Electricity: conductors and insulators – Boxes and housings – Hermetic sealed envelope type
Patent
1993-03-04
1995-02-28
Picard, Leo P.
Electricity: conductors and insulators
Boxes and housings
Hermetic sealed envelope type
361752, H05K 506
Patent
active
053939310
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.
REFERENCES:
patent: 3904262 (1975-09-01), Cutchaw
patent: 4159221 (1979-06-01), Schuessler
patent: 4920454 (1990-04-01), Stopper et al.
patent: 5025114 (1991-06-01), Braden
Horgan Christopher
Photmetrics, Ltd.
Picard Leo P.
Shapiro Herbert M.
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