Patent · US Expired

Positive resist composition

US6720128B2 · kind B2 · utility

3Cited by
1References
12Claims
0Family size

Assignee

Inventors

Key dates

Filing dateFeb 5, 2002
Grant dateApr 13, 2004
Priority date
Expiry dateJun 27, 2022

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10S430/115
  • WIPO fieldOptics
  • WIPO sectorInstruments

Abstract

A positive resist composition comprises: a compound capable of directly or indirectly generating a radical (A) on irradiation with an energy ray; or a cyclic ether compound.

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