Patent ID: 6890800

Claim:
A method for manufacturing a one side molded type semiconductor device that comprises a ceramic multilayer board having a surface and a rear face, on the surface an active component and a passive component being mounted and the surface being sealed with a resin, and on the rear face electrodes for connecting to outside being exposed, comprising the steps of: attaching the rear face of the board to a resin film with an adhesive layer; mounting the board into a mold having a cavity with the resin film side down; and closing the mold and filling a sealing resin into the cavity, so that the surface of the board with the elements mounted thereon is sealed with the sealing resin and the sealing resin is molded so as to extend beyond an edge of the board to be flush with respect to the rear face of the board, surround a periphery of the board and form a cross-section in a rectangular shape, wherein, during the step of attaching the board to the adhesive layer of the resin film, a metal frame member also is attached to the resin film, and a plurality of the boards are attached within the frame member with a predetermined interval therebetween.