Patent ID: 8501542

Claim:
A method for manufacturing a dual-face package which has an LSI chip sealed with a mold resin, and electrodes for external connections on both of a front face and a back face, the method comprising: unitarily forming a number of leadframes each having outer lead portions exposed as back-face electrodes at at least the back face; integrally forming front-face electrodes on at least some of the plurality of inner lead portions of the leadframe by drawing a portion of the leadframe; bonding LSI chips onto respective die pads of the leadframes, and connecting each of the LSI chips and the plurality of inner lead portions of corresponding one of the leadframes by wiring; carrying out batch sealing with a mold resin; and exposing head faces of the front-face electrodes, or bump electrodes connected to the respective head faces of the front-face electrodes at a surface of the mold resin so as to make the head faces or bump electrodes serve as electrodes for external connections to another substrate or element, followed by cutting for singulation.