METHOD FOR MANUFACTURING WIRING BOARD HAVING BUILT-IN ELECTRIC ELEMENT

PROBLEM TO BE SOLVED: To obtain a wiring board having a built-in electric element, excellent in reliability in connection between a built-in electric element and a wiring circuit layer provided on the wiring board. SOLUTION: A method for manufacturing the wiring board having a built-in electric component includes: a step of laminating a first resin precursor sheet having a cavity, a second resin precursor sheet having a conductor and arranged on one main surface side of the first resin precursor sheet and a third resin precursor sheet arranged on the other main surface side of the first resin precursor sheet in a state where the electric element having an electrode connected to the conductor is arranged in the cavity on the one main surface; and a step of forming the first, second and third resin precursor sheets into first, second and third insulation layers respectively by heating and shrinking the first, second and third resin precursor sheets, and fixing the electric element on the second and third insulation layers. COPYRIGHT: (C)2009,JPO&INPIT