The 1st process which implements

摘要

PROBLEM TO BE SOLVED: To provide interboard connection technique of a laminated type wiring board where structure and manufacturing processes are simplified and narrow pitch of wiring is realized. ;SOLUTION: A plurality of board side electrodes 7 are arranged in face to face with each other in periperal parts of main surfaces of a plurality of wiring boards 1, 1' which are adjacent to each other in the widthwise direction. Trench parts 8 are arranged on side end surfaces of electrically insulating holding members 3 which fix the wiring boards 1, 1' in the edge direction at specified pitches, and conducting members 4 for interboard connection are buried in the trench parts 8. Consequently, a pair of the board side electrodes 7 which face with each other are electrically connected by using the conducting members 4 for interboard connection. That is, conducting members connecting the part between a pair of the wiring boards which face with each other interposing the insulating holding member 3 is formed by technique burying the conducting members 4 in the trench parts 8 arranged on the side end surface of the insulating holding member 3.;COPYRIGHT: (C)2000,JPO