E2643/4A) Self-inductance 15 nH typical (all except E2643/4A) 37 nH typical at 1 MHz (E2643/4A) Cross Coupling –31 dB typical at 100 MHz (E2643/4A)

  • Page 8: Critical Connection Information

    Critical Connection Information Critical Connection Information Figure 2 shows the adapter’s wedge segments properly inserted between the IC pins. Two conductors in each wedge segment make contact with the adjacent IC pins. The conductors are connected to the adapter’s output pins. The adapters are designed for an IC pin spacing of either 0.5 mm or 0.65 mm.
  • Page 9 Critical Connection Information The wedge segment’s conductors provide two contact points on each IC pin under test as shown on Figure 4. The redundant physical connection between the wedge segments and the pins on the IC package increases reliability of the electrical connection. Figure 4 Two Conductors on Each IC Pin The wedge probe adapter is a precision tool designed for probing at a...

  • Page 10: Differences In Supported Surface-Mounted Devices

    Critical Connection Information Differences in Supported Surface-Mounted Devices The manufacturing process for making TQFP/PQFPs uses a dam bar, which prevents the plastic from spewing out between the pins of the part during the molding process. After the plastic injection process is completed, the residual metal dam bar is removed to allow electrical isolation of each pin, accomplished by a precision blanking die.
  • Page 11 Critical Connection Information Figure 5 Dam Bar Gaps and Pin Spacing...
  • Page 12 Critical Connection Information Figure 6 Supported Surface-Mounted Integrated Circuits...

  • Page 13: Connecting The Adapter To An Ic

    Connecting the Adapter to an IC Connecting the Adapter to an IC To avoid damaging the adapter, study “Critical Connection Information" CAUTION page 8 before attempting to install the adapter on an IC. Figure 7 shows various techniques for inserting the adapter, depending on the thickness of the IC and the location of the dam bar gap.

  • Page 14: Common Ground Plane On 16-Pin Adapters

    Connecting the Adapter to an IC After the adapter is attached, it should have a very solid connection to the IC. You should be able to attach a lead to the adapter while maintaining a good connection to the IC. If the adapter becomes loose after you attach it, check for one of the following problems: - the adapter has not been inserted far enough onto the pins of...
  • Page 15 Connecting the Adapter to an IC Figure 8 Adapters Pins...

  • Page 16: Connecting The Adapter To An Instrument

    Connecting the Adapter to an Instrument Connecting the Adapter to an Instrument Keysight Oscilloscopes and Logic Analyzers The adapter can be easily attached to Keysight oscilloscopes or logic analyzers. For Keysight oscilloscope probes, use a dual lead adapter as shown below. Figure 9 Adapters Connected Using a Dual-Lead Adapter Table 3...

  • Page 17: Other Instruments

    Connecting the Adapter to an Instrument Other Instruments To maintain a solid connection to the wedge probe adapter, you will need to use a flexible lead between the probe and the wedge probe adapter pins. Without the flexible lead, the weight of the probe on the wedge probe adapter will most likely cause the wedge probe adapter to disconnect from the IC.

  • Page 18: Cleaning An Adapter

    Cleaning an Adapter Cleaning an Adapter Clean the adapter contacts before each installation. Debris on the contacts will interfere with its function. Use a common toothbrush to remove any dust between the wedge segments. The individual wedge segments are very robust and will not be damaged by vigorous brushing.

  • Page 19: Repairing An Adapter

    Repairing an Adapter Repairing an Adapter Typical Bent Wedge Segments To avoid possible injury, exercise care when using any sharp tool. WARNING Use a single-edged razor blade between the wedge probe adapter conductors to straighten them as much as possible. Repeat this on each bent wedge segment conductor.

  • Page 20: Severely Bent Wedge Segments

    Repairing an Adapter Figure 13 Holding the Wedge Probes Adapter Conductors Severely Bent Wedge Segments Use a x20 or x40 microscope so you can see the bent wedge segment conductor. Use a needle probe to bend the wedge segment conductor enough that you can get tweezers on it.

  • Page 21: Pinched Air Gap

    Repairing an Adapter Figure 14 Straightening Wedge Segment Conductors Pinched Air Gap The air gap is described in “Critical Connection Information" page 8. Wedge segments may fail to make contact if this air gap is closed. The following instructions tell you how to correct this problem.
  • Page 22 Repairing an Adapter Figure 15 Repairing a Pinched Air Gap...
  • Page 23 Repairing an Adapter...
  • Page 24 *E2613-92010* Keysight Technologies, Inc. Manual Part Number: E2613-92010...

This manual is also suitable for:

E2614aE2616aE2615aE2644aE2643a

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