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.

Device

Device 1

Device2

Device 3

. . . .

Device 24

Terminal

 

 

 

 

 

 

 

 

 

 

 

Gate

1

2

3

. . . .

24

 

 

 

 

 

 

Drain

25

26

27

. . . .

48

 

 

 

 

 

 

Sub

49

50

51

. . . .

72

 

 

 

 

 

 

Source

GNDU

GNDU

GNDU

GNDU

GNDU

 

 

 

 

 

 

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:

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

 

 

 

 

 

 

Agilent E5250A User’s Guide, Edition 9

9-19

Page 275
Image 275
Agilent Technologies Agilent E5250A manual Selects devices valid for the HCI test, Characterizes the initial parameters