Polyimide containing silicones as protective coating on semiconductor device
US4030948A · kind A · utility
35Cited by
2References
9Claims
0Family size
Inventor
Key dates
| Filing date | Jul 21, 1975 |
| Grant date | Jun 21, 1977 |
| Priority date | — |
| Expiry date | Jul 21, 1995 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31721
- WIPO fieldSemiconductors
- WIPO sectorElectrical engineering
Abstract
A copolymer which is the reaction product of a tetracarboxylic acid dianhydride, and organic diamine and a di(aminoalkyl) poly siloxane where the di(aminoalkyl) poly siloxane constitutes 18 - 45 mole percent of the total amine requirement of the polymer and is applicable as a conformal protective coating for electronic devices.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.