Photodefineable compositions
US6727038B1 · kind B1 · utility
0Cited by
4References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 20, 2001 |
| Grant date | Apr 27, 2004 |
| Priority date | — |
| Expiry date | Feb 21, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S430/124
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A photodefineable mixture comprising oligomeric divinyltetramethyldisiloxane bisbenzocyclobutene as its major resin component dissolved in mesitylene and at least 2,6-bis(4-azidobenzylidene)-4-ethylcyclohexanone as a photosensitive agent in an amount sufficient to convert the mixture to an organic-insoluble solid upon exposing the mixture to photon radiation is disclosed. These polymer compositions are useful as thin film dielectrics in electronic applications such as multichip modules, integrated circuits and printed circuit boards.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.