Patent · US Expired

Method of manufacturing semiconductor device

US7235485B2 · kind B2 · utility

15Cited by
7References
20Claims
0Family size

Assignees

Inventors

Key dates

Filing dateOct 14, 2005
Grant dateJun 26, 2007
Priority date
Expiry dateOct 14, 2025

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH01L21/76895
  • WIPO fieldSemiconductors
  • WIPO sectorElectrical engineering

Abstract

Provided is a method of manufacturing a semiconductor device with enhanced electrical characteristics. The method includes disposing a substrate on a substrate support in a process chamber, pre-heating the substrate on the substrate support adjusted to a temperature from 300 to 400° C. for 60 seconds or more, forming a silicon protective layer on the substrate by supplying a silicon source gas into the process chamber and heating the substrate on the substrate support adjusted to a temperature from 300 to 400° C. for 10 seconds or more, and forming a tungsten layer on the silicon protective layer.

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