Patent ID: 6288343
Filing Date: 2001-09-11
Classification: H05K

Abstract:
A printed circuit board, comprising:a first layer with a top surface area, said first layer having a first stacked region, a second stacked region apart from the first stacked region, and a flexible connection part disposed between the first and second stacked regions and extending to the first stacked region and the second stacked regions and extending to the first stacked region and the second stacked region with selected width and length, wherein the entire top surface area of the first layer has a protective layer for preventing delamination and for protecting a conductive pattern layer laid for a signal transmission between the first stacked region and the second stacked region;a pair of second layers disposed apart on an upper surface of each of the first stacked region and the second stacked region of the first layer and having a first signal pattern layer on both surfaces of each of the second layers, wherein said first signal pattern layer of the second layer is electrically connected to the conductive pattern of the flexible connection part;a pair of upper metal layers disposed on respective upper surfaces of the second layer, the upper metal layer interposing a first insulating adhesive between the upper metal layer and the second layer;a pair of third layers disposed apart on a lower surface of each of the first and second stacked regions of the first layer and having a second signal pattern layer on both surfaces of each of the third layers; anda pair of lower metal layers disposed on respective lower surfaces of the third layers, the lower metal layer interposing a second insulating adhesive between the lower metal layer and the third layer.