Patent ID: 11948868
Assignee: STMICROELECTRONICS S.R.L.
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A method, comprising:
forming a plurality of first recesses at a first surface of a leadframe; and
forming a plurality of second recesses at a second surface of the leadframe, the second surface being opposite the first surface, the plurality of second recesses overlapping portions of the plurality of first recesses, wherein forming the plurality of second recesses forms a plurality of leads and a die pad of the leadframe, wherein the plurality of leads include base portions and upper portions, the upper portions extending beyond the base portions in a direction that extends between adjacent leads of the plurality of leads, the base portions of the plurality of leads extending beyond the upper portions toward the die pad, the die pad including a plurality of protrusions that are spaced apart from each other by a plurality of third recesses of the die pad, respectively, the base portions of the plurality of leads facing the plurality of third recesses.