Patent ID: 7019221
Filing Date: 2006-03-28
Classification: H05K,Y02P

Abstract:
1. A printed wiring board comprising a first printed wiring board and at least one second printed wiring board composed of a different material from a material of which said first printed wiring board is composed; said second printed wiring board being fixed in at least a part of said first printed wiring board through an electrical conductor so that wirings of said first and second printed wiring boards are electrically connected to each other and said first and second printed wiring boards are integral with each other to thereby form a single printed wiring board; the printed wiring board further comprising a third printed wiring board being fixed in at least a part of said second printed wiring board through an electrical conductor so that wirings of said second and third printed wiring boards are electrically connected to each other and said second and third printed wiring boards are integral with each other to thereby form a single printed wiring board.