Keithley Series 2600 User Manual

A- 64
APPENDIX A
Scripts
l_source_val = l_source_val + l_step --Calculate new source value
node[1].smub.source.levelv = l_source_val --Increment source
end--for
node[1].smua.source.output = node[1].smua.OUTPUT_OFF --Disable output
node[1].smub.source.output = node[1].smub.OUTPUT_OFF --Disable output
node[2].smua.source.output = node[2].smua.OUTPUT_OFF --Disable output
Print_Data(l_vgs_steps, l_id_curr, l_vgs_volt,l_isb_curr)
end--function Diode_Fwd_Chr()
function Print_Data(vgssteps,idcurr,vgsvolt,isbcurr)
--Print Data to output queue
--Local Variables
local l_vgs_steps = vgssteps
local l_id_curr = idcurr
local l_vgs_volt = vgsvolt
local l_isb_curr = isbcurr
print(“Drain-source current(A):”, “Gate-source voltage(V):”, “Substrate-source
current(A):” )
for l_i = 1, l_vgs_steps do
print(l_id_curr[l_i], l_vgs_volt[l_i], l_isb_curr[l_i])
end
end --function Print_Data()
--FET_Isb_Vgs()
Program 13. Common-Source Characteristics with Substrate Bias
--[[
FET_Comm_Source_Vsb():
This program applies a bias to the substrate-source of an FET (VSB) and a staircase sweep
on the gate-source voltage (VGS). At each VGS value, the drain-source voltage (VDS) is
also swept linearly.
At each point, the VDS and IDS are measured and printed.
Required equipment:
(1) Dual-channel Keithley Series 2600 System SourceMeter instrument

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)