Electrical access to a hermetically sealed chamber using a printed circuit board
US5393931A · kind A · utility
17Cited by
4References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 4, 1993 |
| Grant date | Feb 28, 1995 |
| Priority date | — |
| Expiry date | Mar 4, 2013 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N23/51
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A vacuum chamber housing a cooled CCD for a CCD camera has a hermetic seal provided by a closed loop pattern on the surface of a laminate, printed circuit board having subteranean conductor traces. Electrical access to the CCD is provided, via the traces, by a universal pattern of pivouts subsets of which correspond to the pin patterns of different CCDs. Large numbers of pin connection patterns are achieved by this technique without leaks. A single board embodiment and a mother-daughter board embodiment are described.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.