Electricity: conductors and insulators – Conduits – cables or conductors – Preformed panel circuit arrangement
Patent
1989-08-21
1990-11-27
Nimmo, Morris H.
Electricity: conductors and insulators
Conduits, cables or conductors
Preformed panel circuit arrangement
174 36, 361414, H05K 100
Patent
active
049737996
ABSTRACT:
A circuit board for mounting a CPU for controlling an image processing apparatus, comprising a multilayered circuit board for mounting the CPU, and a shield layer for shielding the multilayered circuit board without connecting the shield layer to the circuits of the board. The circuits of the multilayered circuit board are produced by a printing or an electrolytic plating method or an electroless plating method.
REFERENCES:
patent: 3417294 (1968-12-01), Steidlitz
patent: 3680005 (1972-07-01), Jorgensen et al.
patent: 4498122 (1985-02-01), Rainal
patent: 4554405 (1985-11-01), Varker
patent: 4675788 (1987-06-01), Breitling et al.
patent: 4743710 (1988-05-01), Shieber et al.
patent: 4754371 (1988-06-01), Nitta et al.
patent: 4801489 (1989-01-01), Nakagawa et al.
patent: 4816616 (1989-03-01), Jones
Asakawa Minoru
Koseki Yasufumi
Soma Utami
Konica Corporation
Nimmo Morris H.
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