Metal working – Method of mechanical manufacture – Electrical device making
Patent
1992-06-18
1994-07-19
Arbes, Carl J.
Metal working
Method of mechanical manufacture
Electrical device making
29846, 264 61, 428901, H05K 330
Patent
active
053296966
ABSTRACT:
An electronic device comprises a housing made of a polycarbonate resin, and a novel double-sided printed circuit board. The printed circuit board has one side embedded in the housing, and the other side exposed to the interior of the housing. A plurality of refractory electronic components are mounted onto one side of the printed circuit board and include a resistor and a capacitor. A plurality of lower refractory electronic components are mounted onto the other side of the housing and include a semiconductor integrated circuit, and a transformer. Preferably, an insulating layer is applied to cover the one side of the printed circuit board and the refractory electronic components. Also, a metal layer is applied to cover the insulating layer and the inner surface of the housing.
REFERENCES:
patent: 3934074 (1976-01-01), Evelove
patent: 4710419 (1987-12-01), Gregory
patent: 4772496 (1988-09-01), Maeda et al.
patent: 4811482 (1989-03-01), Moll
patent: 4843520 (1989-06-01), Nakatani et al.
patent: 5090122 (1992-02-01), Kitagawa
Hayashi Osamu
Morita Takeshi
Arbes Carl J.
Mitsubishi Denki & Kabushiki Kaisha
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