Patent ID: 11887959
Assignee: STMICROELECTRONICS S.R.L.
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 14:
15. A method of manufacturing semiconductor devices, comprising:
arranging a semiconductor die onto a support substrate and onto proximal portions of one or more electrically-conductive leads arranged around the support substrate such that the electrically-conductive leads have respective proximal portions facing toward the support substrate and respective distal portions facing away from the support substrate, wherein the semiconductor die comprises a set of bonding pads at a front surface thereof which is opposed to the support substrate;
forming a layer of laser-activatable material on said semiconductor die and said electrically-conductive leads;
directing laser radiation onto said layer of laser-activatable material to pattern a set of laser-activated formations, wherein patterning said set of laser-activated formations includes:
i) patterning first laser-activated vias extending between said set of bonding pads at said front surface of the semiconductor die and a front surface of said layer of laser-activatable material,
ii) patterning second laser-activated vias to have an oval cross-section and to extend between said distal portions of said electrically-conductive leads and the front surface of said layer of laser-activatable material, and
iii) patterning laser-activated lines extending at said front surface of said layer of laser-activatable material and connecting selected first laser-activated vias to selected second laser-activated vias; and

depositing a metallic layer onto said first laser-activated vias, said second laser-activated vias and said laser-activated lines to provide respective first electrically-conductive vias, second electrically-conductive vias and electrically-conductive lines.