Patent · US Expired

Silicon carbide barrier layers for porous low dielectric constant materials

US6100587A · kind A · utility

47Cited by
15References
6Claims
0Family size

Assignee

Inventors

Key dates

Filing dateAug 26, 1999
Grant dateAug 8, 2000
Priority date
Expiry dateAug 26, 2019

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH01L21/76831
  • WIPO fieldSemiconductors
  • WIPO sectorElectrical engineering

Abstract

Interconnects in porous dielectric materials are coated with a SiC-containing material to inhibit moisture penetration and retention within the dielectric material. Specifically, SiC coatings doped with boron such as SiC(BN) show particularly good results as barrier layers for dielectric interconnects.

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