Patent ID: 7059039
Filing Date: 2006-06-13
Classification: H05K,Y10S,Y10T

Abstract:
1. A method for producing printed wiring boards, comprising the steps of: forming a first wiring pattern on a surface of a first releasable supporting sheet; forming a second wiring pattern on a surface of a second releasable supporting sheet; placing the first releasable supporting sheet on one surface of a first adhesive insulator sheet having holes filled with a first conductive material, and embedding the first wiring pattern in the first adhesive insulator sheet so that the first wiring pattern is connected with the first conductive material; placing the second releasable supporting sheet on the other surface of the first adhesive insulator sheet, and embedding the second wiring pattern in the first adhesive insulator sheet so that the second wiring pattern is connected with the first conductive material; and removing the first and second releasable supporting sheets from the first adhesive insulator sheet.