Keithley Series 2600 User Manual

A-12
APPENDIX A
Scripts
------------------ Keithley TSP Function ------------------
function Diode_Fwd_Char_Log(ilevel, start, stop, points) --CConfigure instrument to source
a bias
--current, and perform a logarithmic current sweep from start to stop in a user-defined
number of points per decade.
--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 = 1 --Integration rate of measurement
--Local sweep variables
local l_start = start --Sweep start current
local l_stop = stop --Sweep stop current
local l_points = points --Number of steps in sweep
local l_delay = 0.01 --Source delay
--Default values and level check
if (l_ilevel == nil) then --Use default value
l_ilevel = 0
end --if
if (l_ilevel > 0.1) then --Coerce value
l_ilevel = 0.1
end --if
if (l_start == nil) then --Use default value
l_start = 1E-6
end --if
if (l_start > 1) then --Coerce value
l_start = 1
end --if
if (l_stop == nil) then --Use default value
l_stop = 1E-2
end --if
if (l_stop > 1) then --Coerce value
l_stop = 1
end --if
if (l_points == nil) then --Use default value
l_points = 10

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)