Keithley S530 User Manual

S530/S540 KTE Linear Parametric Test Library (LPTLib) User's Manual Section 3:
LPTLib command reference
S530-900-01 Rev. E / September 2017 3-47
mpulse
This command uses a source-measure unit (SMU) to force a voltage pulse and measure both the voltage and
current for exact device loading.
Usage
int mpulse(int instr_id, double pulse_amplitude, double pulse_duration, double *vmeas,
double *imeas);
instr_id
The instrument identification code of the instrument under control
pulse_amplitude
The pulse height in volts
pulse_duration
The pulse width in seconds; the measurements are made at the end of the pulse
before the
mpulse
command is shut down
vmeas
The variable used to receive the voltage on the output of the SMU at the time the
pulse terminates; this reading is buffered internally
imeas
The variable used to receive the current drawn from the SMU; this measurement is
made simultaneously with the voltage, so the combined values are an exact
representation of the device load at pulse termination
Details
Voltage and current are measured just before the pulse terminates. Pulse mode is used because the
device under test will be destroyed if the voltage is applied for a long period of time, such as with
GaAs type devices or high-power bipolar.
Example
.
.
mpulse(SMU1, vds, 1.0E-3, vdsat, idsat)
This example measures the drain current of a metal-oxide semiconductor field-effect transistor (MOSFET)
when drain-source voltage (V
DS
) equals gate-source voltage (V
GS
). A voltage pulse, V
DS
, is applied to the
drain. The pulse duration is 1 ms. Voltage across the MOS transistor, V
DSAT
, and drain current, I
DSAT
, are
measured.
Also see
None

Keithley S530 Specifications

General

Brand	Keithley
Model	S530
Category	Test Equipment
Language	English

Summary

Safety Precautions

General Information

Introduction

Overview of the manual's structure and content.

Manual Contents

Details the structure and information presented in each section.

Linear Parametric Test Library (LPTLib)

Introduction

Introduces the Keithley LPTLib as a low-level software interface for parametric testers.

Measuring

Discusses the tester's ability to make measurements, including ordinary, integrated, and averaged.

Ranging

Discusses automatic range selection (autoranging) and its features like smart and sticky ranging.

Optimizing Test Sequences

Introduces methods to optimize the S530/S540 for faster operation.

LPTLib Command Reference

Conventions Used in this Manual

Explains conventions like case-sensitivity and parameter formatting.

Source Commands

Lists commands for controlling sources like forceX, limitX, pulseX.

Measure Commands

Lists commands for measurements like avgX, bmeasX, intgX.

Pulse Generator Commands

Lists commands for pulse generator units (PGU) like pgu_current_limit, pgu_delay.

Error Definitions

Result Values Indicating an Error

Table of error values returned as measured results and their meanings.

Error Messages

Lists error messages with numbers, descriptions, and remarks.