Keithley S530 User Manual

Section 3: Test subroutine library reference S530 Parametric Test System Test Subroutine Library User's Manual
3-12 S530-907-01 Rev. A / September 2015
Details
This subroutine sweeps the collector-base voltage from vcbstart to vcbstop while monitoring the
collector current with the emitter open. When the programmed current level (ipgm) is reached, the
last collector-base voltage increment is returned as BVCBO1.
If a positive substrate pin is specified, the substrate is grounded. If a positive substrate pin is not
specified, the substrate is left floating.
The udelay parameter should be programmed to approximate c * vcbmax / ipgm, where c =
junction capacitance of the device under test.
V/I polarities
The polarities of vcbmin, vcbmax, and ipgm are determined by device type.
Source-measure units (SMUs)
 SMU1: Forces V
CB
, programmed current limit = 1.25 * ipgm, measures collector current (I
CBO
)
Example
Result = bvcbo1(e, b, c, sub, vcbmin, vcbmax, nstep, ipgm, udelay, type);
Schematic

Keithley S530 Specifications

General

Brand	Keithley
Model	S530
Category	Test Equipment
Language	English