Housing for containing a fragile element such as a logic circuit

Details Housing for containing a fragile element such as a logic circuit Housing for containing a fragile element such as a logic circuit

1994-04-21

1999-05-11

Ledynh, Bot L.

Electricity: conductors and insulators

Boxes and housings

Hermetic sealed envelope type

150131, 150147, 206449, 220 402, 361684, 361737, H05K5/00;1/14

Patent

active

RE0362085

ABSTRACT:
A housing designed to contain a logic circuit (15) comprising two shells (11a, 11b) each including a welding area (17a, 17b) having an appropriate geometry permitting ultrasonic welding, such that when both shells are assembled before a welding phase, they are shifted along a vertical axis (20). The supporting plate (13) comprises a mounting ear (23) while the shells comprise a receptacle (33a, 33b). During the welding phase, there is no concomitant contact between any of the upper face (26) and lower face (27) of the ear (23) and the corresponding bearing faces (34a, 34b) of the receptacles, owing to a shift (21). The shift is reduced and the concomitant contact takes place between the bearing faces (34a, 34b) of the receptacles and each of the upper and lower faces (26, 27) of the ear (23) only when the welding phase is completed.

REFERENCES:
patent: 4141400 (1979-02-01), Mangan
patent: 4450024 (1984-05-01), Haghiri-Tehrani et al.
patent: 4589547 (1986-05-01), Stewart et al.
patent: 4617216 (1986-10-01), Haghiri-Tehrani et al.
patent: 4758689 (1988-07-01), Nakao et al.
patent: 4852736 (1989-08-01), Kojima et al.
patent: 4918299 (1990-04-01), Ohmori

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