Step 3. selects devices valid for the hci test, Step 4. characterizes the initial parameters – Agilent Technologies Agilent E5250A User Manual

Page 275

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Agilent E5250A User’s Guide, Edition 11

9-19

Executing Sample Programs

HCI Measurement Program

Step 3. Selects devices valid for the HCI test

This step judges whether each device is valid according to the current leak test
result. The IGLEAK.MES and IDLEAK.MES files are used to set up the 4155/4156
for this step.

As shown below, 24 devices are connected to the E5250A, and measured
individually by switching. For devices that fail this step, no further testing is
performed, and "0.0" is recorded.

Step 4. Characterizes the initial parameters

This step initially (before stress) measures parameters for the devices that were
determined to be valid by the previous step.

The PARAM.MES file sets up the 4155/4156.

A summary of the measurement setup saved in PARAM.MES is shown below. For
details of the setup data, GET the PARAM.MES file using the 4155/4156, and refer
to the setup displayed on the 4155/4156.

Channel/Source Setup:

Device

Terminal

Device 1

Device2

Device 3

. . . .

Device 24

Gate

1

2

3

. . . .

24

Drain

25

26

27

. . . .

48

Sub

49

50

51

. . . .

72

Source

GNDU

GNDU

GNDU

GNDU

GNDU

SMU

V NAME

I NAME

MODE

FUNCTION

Source Setup

SMU1

VG

IG

V

VAR1

0 to 5V, 20mV step

SMU3

VD

ID

V

CONST

0.1V

SMU4

VB

IB

V

CONST

0V

GNDU

VS

IS

COMMON

CONST

Common

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