Patent ID: 8978244
Filing Date: 2015-03-17
Classification: H05K,Y10T

Abstract:
1. A method for manufacturing a printed circuit board, comprising: providing a first substrate, the first substrate comprising a first electrically conductive layer and a first insulating layer, the first electrically conductive layer comprising an exposed portion and a laminating portion surrounding the exposed portion; providing a second substrate, the second substrate comprising an unwanted portion corresponding to the exposed portion and a preserving portion corresponding to the laminating portion; forming a first annular bump on the first insulating layer of the first substrate, the first annular bump extending along an imaginary boundary line of the exposed portion of the first substrate; forming a second annular bump on the second substrate, the second annular bump extending along an imaginary boundary line of the unwanted portion of the second substrate, the second annular bump corresponding to the first annular bump; providing a first adhesive layer which defines an opening therein; laminating the first substrate, the second substrate, and the first adhesive layer together to form a laminated structure, wherein the first adhesive layer is sandwiched between the first and second substrates, the exposed portion and the unwanted portion are exposed in the opening, and the second annular bump is in contact with the first annular bump; and removing the unwanted portion of the second substrate and defining a cavity in the laminated structure, the exposed portion being exposed in the cavity.