Patent · US Expired

Deposited film formation method utilizing selective deposition by use of alkyl aluminum hydride

US5180687A · kind A · utility

41Cited by
10References
21Claims
0Family size

Assignee

Inventors

Key dates

Filing dateSep 24, 1990
Grant dateJan 19, 1993
Priority date
Expiry dateSep 24, 2010

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH01L2924/0002
  • WIPO fieldSemiconductors
  • WIPO sectorElectrical engineering

Abstract

By providing a deposited film formation method in which aluminum or a metal composed mainly of aluminum of good quality is selectively deposited according to the CVD method utilizing an alkyl aluminum hydride and hydrogen, and then pure aluminum or a metal composed mainly of aluminum is non-selectively deposited, it becomes possible to form an electroconductive film of good quality within fine openings or on an insulating layer.

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