Keithley Series 2600 User Manual

A-41
APPENDIX A
Scripts
errorqueue.clear() --Clear the error queue
--Configure Collector/Emitter (SMUA) source and measure settings
smua.source.func = smua.OUTPUT_DCVOLTS
smua.source.autorangev = smua.AUTORANGE_ON --Enable source autorange
smua.source.levelv = 0 --Source 0V
smua.source.limiti = l_icmpl --Set compliance level
smua.measure.autorangei = smua.AUTORANGE_ON --Enable measure autorange
smua.measure.autozero = smua.AUTOZERO_AUTO
smua.measure.nplc = l_nplc --Measurement integration rate
smua.source.output = smua.OUTPUT_ON --Enable Output
smua.source.levelv = l_vsource_val --Program source value
--Execute sweep
for l_i = 1, l_vsteps do
delay(0.01)
l_ce_volt[l_i] = l_vsource_val --Save programmed voltage
l_ce_curr[l_i] = smua.measure.i() --Measure current
l_vsource_val = l_vsource_val + l_vstep --Calculate new source value
smua.source.levelv = l_vsource_val --Increment source
end--for
smua.source.output = smua.OUTPUT_OFF --Disable output
smua.source.levelv = 0 --Return source to bias level
Print_Data(l_vsteps,l_ce_volt, l_ce_curr)
end--function Vceo()
function Print_Data(vsteps, ce_volt,ce_curr)
--Print Data to output queue
--Local Variables
local l_vsteps = vsteps
local l_i = 1 --Iteration variable
local l_ce_volt = ce_volt
local l_ce_curr = ce_curr
print(“”)
print(“Vceo (V)”,”Iceo (A)”)

Keithley Series 2600 Specifications

General

Model	Series 2600
Measurement Functions	Voltage, Current, Resistance, Power
Resolution	Up to 6.5 digits
Current Source Range	Up to 10A
Communication Interfaces	GPIB, USB
Applications	Semiconductor testing
Category	Source Measure Unit (SMU)
Channels	Single or Dual Channel (varies by model)