Semiconductor element

US3942244A · kind A · utility

Assignee

• Semikron Gesellschaft fur Gleichrichterbau und Elektronik m.b.H.

Inventors

• Peter Flohrs · Reutlingen, DE
• Horst Schafer · Aschaffenburg, DE

Key dates

• Filing date: May 24, 1974
• Grant date: Mar 9, 1976
• Expiry date: May 24, 1994

Classification

• Technology area (CPC H): Electricity
• CPC primary: H01L2924/12036
• WIPO field: Semiconductors
• WIPO sector: Electrical engineering

Abstract

A semiconductor electrode is prepared by (a) contacting a semiconductor w a first contacting metal (capable of forming an alloy with the semiconductor), (b) contacting the first contacting metal with a ductile layer of a second contacting metal, (c) heating the resulting combination so as to form, simultaneously, a liquid phase between the semiconductor and the first contacting metal and between the first contacting metal and the ductile second contacting metal, however leaving intact a major portion of the ductile second contacting metal layer, and (d) cooling the thus obtained product whereby a solder contact which is resistant to load fluctuations can be readily made on the ductile layer with known semiconductor hard solder.