Executing Sample Programs

HCI Measurement Program

Table 9-5

HCI Degradation Measurement Flow

 

 

 

 

 

 

 

 

step

Description

4155/4156

 

 

setup file

 

 

 

 

 

 

 

 

 

 

 

1

Initializes the Instruments:

 

 

 

 

1. Resets the 4155/4156.

 

 

 

 

2. Resets and initializes the E5250A.

 

 

 

 

Configuration Mode: AUTO

 

 

 

 

Bias Mode: OFF

 

 

 

 

Connection Rule: FREE

 

 

 

 

Channel Status: All Relays Open

 

 

 

 

 

 

 

 

2

Determines Stress Condition. See later.

IBVG.MES

 

 

 

 

 

 

 

3

Selects devices valid for the HCI test. See later.

IGLEAK.MES

 

 

 

 

IDLEAK.MES

 

 

 

 

 

 

 

4

Characterizes the initial parameters. See later.

PARAM.MES

 

 

 

 

 

 

 

5

Applies stress and characterizes the parameters.

PARAM.MES

 

 

 

See later.

 

 

 

 

 

 

 

Step 2. Determines Stress Condition

 

This step determines the gate stress voltage (Vgstr) from the Ib-Vgs measurement

 

test result. This Vgstr value will be used in step 5.

 

Test Device for Defining Stress Conditions

NOTE

 

The test device used to determine the stress conditions (step 2) should not be used

 

for Hot-Carrier stress testing (steps 3 to 5).

 

 

9-18

Agilent E5250A User’s Guide, Edition 9

Page 274
Image 274
Agilent Technologies Agilent E5250A manual Determines Stress Condition, Test Device for Defining Stress Conditions