Radiation-sensitive coating composition
US4656116A · kind A · utility
23Cited by
7References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 4, 1984 |
| Grant date | Apr 7, 1987 |
| Priority date | — |
| Expiry date | Oct 4, 2004 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S430/128
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Polyimides of aromatic tetracarboxylic acid derivatives and aromatic diamines where both ortho-positions relative to a phenylene radical bonded to an imide group of the polymer are substituted by alkyl groups can be radiation-crosslinked with organic chromophoric polyazides. Solutions of said polyimides and polyazides in organic solvents can be used as radiation-sensitive coating compositions for, for example, preparing insulating and protective films and in particular for producing printed circuits and integrated circuits.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.