Keithley Series 2600 User Manual

A-69
APPENDIX A
Scripts
--Configure Substrate (node [2] SMUA) source and measure settings
node[2].smua.source.func = node[2].smua.OUTPUT_DCVOLTS
node[2].smua.source.autorangev = node[2].smua.AUTORANGE_ON --Enable source
autorange
node[2].smua.source.levelv = 0
node[2].smua.source.limiti = l_icmpl
node[2].smua.measure.autorangei = node[2].smua.AUTORANGE_ON --Enable measure
autorange
node[2].smua.measure.autozero = node[2].smua.AUTOZERO_AUTO
node[2].smua.measure.nplc = l_nplc --Measurement integration rate
node[2].smua.source.output = node[2].smua.OUTPUT_ON --Enable Output
--Enable Substrate Bias (node [2] SMUA)
node[2].smua.source.levelv = l_vsbsource
--Execute sweep
for l_vgs_iteration = 1, l_vgssteps do
node[1].smub.source.levelv = l_vgssource_val
l_vds_data[l_vgs_iteration] = {} --Create new row in table
l_id_data[l_vgs_iteration] = {} --Create new row in table
l_vgs_data[l_vgs_iteration] = node[1].smub.measure.v() --Measure gate-source
voltage
for l_vds_iteration = 1,l_vdssteps do
if (l_vds_iteration == 1) then --Intialize start source value
l_vdssource_val = l_vdsstart
end --if
--delay(1)
l_vds_data[l_vgs_iteration][l_vds_iteration] = node[1].smua.
measure.v()
--Measure sourced voltage
l_id_data[l_vgs_iteration][l_vds_iteration] = node[1].smua.measure.i()
--Measure current
l_vdssource_val = l_vdssource_val + l_vdsstep --Calculate new source
value
if (l_vds_iteration == l_vdssteps) then --Reinitialize voltage value
after last
--iteration
l_vdssource_val = l_vdsstart
end --if

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)