Agilent Technologies 16442A User manual

User’s Guide
Agilent 16442A Test Fixture
Agilent Part No. 16442-90000
Printed in Japan January 2000
Edition 3

2 Agilent 16442A User’s Guide, Edition 3
Legal Notice
The information contained in this document is subject to change without notice.
Copyright © 1994 - 2000 Agilent Technologies
This document contains information which is protected by copyright. All rights are
reserved. Reproduction, adaptation, or translation without prior written permission
is prohibited, except as allowed under the copyright laws.
•Product Warranty
Agilent Technologies warrant Agilent Technologies hardware, accessories and
supplies against defects in materials and workmanship for the period of one year
from the warranty start date specified below. If Agilent Technologies receive
notice of such defects during the warranty period, Agilent Technologies will, at
its option, either repair or replace products which prove to be defective.
Replacement products may be either new or like-new.
Warranty service of this product will be performed at Agilent Technologies.
Buyer shall prepay shipping charges to Agilent Technologies and Agilent
Technologies shall pay shipping charges to return the product to Buyer.
However, Buyer shall pay all shipping charges, duties, and taxes for products
returned to Agilent Technologies from another country.
Agilent Technologies do not warrant that the operation of Agilent Technologies
products will be uninterrupted or error free. If Agilent is unable, within a
reasonable time, to repair or replace any product to a condition as warranted,
customer will be entitled to a refund of the purchase price upon prompt return of
the product.
The Agilent Technologies products may contain remanufactured parts
equivalent to new in performance or may have been subject to incidental use.
The warranty period begins on the date of delivery or on the date of installation
if installed by Agilent Technologies. If customer schedules or delays Agilent
Technologies installation more than 30 days after delivery, warranty begins on
the 31st day from delivery.
Warranty does not apply to defects resulting from (a) improper or inadequate
maintenance or calibration, (b) software, interfacing, parts or supplies not
supplied by Agilent Technologies, (c) unauthorized modification or misuse, (d)
operation outside of the published environmental specifications for the product,
or (e) improper site preparation or maintenance.

Agilent 16442A User’s Guide, Edition 3 3
To the extent allowed by local law, the above warranties are exclusive and no
other warranty or condition, whether written or oral, is expressed or implied and
Agilent Technologies specifically disclaim any implied warranties or conditions
of merchantability, satisfactory quality, and fitness for a particular purpose.
Agilent Technologies will be liable for damage to tangible property per incident
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subject of the claim, and for damages for bodily injury or death, to the extent
that all such damages are determined by a court of competent jurisdiction to
have been directly caused by a defective Agilent Technologies product.
To the extent allowed by local law, the remedies in this warranty statement are
customer’s sole and exclusive remedies. Expect as indicated above, in no event
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special, incidental, consequential (including lost profit or date), or other damage,
whether based in contract, tort, or otherwise.
For consumer transactions in Australia and New Zealand: the warranty terms
contained in this statement, except to the extent lawfully permitted, do not
exclude, restrict or modify and are in addition to the mandatory statutory rights
applicable to the sale of this product to you.
•Assistance
Product maintenance agreements and other customer assistance agreements are
available for Agilent Technologies products.
For any assistance, contact your nearest Agilent Technologies Sales Office.
•Certification
Agilent Technologies Inc. certifies that this product met its published
specifications at the time of shipment from the factory. Agilent further certifies
that its calibration measurements are traceable to the National Institute of
Standards and Technology (NIST), to the extent allowed by the Institute’s
calibration facility, and to the calibration facilities of other International
Standards Organization members.
•Safety Summary
The following general safety precautions must be observed during all phases of
operation, service, and repair of this instrument. Failure to comply with these
precautions or with specific warnings elsewhere in this manual may impair the
protections provided by the equipment. In addition, it violates safety standards
of design, manufacture, and intended use of the instrument. Agilent
Technologies Inc. assumes no liability for customer’s failure to comply with
these requirements.

4 Agilent 16442A User’s Guide, Edition 3
•GROUND THE INSTRUMENT
This is Safety Class I instrument. To minimize shock hazard, the instrument
chassis and cabinet must be connected to an electrical ground. The power
terminal and the power cable must meet International Electrotechnical
Commission (IEC) safety standards.
•DO NOT OPERATE IN AN EXPLOSIVE ATMOSPHERE
Do not operate the instrument in the presence of flammable gases or fumes.
Operation of any electrical instrument in such an environment constitutes a
definite safety hazard.
•KEEP AWAY FROM LIVE CIRCUITS
Operation personnel must not remove instrument covers. Component
replacement and internal adjustments must be made by qualified
maintenance personnel. Do not replace components with power cable
connected. Under certain conditions, dangerous voltages may exist even
with the power cable removed. To avoid injuries, always disconnect power
and discharge circuits before touching them.
•DO NOT SERVICE OR ADJUST ALONE
Do not attempt internal service or adjustment unless another person, capable
of rendering first aid and resuscitation, is present.
•DO NOT SUBSTITUTE PARTS OR MODIFY INSTRUMENT
Because of the danger of introducing additional hazards, do not install
substitute parts or perform any unauthorized modification to the instrument.
Return the instrument to a Agilent Technologies Sales and Service Office for
services and repair to ensure that safety features are maintained.
•DANGEROUS PROCEDURE WARNINGS
Warnings, such as example below, precede potentially dangerous procedures
throughout this manual. Instructions contained in the warnings must be
followed.
WARNING Dangerous Voltage, capable of causing death, are present in this instrument.
Use extreme caution when handling, testing, and adjusting.

Agilent 16442A User’s Guide, Edition 3 5
•Safety Symbols
The general definitions of safety symbols used on equipment or in manuals are
listed below.
Instruction manual symbol: the product will be marked with this symbol when it
is necessary for the user to refer to the instruction manual in order to protect
against damage to the instrument.
Indicates dangerous voltage and potential for electrical shock. Do not touch
terminals that have this symbol when instrument is on.
Protective conductor terminal. For protection against electrical shock in case of
a fault. Used with field wiring terminals to indicate the terminal which must be
connected to ground before operating equipment.
Frame or chassis terminal. A connection to the frame (chassis) of the equipment
which normally includes all exposed metal structures.
Indicates earth (ground) terminal.
Alternating current.
Direct current.
ON (Supply).
OFF (Supply).
STANDBY (Supply).
Means INSTALLATION CATEGORY I. Measurement terminals on the rear
panel comply with INSTALLATION CATEGORY I.
WARNING The warning sign denotes a hazard. It calls attention to a procedure, practice,
condition or the like, which, if not correctly performed or adhered to, could result in
injury or death to personal.
CAUTION The caution sign denotes a hazard. It calls attention to an operating procedure,
practice, condition or the like, which, if not correctly performed or adhered to, could
result in damage to or destruction of part or all of the product.
CAT 1

6 Agilent 16442A User’s Guide, Edition 3
•Herstellerbescheinigung
GEÄUSCHEMISSION
Lpa < 70 dB
am Arbeitsplatz
normaler Betrieb
nach DIN 45635 T. 19
•Manufacturer’s Declaration
ACOUSTIC NOISE EMISSION
Lpa < 70dB
operator position
normal operation
per ISO 7779
Printing History
Edition 1: February 1994
Edition 2: August 1997
Edition 3: January 2000

Agilent 16442A User’s Guide, Edition 3
User's Guide

2 Agilent 16442A User’s Guide, Edition 3
User's Guide
Agilent 16442A test fixture is designed for testing electronic devices. You mount
the suitable socket module on the 16442A, which allows you to easily connect
various devices (DUTs) to measurement units.
The 16442A has thirteen channels:
•6 source/monitor unit (SMU) channels
Up to 3 channels can be connected to SMUs by Kelvin connections.
•2 voltage source unit (VSU) channels
•2 voltage monitor unit (VMU) channels
•2 pulse generator unit (PGU) channels
•1 ground unit (GNDU) channel
This manual provides the following information.
•Introduction
•Operation
•Installation
•Maintenance
•Specifications

Agilent 16442A User’s Guide, Edition 3 3
User's Guide
Introduction
Introduction
Agilent 16442A test fixture contains the following accessories:
Description Agilent
Part Number Quantity
1 test fixture 16442-60001 1
2 stabilizer (with two flathead screws) 16442-60002 2
3 carrying case for socket modules 16442-60101 1
4 miniature banana to pin plug connection
cable (black)
16442-61600 4
5 miniature banana to pin plug connection
cable (red)
16442-61601 4
6 miniature banana to pin plug connection
cable (blue)
16442-61602 4
7 pin plug to pin plug connection cable
(black)
16442-61603 3
8 pin plug to pin plug connection cable (red) 16442-61604 3

4 Agilent 16442A User’s Guide, Edition 3
User's Guide
Introduction
NOTE Inspecting the 16442A upon Receiving
When the 16442A arrives at your site, make sure that nothing is missing or
damaged. Unpack the carton, then check the contents against figure and table above.
(For details about furnished and optional accessories, refer to “Specifications”.)
If anything is missing or damaged, contact your nearest Agilent Technologies sales
office.
9 pin plug to pin plug connection cable (blue) 16442-61605 3
10 miniature banana to miniature clip
connection cable (black)
16442-61606 3
11 miniature banana to miniature clip
connection cable (red)
16442-61607 3
12 miniature banana to miniature clip
connection cable (blue)
16442-61608 3
13 miniature banana to miniature banana
connection cable (black)
16442-61609 3
14 miniature banana to miniature banana
connection cable (red)
16442-61610 3
15 miniature banana to miniature banana
connection cable (blue)
16442-61611 3
16 blank TeflonTM board 16058-60004 1
17 dual-in-line package socket module (28-pin) 16088-60002 1
18 axial lead package socket module 16088-60009 1
19 TO-package socket module (12-pin) 16088-60006 1
20 User's Guide (this document) 16442-90000 1
Description Agilent
Part Number Quantity

Agilent 16442A User’s Guide, Edition 3 5
User's Guide
Operation
Operation
This section is organized into the following two sections:
•Attaching a socket module onto the 16442A.
•Mounting and wiring DUT on the socket module.
Select the proper environment to execute the measurements. Place the 16442A on a
flat surface. The 16442A shields from electromagnetic interference, but Agilent
Technologies recommend that the measurement is performed in as noiseless
environment as possible for more stable and accurate measurement results.
You place the DUT into the provided socket modules in the 16442A, then measure
the dc characteristics by using the connected measurement units.
WARNING To prevent electric shock, be sure to connect the cable between the interlock
(Intlk) terminals of measurement instrument and the 16442A before
performing measurements.
WARNING Do not operate the 16442A while the High Voltage indicator is lit. Dangerous
voltages of up to 200 V may be present on the connection between measurement
units and DUT.
WARNING Do not get connection cables caught in the lid of the 16442A during
measurements. Dangerous voltage of up to 200 V may be present on the
connection cables.
CAUTION To prevent damage to instrument or DUT, do not remove or attach DUT in the
16442A when voltage or current is present.
CAUTION Do not touch any metal surface that is in the circuit path. Oil, perspiration, and dirt
prevent good electric contact and degrade measurement accuracy.
NOTE After setting up the 16442A and DUT, confirm that the connections are correct. Shut
lid of the 16442A to close switches of the interlock (Intlk) terminal.

6 Agilent 16442A User’s Guide, Edition 3
User's Guide
Operation
Circuit Schematic of the 16442A
The following figure shows the circuit schematic of the 16442A test fixture.
The 16442A is equipped with an interlock (Intlk) terminal, which prevents the user
from getting an electric shock during operation.
If more than 40 V will be forced to the 16442A, be sure to connect Intlk terminal of
the 16442A to Interlock terminal of measurement instrument using an
Interlock/LED cable (the 16493J option 001 for 1.5 m, the 16493J option 002 for
3.0 m).
When the lid of the 16442A is open, two switches of the Intlk terminal are open. The
instrument recognizes that the lid of the 16442A is not closed and does not output
high voltage (more than ±40 V).

Agilent 16442A User’s Guide, Edition 3 7
User's Guide
Operation
The following figure shows pin assignment of the Intlk terminal.

8 Agilent 16442A User’s Guide, Edition 3
User's Guide
Operation
Attaching a Socket Module onto the 16442A
After choosing correct socket module for DUT, install the socket module into the
16442A. The following figure shows how to attach socket module to the 16442A.
Use the following procedure to attach the socket module:
1. Confirm that voltage or current is not forced to the 16442A.
2. Open the lid of the 16442A.
3. Check that the black plastic fasteners of the socket module are unlocked (pulled
up).
4. Push the socket module onto the 16442A.
5. Press the black fasteners down to lock the socket module into place.
Use the following procedure to remove a socket module from the 16442A:
1. Confirm that voltage or current is not forced to the 16442A.
2. Open the lid of the 16442A.
3. Disconnect the connection cables.
4. Pull up the black plastic fasteners on both sides of the socket module.
5. Lift the socket module from the 16442A.

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User's Guide
Operation
Mounting and Wiring the DUT on the Socket Module
Thirteen types of socket modules are available for mounting the DUTs:
•Three socket modules for power devices.
•Six socket modules for small signal devices.
•Three universal socket modules and a blank Teflon board module for uniquely
shaped devices.
Non-Kelvin Connections
Use connection cables to connect the FORCE terminals on the 16442A to the
FORCE terminals on the socket module.
Kelvin Connections
•Socket Modules for Power Devices
The three socket modules for power devices have separate FORCE and SENSE
terminals for Kelvin connections. As shown in the example in the following
figure, use miniature banana to miniature banana connection cables to connect
the FORCE and SENSE terminals of the 16442A to the FORCE and SENSE
terminals on the socket module.

10 Agilent 16442A User’s Guide, Edition 3
User's Guide
Operation
•Socket Modules for Small Signal Devices
The six socket modules for small signal devices have FORCE terminals only. Up
to 3 SMU channels can be connected to DUT by Kelvin Connection. As shown
in the example in the following figure, use miniature banana to pin plug
connection cables to connect both FORCE and SENSE terminals of the 16442A
to the FORCE terminal on the socket module as follows: insert one pin plug into
the FORCE terminal of the socket module, then insert the other pin plug into the
tail hole of the inserted pin plug.
To connect sense terminals as near as possible to the DUT, connect the SENSE
terminals of the 16442A directly to the DUT with the miniature banana to
miniature clip connection cables as shown in following figure.

Agilent 16442A User’s Guide, Edition 3 11
User's Guide
Operation
Connections for a Uniquely Shaped Device
If there is no socket module suitable for a uniquely shaped DUT, you can connect
the device by using the blank Teflon board or the universal socket module:
Blank Teflon Board
Connect all the terminals directly to the DUT on the blank Teflon board with the
miniature banana to miniature clip connection cables, as shown in the following
figure. Make sure to place the DUT on the blank Teflon board.
Universal Socket Module
The following figure shows an example of a universal socket module. You solder
the connection pins into the universal socket, then insert the pin plug of the
connection cable into the connection pin.
Note that hydrochloric acid residue deposited by solder may cause electrical
problems. Agilent Technologies recommend that you solder the wiring on the
universal board using low hydrochloric acid solder (Agilent part number:
8090-0433).
Do not use the universal socket module for low-current measurements (less than
1 nA) that require low leakage current.

12 Agilent 16442A User’s Guide, Edition 3
User's Guide
Installation
Installation
You can make the 16442A stable by installing stabilizers as shown in the following
figure.
1. Put a stabilizer on both sides of test fixture.
2. Screw a flathead screw into hole of each stabilizer.
After installing stabilizers, connect terminals on the rear panel to the desired
measurement units.
NOTE When you attach the 16442A to Agilent 16440A SMU/Pulse Generator Selector or
Agilent 16441A R-Box, you do not need to install stabilizers. For attaching to
selector or R-Box procedure, see the User's Guide for selector or R-Box.

Agilent 16442A User’s Guide, Edition 3 13
User's Guide
Maintenance
Maintenance
This section provides the following maintenance information:
•Cleaning
•Performing test
•Servicing
Cleaning the 16442A Test Fixture
To maintain high performance, the 16442A must be kept clean. Oil, perspiration,
hair, dust, and dirt degrade board insulation, which increases leakage current and
decreases measurement accuracy.
Agilent Technologies recommend the following cleaning procedure:
•Chassis, lid, inner plate, and socket modules:
1. Make sure that voltage or current is not forced to the 16442A.
2. Disconnect all cables from the 16442A.
3. Using lint-free paper, gently wipe the chassis, lid, inner plate, and socket
module. For any area that will not come clean, dip the lint-free paper into
alcohol and wipe the area gently.
•Connection cables:
1. Make sure that voltage or current is not forced to the 16442A.
2. Disconnect the connection cables from the 16442A.
3. Dip lint-free paper into alcohol and gently wipe the metal contacts of the
connection cables.

14 Agilent 16442A User’s Guide, Edition 3
User's Guide
Maintenance
Performing the Interlock Circuit Test
To confirm that interlock circuit test, do as follows:
1. Connect the Intlk terminal of Agilent 4155/4156 to your interlock circuit.
2. Press System front-panel key, then select CALIB/DIAG primary softkey to
display the SYSTEM: SELF-CALIBRATION/DIAGNOSTICS page.
3. In the CALIB/DIAG field, select DIAG secondary softkey.
4. In the CATEGORY field, select I/O PERIPH secondary softkey.
5. Move pointer to the 403 (INT.) Interlock LED field.
6. Select EXECUTE secondary softkey.
7. Confirm the following:
•LED turns on within 1 sec from when interlock circuit is shorted.
•LED turns off within 1 sec from when interlock circuit is open.
8. To stop the interlock test, select STOP secondary softkey.
Servicing the Test Fixture
This section provides information for trained service personnel to repair the test
fixture.
“Replaceable Parts”provides the Agilent part numbers of replaceable parts. When a
part needs to be replaced, order the parts from the nearest Agilent Technologies
Sales and Service Office.
WARNING High voltages may be present in the test fixture when voltage or current is
added to the test fixture. Dangerous voltage may be generated on wires or parts
and the danger of electric shock exists.