Laminar polymeric sheet
US5194316A · kind A · utility
42Cited by
0References
24Claims
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Assignee
Inventors
Key dates
| Filing date | Feb 26, 1991 |
| Grant date | Mar 16, 1993 |
| Priority date | — |
| Expiry date | Feb 26, 2011 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31725
- WIPO fieldSemiconductors
- WIPO sectorElectrical engineering
Abstract
A sheet laminate of polyimide and amorphous polyamide especially suitable for making anisotropically electrically conductive articles by laser abiation drilling followed by metal plating. Preferred polyimides include those derived from polymerization of 4,4'biphenyldianhydride and 4,4'-diaminobiphenylether or p-phenylenediamine. Preferred amorphous polyamides include those derived from condensation of terephthalic acid with isomers of trimethylhexamethylenediamine.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.