Patent · US Expired

Single crystal films of cubic group II fluorides on semiconductor compounds

US4878956A · kind A · utility

0Cited by
4References
11Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMar 9, 1989
Grant dateNov 7, 1989
Priority date
Expiry dateMar 9, 2009

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10S438/967
  • WIPO fieldSemiconductors
  • WIPO sectorElectrical engineering

Abstract

Certain semiconductor device structures are described in which single crystal layers of cubic Group II fluorides cover at least part of the surface of III-V semiconductor compound. The fluoride crystal has a cubic structure and may be lattice matched or lattice mismatched to the compound semiconductor substrate depending on fluoride composition. These fluoride single crystal layers are put down by a moleuclar beam epitaxy procedure using certain critical substrate temperature ranges and a particular cleaning procedure.

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