Keithley Series 2600 User Manual

A-15
APPENDIX A
Scripts
To run:
1) From Test Script Builder
- Right-click in the program window, select “Run as TSP”
- At the TSP> prompt in the Instrument Control Panel, type Diode_Fwd_Char()
2) From an external program
- Send the entire program text as a string using standard GPIB Write calls.
Rev1: JAC 5.22.2007
]]--
------------------ Keithley TSP Function ------------------
function Diode_Fwd_Char_Pulse(ilevel, start, stop, ton, toff, steps) --Configure instrument
to source a
--bias current,and perform a pulsed current sweep from start to stop in a user-defined
number of steps.
--Each pulse is on ton (s) and off toff (s) and returns to the bias level during the toff
time.
--Returns measured voltage and current values.
--Global variables
local l_irange = 100E-2 --Current source range
local l_ilevel = ilevel --Initial source value
local l_vcmpl = 6 --Source compliance
--Shared local variables
local l_nplc = 0.1 --Integration rate of measurement
--Local sweep variables
local l_start = start --Sweep start current
local l_stop = stop --Sweep stop current
local l_steps = steps --Number of steps in sweep
local l_delay = 0.001 --Source delay
local l_ton = ton --Pulse on duration
local l_toff = toff --Pulse off duration
local l_tonwm --Adjusted Pulse on duration to accomodate Measurement Duration
--Default values and level check
if (l_ilevel == nil) then --Use default value
l_ilevel = 0
end --if
if (l_ilevel > 1E-1) then --Coerce value
l_ilevel = 1E-1
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)