Patent ID: 6737589
Filing Date: 2004-05-18
Classification: H05K

Abstract:
A flexible printed wiring board comprising:a flexible electrically insulating substrate having first and second major surfaces and including a plurality of conductive patterns; a first electrically conductive pattern including a plurality of conductive strips arranged in parallel with each other and provided on said first major surface of said electrically insulating substrate; a second electrically conductive pattern including a plurality of conductive strips arranged in parallel with each other and provided on said second major surface of said electrically insulating substrate; a first flexible electrically insulating cover provided on said first major surface of said electrically insulating substrate such that said first conductive pattern is covered with said first flexible electrically insulating cover; and a second flexible electrically insulating cover provided on said second major surface of said electrically insulating substrate such that said second conductive pattern is covered with said second flexible electrically insulating cover; wherein all of said plurality of conductive patterns, including said first and second conductive patterns, are situated asymmetrically on a side of a geometrical center line and a neutral stress line when viewed in the thickness direction of said flexible printed wiring board, such that said side is an inner side when said flexible printed wiring board is bent.