Hermetic case for electronic circuit equipment

Details Hermetic case for electronic circuit equipment Hermetic case for electronic circuit equipment

1995-03-27

1996-03-05

Picard, Leo P.

Electricity: electrical systems and devices

Housing or mounting assemblies with diverse electrical...

For electronic systems and devices

361758, 361796, 361799, 174 523, H05K 500

Patent

active

054972906

ABSTRACT:
An electronic circuit equipment including a substantially box-shaped case body 30 for defining a sealed interior space therein and an electronic circuit board 11 having a plurality of electronic components 12 mounted thereon. The case body comprises a pair of cup-shaped sections 30a clamped together at their opposite ends, and sandwiching between them the circuit board, surrounded and sealingly enclosed by a gas-impermeable flexible sheet 32. A vent hole 20 is provided in one of the sections 30a such that the sheet 32 flexes to absorb pressure fluctuations, and prevents the circuit board from bending.

REFERENCES:
patent: 3989333 (1976-11-01), Cauldwell
patent: 4145588 (1979-03-01), Orcutt
patent: 4420652 (1983-12-01), Ikeno
patent: 4424404 (1984-01-01), Moore et al.
patent: 4460102 (1984-07-01), Barringer
patent: 4474215 (1984-10-01), Richter et al.
patent: 4890764 (1990-01-01), Rossini
patent: 5001316 (1991-03-01), Salaman
IBM Technical Disclosure Bulletin, "Chip Joining Both Sides of Substrates Simultaneously", C. T. Rogers, vol. 13, No. 2, p. 396, Jul. 1970.

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