Patent ID: 11955456
Assignee: TEXAS INSTRUMENTS INCORPORATED
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 12:
13. An apparatus, comprising:
a packaged device having conductive leads and a thermal pad exposed from a mold compound, wherein the packaged device further comprises:
a first package substrate having a die mount surface;
a semiconductor die flip chip mounted to the first package substrate on the die mount surface, the semiconductor die having post connects coupled to the first package substrate by solder joints;
a second package substrate having the thermal pad positioned with the thermal pad over a backside surface of the semiconductor die; and
mold compound covering a portion of the first package substrate, a portion of the second package substrate, the semiconductor die, and the post connects, thermal pad having a surface exposed from the mold compound, wherein the second package substrate is freestanding within the package only attached to the mold compound, and wherein the first package substrate and the second package substrate comprise metal.