Electronic package with concave lead end faces
AssigneeTexas Instruments Incorporated
InventorsDolores Babaran Milo, Ernesto Pentecostes Rafael, Jr., John Carlo Cruz Molina
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Abstract
An electronic package includes an electronic component including terminals, a plurality of leads, at least some of the leads being electrically coupled to the terminals within the electronic package, and a mold compound covering the electronic component and partially covering the leads. Each of the leads include an exposed bottom face coplanar with a bottom surface of the mold compound and an exposed end face coplanar with one of a plurality of side surfaces of the mold compound. For at least some of the leads, the exposed end face includes a narrow portion forming a concave recess, the narrow portion being between top and bottom edges of the exposed end face.
Claims17
An electronic package comprising:
- an electronic component including terminals;
- a plurality of leads, at least some of the leads being electrically coupled to the terminals within the electronic package;
- and
- a mold compound covering the electronic component and partially covering the leads,
- wherein each of the leads include an exposed bottom face coplanar with a bottom surface of the mold compound and an exposed end face coplanar with one of a plurality of side surfaces of the mold compound, and
- wherein for at least some of the leads, the exposed end face includes an hourglass shape including a concave recess over a rectangular portion of a base metal of the plurality of leads.
A leadframe strip for an array of electronic packages comprising:
- a patterned base metal forming leads for each of the array of electronic packages;
- and
- a premold material filling a first partial etch of a first side of the base metal,
- wherein the patterned base metal forms rectangular base portions of the base metal at lead ends of the leads on a second side of the base metal,
- wherein each of the lead ends includes a second metal over the rectangular base portion of the lead end on the second side of the base metal, the second metal forming a narrow portion forming a concave recess on the rectangular base portion.
Dependencies are inferred from the claim text.