FLEXIBLE PRINTED WIRING BOARD, METHOD OF MANUFACTURING THE SAME, AND ELECTRONIC DEVICE

摘要

PROBLEM TO BE SOLVED: To improve transmission loss which is a problem in a high-frequency zone signal transmission line by a differential transmission system including a ground layer coated with a conductive paste. SOLUTION: The flexible printed wiring board 1A includes: a signal layer 20 embedded between a base layer 10 and a cover layer 30; and a metal spatter film 33 coated with the cover layer 30 while covering the signal layer 20. A grand line 21 is conductively joined in a spot manner to the metal spatter film 33 via an opening (CH). COPYRIGHT: (C)2009,JPO&INPIT