Patent · US Expired

Process for planarizing a substrate

US4612210A · kind A · utility

8Cited by
8References
8Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJul 25, 1985
Grant dateSep 16, 1986
Priority date
Expiry dateJul 25, 2005

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10T428/31721
  • WIPO fieldSemiconductors
  • WIPO sectorElectrical engineering

Abstract

A surface coating of high glass temperature and superior mechanical properties along with excellent planarization and gap filling is used to coat substrates. The coating comprises a polyamide alkyl ester from a pyromellitic alkyl diester and a para-linked aromatic diamine dissolved in a solvent containing at least 10% of a co-solvent boiling above 220.degree. C.

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