Patent · US Expired

Semiconductor device

US6617691B2 · kind B2 · utility

2Cited by
4References
6Claims
0Family size

Assignee

Inventors

Key dates

Filing dateSep 24, 2002
Grant dateSep 9, 2003
Priority date
Expiry dateSep 24, 2022

Classification

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

Abstract

The object of the invention is to provide such a highly reliable semiconductor device as no defect such as the breakage of a tungsten conductor occurs. This object is achieved by the following means, i.e., a molybdenum film, a tungsten film and another molybdenum film are deposited in this order on an interlayer dielectric film formed on a silicon substrate.

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