Accession Number : AD0787519

Title :   An Investigation of Current Mode Second Breakdown.

Descriptive Note : Final rept. 1 Nov 73-31 Jul 74,

Corporate Author : ALABAMA UNIV UNIVERSITY BUREAU OF ENGINEERING RESEARCH

Personal Author(s) : Raburn,W. D.

Report Date : JUL 1974

Pagination or Media Count : 34

Abstract : A discussion is given on current mode second breakdown and related effects. A general description of second breakdown for different circuit configurations is given. Mathematical and physical models are given that show the causes of current mode second breakdown and the levels at which it occurs. The unstable voltage and current ranges and the associated oscillations are discussed. Computer solutions are given for the sustaining voltage for several different doping profiles. Finally a discussion is given on breakdown voltages in punch through limited transistors. (Author)

Descriptors :   *Failure(Electronics), *Transistors, Mathematical models, Semiconductor devices, Voltage, Oscillation, Electric current, Bipolar transistors

Subject Categories : Electrical and Electronic Equipment

Distribution Statement : APPROVED FOR PUBLIC RELEASE