Patent ID: 11929298
Assignee: INFINEON TECHNOLOGIES AG
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 22:
23. A method of producing a molded semiconductor package, the method comprising:
embedding a semiconductor die in a mold compound;
thermally coupling a first heat spreader to a first side of the semiconductor die, the first heat spreader partly embedded in the mold compound; and
thermally coupling a second heat spreader to a second side of the semiconductor die opposite the first side, the second heat spreader partly embedded in the mold compound,
wherein thermally coupling the first heat spreader to the first side of the semiconductor die comprises:
before embedding the semiconductor die in the mold compound, attaching the first heat spreader to the first side of the semiconductor die or to a metal block attached to the first side of the semiconductor die; and
after embedding the semiconductor die in the mold compound, removing the mold compound from the at least one heat dissipative structure of the first heat spreader,
wherein the first heat spreader comprises at least one heat dissipative structure protruding from a side of the first heat spreader uncovered by the mold compound and facing away from the semiconductor die,
wherein the mold compound is configured to channel a fluid over the at least one heat dissipative structure in a direction parallel to the first side of the power semiconductor die.