Patent · US Expired

Process for fabrication of spacer layer with reduced hydrogen content in semiconductor device

US6949481B1 · kind B1 · utility

33Cited by
20References
20Claims
0Family size

Assignee

Inventors

Key dates

Filing dateDec 9, 2003
Grant dateSep 27, 2005
Priority date
Expiry dateJan 22, 2024

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH10D64/037
  • WIPO fieldSemiconductors
  • WIPO sectorElectrical engineering

Abstract

Process for fabricating a semiconductor device including steps of providing a semiconductor substrate having formed thereon a semiconductor device; depositing over the semiconductor device a spacer layer, the spacer layer having a first hydrogen content; and applying a treatment to reduce the first hydrogen content to a second hydrogen content. The invention is particularly useful when applied to flash memory devices such as a charge trapping dielectric flash memory device.

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