Patent ID: 7262083

Claim:
A method of manufacturing a semiconductor device, comprising the steps of: (a) providing a semiconductor chip, said semiconductor chip having a main surface and a plurality of salient electrodes formed on said main surface; (b) providing a wiring substrate, said wiring substrate having a thin film base formed by an insulator and also having a plurality of leads corresponding respectively to said plural salient electrodes of said semiconductor chip; and (c) bonding said plural salient electrodes to said plural leads respectively, wherein, in said wiring substrate provided in said step (b), the pitch of said plural salient electrodes is smaller than the pitch of said leads at the portions corresponding respectively to the plural salient electrodes, wherein said plural leads are fixed to said thin film base at their portions to be bonded to said salient electrodes, and wherein said step (c) includes a step of positioning said wiring substrate and said semiconductor chip to predetermined positions while keeping the two spaced apart from each other, a step of holding the portion of said wiring substrate located around an area where the bonding between said salient electrodes and said leads is performed, grippingly by means of a jig, while keeping the wiring substrate and the semiconductor chip spaced apart from each other, and a step of pushing said wiring substrate by said jig to bring said leads into contact with said salient electrodes.