Circuit board with a chip carrier and mounting structure connected to the chip carrier
US4750089A · kind A · utility
59Cited by
1References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 22, 1985 |
| Grant date | Jun 7, 1988 |
| Priority date | — |
| Expiry date | Nov 22, 2005 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P70/50
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A chip carrier is supported by a thermally conductive spacer block under its center, which provides mechanical connection to the circuit board. The external contact pads on the underside of the chip carrier are not bonded directly to the traces on the board, but instead are bonded to a connecting strip, i.e. a polymer layer having conductive traces thereon, and the traces on the connecting strip are bonded to traces on the board.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.