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 3-59
Example
float res1, res2;
.
.
conpin(GND, 2, 3, 0);
conpin(SMU1, 1, 0)
conpin(SMU2, 4, 0)
forcev(SMU1, .5)
trigil(SMU1, -1e-5) /* Set the trigger point for -10 mA. */
searchv(SMU2, 0.0, 3.0, 7, 2.0E-5, &res1) /* Increase */
/* voltage until trigger */
/* point occurs. Return results to res1. */
pulsev(SMU2, 20.0, 5e-1) /* Apply a 20 V pulse to the */
/* gate for 500 ms. */
searchv(SMU2, 0.0, 3.0, 7, 2.0E-5, &res2) /* Increase */
/* voltage until trigger */
/* point occurs. Return results */
/* to res2. */
This example measures the threshold voltage shift of an FET by calling two searchv commands:
1. The searchv command measures the gate voltage required to initiate a drain current of 10 μA.
2. The searchv command measures the gate voltage required to initiate a drain current of 10 μA
immediately after a 20 V pulse is applied to the gate.
Note that the second searchv command was called without reprogramming the trigil command. This
is possible because the clear trigger command (clrtrg) was not used.
Equation 7: FET threshold voltage
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.