Patent · US Expired

Gate dielectric and method

US6919251B2 · kind B2 · utility

19Cited by
5References
10Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJul 31, 2002
Grant dateJul 19, 2005
Priority date
Expiry dateJul 31, 2022

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH10D84/0181

Abstract

CMOS gate dielectric made of high-k metal silicates by passivating a silicon surface with nitrogen compounds prior to high-k dielectric deposition. Optionally, a silicon dioxide monolayer may be preserved at the interface.

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