General Information; Introduction; Features; Warranty Information - Keithley 7174A Instruction Manual

1.1

Introduction

This section contains general information about the Model
7174A Low Current Matrix Card. The Model 7174A Low
Current Matrix Card is designed for semiconductor research,
development, and production applications that require high
quality and performance switching I-V (current versus volt-
age) and C-V (capacitance versus voltage) signals. The
model 7174A is ideal for use with Keithley Model 236
Source Measure Unit for semiconductor testing and other
low current switching applications. Model 237 and Model
238 Source Measure Units can also be used below the maxi-
mum signal level (200V, 2A carry) of the Model 7174A Low
Current Matrix Card (for full specifications, refer to para-
graph 1.6). The Model 7174A also can be used with Models
590 and 595 C-V instruments.
Section 1 is arranged in the following manner:
1.2

Features

1.3

Warranty information

1.4 Manual addenda
1.5 Safety symbols and terms
1.6 Specifications
1.7 Unpacking and inspection
1.8 Packing for shipment
1.9 Optional accessories
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General Information

1.2 Features
Key features of the Model 7174A Low Current Matrix Card
include:
• Eight row by twelve column (8 × 12) switching matrix
configuration, with signal and guard switched at each
crosspoint
• Paths have offset currents of less than 100fA with typi-
cal offset currents of 50fA
• Maximum Leakage Currents:
Pin to Ground -- 0.01 pA/V
Pin to Pin -- 0.005 pA/V
• 3-lug Triaxial Connectors (Signal, Guard, Chassis) for
all row and columns allow guarding of each signal path-
way, minimizing effects of stray capacitance, leakage
current, and leakage resistance
• Model 7174A cards can be connected together inter-
nally using the supplied SMB to SMB cables (jumpers)
to expand the number of columns in the matrix.
1.3 Warranty information
Warranty information is located on the inside front cover of
this manual. Should your Model 7174A require warranty
service, contact your Keithley representative or authorized
repair facility in your area for further information.
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