Layer system for opto-electronic displays

US4532174A · kind A · utility

Assignee

• Siemens Aktiengesellschaft · DE

Inventors

• Helmut Freller · Westerburg, DE
• Heinrich Hassler · Wendelstein, DE
• Peter Schack · Nuremberg, DE
• Ludwig Schultz · Dresden, DE

Key dates

• Filing date: Jun 30, 1983
• Grant date: Jul 30, 1985
• Expiry date: Jun 30, 2003

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/24967
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

A simplified, easily producible, strongly adherent, solderable and corrosion resistant layer system for opto-electronic displays is produced by vapor deposition techniques. In accordance with the invention, the layer system is formed of two layers; a transparent first layer formed of a nonsolderable oxide semiconductor, such as In.sub.2 O.sub.3 SnO.sub.2, and a second layer formed of a solderable, oxidation-resistant material, which is formed at least partially of a copper alloy containing an alloying additive consisting of a metal which is less noble than copper, illustratively CuMg.