Patent · US Expired

Semiconductor device with two passivating layers

US4063275A · kind A · utility

8Cited by
8References
6Claims
0Family size

Assignee

Inventors

Key dates

Filing dateOct 22, 1975
Grant dateDec 13, 1977
Priority date
Expiry dateOct 22, 1995

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10S257/905
  • WIPO fieldSemiconductors
  • WIPO sectorElectrical engineering

Abstract

A semiconductive device is provided which includes a single crystal substrate. A first insulating layer arranged on one surface of the substrate is of polycrystalline silicon containing oxygen. A second insulating layer formed on the first insulating layer is of polycrystalline silicon containing one of a group consisting of nitrogen, Si.sub.3 N.sub.4, Al.sub.2 O.sub.3 and silicone resin. The substrate includes at least one PN junction which extends to the said surface of the substrate. A novel method of making is also disclosed.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.