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ASTM F978

Standard Test Method for Characterizing Semiconductor Deep Levels by Transient Capacitance Techniques

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Organization: ASTM
Publication Date: 10 January 2002
Status: inactive
Page Count: 8
ICS Code (Semiconducting materials): 29.045
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This test method covers three procedures for determining the density, activation energy, and prefactor of the exponential expression for the emission rate of deep-level defect centers in semiconductor depletion regions by transient-capacitance techniques. Procedure A is the conventional, constant voltage, deep-level transient spectroscopy (DLTS) technique in which the temperature is slowly scanned and an exponential capacitance transient is assumed. Procedure B is the conventional DLTS (Procedure A) with corrections for nonexponential transients due to heavy trap doping and incomplete charging of the depletion region. Procedure C is a more precise referee technique that uses a series of isothermal transient measurements and corrects for the same sources of error as Procedure B.

This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

Document History

ASTM F978
January 10, 2002
Standard Test Method for Characterizing Semiconductor Deep Levels by Transient Capacitance Techniques
This test method covers three procedures for determining the density, activation energy, and prefactor of the exponential expression for the emission rate of deep-level defect centers in...
January 1, 1990
Standard Test Method for Characterizing Semiconductor Deep Levels by Transient Capacitance Techniques
1. Scope 1.1 This test method covers three procedures for determining the density, activation energy, and prefactor of the exponential expression for the emission rate of deep-level defect centers in...
March 27, 1986
STANDARD TEST METHOD FOR CHARACTERIZING SEMICONDUCTOR DEEP LEVELS BY TRANSIENT CAPACITANCE TECHNIQUES
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