Development of light-sensitive quinone diazide compositions
US4464461A · kind A · utility
21Cited by
2References
30Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 22, 1983 |
| Grant date | Aug 7, 1984 |
| Priority date | — |
| Expiry date | Jul 22, 2003 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03F7/322
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Light-sensitive compositions containing a quinone diazide which are useful in positive-working photoresists and positive-working lithographic printing plates are developed with a developing composition comprising a quaternary alkanol ammonium hydroxide developing agent and a stabilizing concentration of a semicarbazide.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.