Patent ID: 8934262
Filing Date: 2015-01-13
Classification: H05K,Y10T

Abstract:
1. A wiring board comprising: a first rigid wiring board including a first conductor and having an accommodation portion; a second rigid wiring board accommodated in the accommodation portion of the first rigid wiring board and including a second conductor electrically connected to the first conductor of the first rigid wiring board; a first insulation layer formed on a top surface of the first rigid wiring board and a top surface of the second rigid wiring board; and a second insulation layer formed on a bottom surface of the first rigid wiring board and a bottom surface of the second rigid wiring board, wherein the accommodation portion of the first rigid wiring board has a plurality of wall surfaces tapering in a continuous line from the top surface of the first rigid wiring board to the bottom surface of the first rigid wiring board on an opposite side of the top surface, and the second rigid wiring board has a plurality of side surfaces tapering in a continuous line such that the side surfaces of the second rigid wiring board substantially fit into the wall surfaces of the accommodation portion of the first rigid wiring board.