Patent ID: 7292448
Filing Date: 2007-11-06
Classification: H05K,Y10T

Abstract:
1. A circuit substrate comprising: a first rigid substrate having a plurality of land portions located at a predetermined interval on one surface; a second rigid substrate having a plurality of second land portion located at a predetermined interval on one surface; and a flexible wiring board sandwiched by said first and second rigid substrates and which has a plurality of third land portions corresponding to said plurality of first land portions on one surface and a plurality of fourth land portions corresponding to said plurality of second land portions on the other surface, wherein said plurality of second land portions and said plurality of fourth land portions are displaced from each other relative to said plurality of first land portions and said plurality of third land portions and at least part of said plurality of first land portions and said plurality of third land portions and at least part of said plurality of second land portions and said plurality of fourth land portions are electrically connected to each other, respectively; wherein said first rigid substrate, said second rigid substrate and said flexible wiring board have positioning holes to properly position said plurality of first land portions and said plurality of third land portions and to properly position said plurality of second land portions and said plurality of fourth land portions, respectively.