Patent ID: 9343451
Filing Date: 2016-05-17
CPC Classification: H01L

Claim Text:
1. A method of manufacturing a semiconductor device, comprising the steps of: (a) preparing a lead frame, in which a plurality of first regions is arranged in a matrix, the first region including a first chip mounting portion, a second chip mounting portion, and a first lead, (b) mounting a first semiconductor chip over an upper surface of the first chip mounting portion via a first conductive adhesive, (c) mounting a first metal plate to a first electrode pad of the first semiconductor chip and to the first lead via a second conductive adhesive, (d) heating the first conductive adhesive and the second conductive adhesive at a first temperature, (e) after step (d), cleaning the lead frame, (f) after step (e), applying a tape to a face opposite to a face, over which the first semiconductor chip is mounted, of the lead frame, (g) after step (f), mounting a second semiconductor chip over an upper surface of the second chip mounting portion via a third conductive adhesive, (h) after step (g), heating the third conductive adhesive at a second temperature, and (i) after step (h), forming a sealing body by collectively sealing a plurality of the first regions in the lead frame so as to cover the first semiconductor chip and the second semiconductor chip, wherein the second temperature is lower than the first temperature.