Patent ID: 8350159
Filing Date: 2013-01-08
Classification: G11B,H05K,Y10T

Abstract:
1. A printed circuit board comprising: a metal support substrate; a base insulating layer arranged to have a body region formed on said metal support substrate and an auxiliary region formed to project toward the outside of said metal support substrate; a first write wiring trace provided to continuously extend on said body region and said auxiliary region of said base insulating layer; a first read wiring trace, a second read wiring trace and a second write wiring trace provided to extend on said body region of said base insulating layer; a first cover insulating layer provided on said body region of said base insulating layer to cover a portion of said first write wiring trace, said first read wiring trace, said second read wiring trace and the second write wiring trace on said body region of said base insulating layer; and a second cover insulating layer provided on said auxiliary region of said base insulating layer to cover a portion of said first write wiring trace on said auxiliary region of said base insulating layer, wherein said second write wiring trace is provided at a position closer to said auxiliary region than to said first and second read wiring traces, and said base insulating layer is bent such that said body region and said auxiliary region overlap each other to cause the portion of said first write wiring trace on said auxiliary region to be opposite to a portion of said second write wiring trace with said first and second cover insulating layers sandwiched therebetween.