Patent ID: 7932470
Filing Date: 2011-04-26
Classification: H01L,H05K

Abstract:
1. A printed wiring board group that comprises a plurality of printed wiring boards having a wiring pattern of a large number of wires composed of a conductive metal on a surface of an insulating film, wherein a difference (ΔΩ−AB) between an average electric resistance (A-ave.) of wires formed in one printed wiring board (A) and an average electric resistance (B-ave.) of wires formed in a printed wiring board (B) adjacent to the printed wiring board (A) is within a range of ±5% of an average electric resistance (AB-ave.) of the wires of the printed wiring board (A) and the printed wiring board (B), and a difference (ΔΩ−ab) between an electric resistance (a-