Patent ID: 9548285
Date: 2017-01-17
CPC Classifications: H01L

Claim:
1. A method of manufacturing a semiconductor device comprising the steps of: (a) preparing a lead frame having an outer frame extending in a first direction, a tab suspension lead support portion which extends in a second direction perpendicular to the first direction and which is connected to the outer frame, a first tab suspension lead and a second tab suspension lead which extend from the tab suspension lead support portion in an opposite direction in the first direction, a first tab connected to the first tab suspension lead, a second tab connected to the second tab suspension lead, a plurality of first leads arranged in a periphery of the first tab, and a plurality of second leads arranged in a periphery of the second tab; (b) mounting a first semiconductor chip, which has a plurality of first bonding pads on its main surface, on the first tab, and mounting a second semiconductor chip, which has a plurality of second bonding pads on its main surface, on the second tab; (c) electrically connecting the plurality of first bonding pads to the plurality of first leads, and electrically connecting the plurality of second bonding pads to the plurality of second leads; (d) forming a first sealing body which covers the first semiconductor chip, the first tab, and the first tab suspension lead, and forming a second sealing body which covers the second semiconductor chip, the second tab, and the second tab suspension lead; and (e) separating the first tab suspension lead and the second tab suspension lead from the tab suspension lead support portion by pressing the tab suspension lead support portion positioned between the first sealing body and the second sealing body by using a jig, wherein the first sealing body has a substantially rectangular outer shape when seen in a plan view, and has a first side extending in the second direction, the second sealing body has a substantially rectangular outer shape when seen in a plan view, and has a second side extending in the second direction, the first tab suspension lead has a first narrow portion, and the first side of the first sealing body intersects the first narrow portion, and the second tab suspension lead has a second narrow portion, and the second side of the second sealing body intersects the second narrow portion.