Patent ID: 6893898

Claim:
A method of manufacturing a semiconductor device, comprising the steps of: providing a lead frame, the lead frame having first leads and second leads arranged adjacent to first leads side-by-side, each lead having first and second end portions, first external connections being formed on the first leads and second external connections being formed on the second leads and positioned on one end side of the leads with respect to the first external connections, and providing a molding die having a first mold and a second mold, the first mold having on a first mating surface a first clamp portion and a cavity contiguous to the first clamp portion, the second mold having a second clamp portion opposed to the first clamp portion on a second mating surface opposed to the first mating surface; fixing first end portions of the first and second leads to a semiconductor chip; connecting a plurality of electrodes arranged on a main surface of the semiconductor chip electrically to first end portions of the first and second leads respectively; and sandwiching second end portions of the first and second leads between the first and second clamp portions and injecting resin into the cavity after the first and second external connections are placed in contact with a resin sheet disposed between the second end portions of the first and second leads and the second mating surface, to seal the semiconductor chip and the first and second leads with the resin.