Patent ID: 8592686
Filing Date: 2013-11-26
Classification: H05K,Y10T

Abstract:
1. A rigid-flexible board wherein a rigid board and a flexible board are laminated integrally via an insulating layer so that a vertical circuit area penetrating through said insulating layer can connect electrically a horizontal circuit areas area of said rigid board and a horizontal circuit area of said flexible board, wherein: said rigid board is a multilayered circuit rigid board with three or more circuit layers; said vertical circuit area is a conductive bump which is positioned at said horizontal circuit area of said flexible board and which is pressed against said horizontal circuit area of said rigid board so that the forefront of said conductive bump is plastic-deformed through said insulating layer; and said flexible board comprises a protective film covering said horizontal circuit area of said flexible board, said protective film having a first portion embedded in said insulating layer and a second portion exposed from said insulating layer, edges of said protective film being disposed within a range defined by edges of said horizontal circuit area of said flexible board; and wherein the protective film is in contact with said horizontal circuit area of said flexible board.