Positive-working light-sensitive composition containing diazonium salt and novolak resin
US5370965A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 9, 1992 |
| Grant date | Dec 6, 1994 |
| Priority date | — |
| Expiry date | Dec 9, 2012 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03F7/016
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A positive-working light-sensitive composition comprises a diazonium salt represented by the following general formula (I) and an alkali-soluble polymer: ##STR1## wherein R.sup.1 represents a substituted or unsubstituted alkyl group having 3 to 18 carbon atoms; R.sup.2 represents a hydrogen atom, a substituted or unsubstituted alkyl group, a substituted or unsubstituted aryl group, a substituted or unsubstituted alkoxy group, a substituted or unsubstituted phenoxy group or a halogen atom; A represents an organic group; X.sup.-- represents a counterion or an anion; n is an integer ranging from 1 to 4 and m is an integer ranging from 1 to 3, provided that the sum of n and m is equal to 4. The positive-working light-sensitive composition has high sensitivity and can ensure the formation of clear images.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.