Patent ID: 7355124
Filing Date: 2008-04-08
Classification: H01L,H05K,Y10T

Abstract:
1. A multilayer wiring board, comprising: a plurality of wiring boards in which wiring layers and resin layers in each wiring board are alternately arranged in a laminated formation, wherein all the resin layers and the wiring layers, except a predetermined resin layer in the plurality of wiring boards, are separated in a cutting area and spaced between the plurality of wiring boards, wherein the predetermined resin layer is continuous in the cutting area, wherein said predetermined resin layer is a first outside resin layer which is arranged at outermost side among said resin layers, and wherein a second outside resin layer is arranged at opposite outermost side among said resin layers and has a raised portion in said cutting area between said plurality of wiring boards, and the raised portion covers an end face of at least one of other resin layers in the plurality of wiring boards.