Electrical access to a hermetically sealed chamber using a printed circuit board
AssigneePhotmetrics, Ltd.
InventorDerek P. Guenther
Life of this patent
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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.
Claims7
Apparatus including a printed circuit board having a first and second surface and a plurality of layers therein, said board including at least one subterranean conductive trace, said layers including metallized through connections for contacting said traces electrically at specified positions in a central area, said traces terminating in a plurality of positions at the edge of said board for permitting electrical connection thereto, said board including on each of said first and second surfaces thereof a closed seat encompassing said central area for mating with a housing for forming a sealed chamber, said apparatus also including a housing mounted on each of said closed seats for forming a sealed chamber, said chamber including a CCD array imaging device, said device having a pin arrangement for mating with said metallized through connections.
Dependencies are inferred from the claim text.