Keithley Series 2600 Application Manual Download

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6-2

SeCTIon 6

High Power Tests

function ‘

RunHighCurrent(sourcei,points

)’, where

sourcei

is the desired current value and

points

is the

number of voltage measurements .
In the program ‘

9 .

KI2602Example_High_Current.tsp

’, the func-

tion

RunHighCurrent(sourcei,points)

is created .

sourcei

•

represents the current value delivered to the

DUT . Note that the programmed current value for each
SMU is half the isource value .

points

•

represents the number of voltage measurements

acquired

If you wanted to source 2A total to the DUT and collect 100
voltage measurements, you would send

RunHighCurrent(2, 100)

to the instrument .

The sources will be enabled, and the current source and

10 .

voltage measurements will be executed .
Once the measurements have been completed, the data will

11 .

be presented in the Instrument Console window of TSB .

6.1.3 Program 15 Description

After the SMUs are returned to default conditions, SMUA is con-
figured as follows:

Source I

•

40V compliance, autorange

•

Local sense

•

1 NPLC integration rate

•

sourcei

•

: Desired DUT current

points

•

: Number of points to measure

Next, SMUB is set up to operate in the following manner:

Source I

•

Local sensing

•

40V, autorange

•

sourcei

•

: Desired DUT current

After the instrument is set up, the outputs are zeroed and enabled .
Each SMU performs a DC current source and SMUA begins to
measure the voltage . When the data collection has reached the
desired number of points, the outputs are disabled and the voltage
data is printed to the Instrument Console of TSB .

6.2 Instrument Connections

WARNING

If either SMU reaches a compliance state, the instru-
ment, device, or both could be damaged. To avoid
this, set the compliance value to the maximum

for your instrument and avoid open or other high
resistance states for the SMUs when in Current
Source mode.

6.2.1 Program 16 Test Configuration

Figure 6-2

shows the test configuration for Program 16: SMUA

and SMUB outputs are wired in series, SMUA Lo to SMUB Hi,
SMUA Hi to DUT, SMUB Lo to DUT . This effectively doubles the
maximum voltage output and can deliver a total of 80V at 1A using
a Model 2602 System SourceMeter instrument .

6.2.2 example Program 16: High Voltage

Source and Current Measure

Program 16 demonstrates how to deliver higher voltage sourcing
values using a dual-channel System SourceMeter instrument .
Follow these steps to use this program .

With the power off, connect the dual-channel Instrument to

1 .

the computer’s IEEE-488 interface .
Connect the test fixture to both units using appropriate

2 .

cables .
Turn on the Instrument and allow the unit to warm up for two

3 .

hours for rated accuracy .
Turn on the computer and start Test Script Builder (TSB) . Once

4 .

the program has started, open a session by connecting to the
instrument . For details on how to use TSB, see the Series 2600
Reference Manual .
You can simply copy and paste the code from Appendix A in

5 .

this guide into the TSB script editing window (

Program 16

manually enter the code from the appendix, or import the TSP

Series 2600

System SourceMeter

SMUB

Output

SMUA

DUT

Figure 6-2. High voltage (SMUs in series)