Patent · US Expired

Boride electrodes and barriers for cell dielectrics

US6316800A · kind A · utility

13Cited by
15References
15Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMay 4, 2000
Grant dateNov 13, 2001
Priority date
Expiry dateMay 4, 2020

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH10B12/485
  • WIPO fieldSemiconductors
  • WIPO sectorElectrical engineering

Abstract

Titanium boride (TiB.sub.x), zirconium boride (ZrB.sub.x) and hafnium boride (HfB.sub.x) barriers and electrodes for cell dielectrics for integrated circuits, particularly for DRAM cell capacitors. The barriers protect cell dielectrics from diffusion and other interaction with surrounding materials during subsequent thermal processing.

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