Accession Number:

AD0608240

Title:

A PRODUCTION ENGINEERING MEASURE FOR THE IMPROVEMENT OF PRODUCTION TECHNIQUES TO INCREASE THE RELIABILITY FOR DIFFUSED SILICON CONTROLLED SWITCHES TYPES 2N689.

Descriptive Note:

Quarterly progress rept. no. 5, 1 Jul-30 Sep 64,

Corporate Author:

GENERAL ELECTRIC CO AUBURN N Y

Report Date:

1964-09-30

Pagination or Media Count:

28.0

Abstract:

Deterioration of the ultrasonic welder tip was solved partially by use of a tungsten carbide tip in place of the Udimet tip. A weld schedule was established on the high temperature glass housing to crimp and weld the gate and cathode tubes no difference in setting was required for copper plated or unplated housings. Increasing the p-region surface concentration increased the possibility to obtain the dvdt specification for the cathode junction without affecting other device parameters. Two interim life tests indicated that large-scale multilevel stress tests will be successful.

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE