Method of making multi-layer printed wiring boards

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United States of America Patent

PATENT NO 4668332
SERIAL NO

06727634

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Abstract

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A multi-layer printed wiring board in which an internal board has a wiring pattern on both sides. Two conductive plates for establishing respective voltage planes are formed with a pattern of grooves to match the wiring pattern of the internal board. The internal board is then sandwiched to the two sides of the conductive plates, with the grooves registering with the wiring pattern, and with intermediate insulating layers. Further, insulated wiring patterns are formed on the exterior sides of the conductive plates together with through-holes through the assembly.

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Patent Owner(s)

Patent OwnerAddress
NEC TOPPAN CIRCLE SOLUTIONS INC2-2-27 YAESU CHUO-KU TOKYO 104-0028

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Asano, Toshiaki Tokyo, JP 19 348
Atarashi, Takashi Tokyo, JP 2 27
Ohnuki, Hidebumi Tokyo, JP 6 80
Yasui, Sunao Tokyo, JP 1 24

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