Hardenable photoimageable compositions
US5858615A · kind A · utility
3Cited by
8References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 31, 1997 |
| Grant date | Jan 12, 1999 |
| Priority date | — |
| Expiry date | Jul 31, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05K3/4676
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A negative-acting photoimageable composition comprises PA1 A) between about 30 and about 90 wt % of a binder polymer which is soluble in an appropriate developer, PA1 B) between about 5 and about 30 wt % of an epoxy resin, PA1 C) between about 0 and about 30 wt % of a polyol cross-linking agent for the epoxy resin B), and PA1 D) between about 5 and about 15 wt % of a photosensitive composition of the formula: ##STR1## where the Zs are the samne or different and are selected from CX.sub.3, X, and H; the X's are the same or different halogens, and R is any chemical moiety consistant with the photoimageable composition as a whole.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.