Laser wire bonding for wire embedded dielectrics to integrated c

Details Laser wire bonding for wire embedded dielectrics to integrated c Laser wire bonding for wire embedded dielectrics to integrated c

1997-08-14

1999-09-21

Picardat, Kevin M.

Semiconductor device manufacturing: process

Coating with electrically or thermally conductive material

To form ohmic contact to semiconductive material

438111, 21912163, 21912164, H01L 2144

Patent

active

059566078

ABSTRACT:
A method and apparatus for connecting a lead of a lead frame to a contact pad of a semiconductor chip using a laser or other energy beam is herein disclosed. The lead may be wire bonded to the contact pad by heating the ends of a wire until the wire fuses to the contact pad and lead or an energy-fusible, electrically-conductive material may be used to bond the ends of the wire to the contact pad and lead. In addition, this invention has utility for both conventional lead frame/semiconductor chip configurations and lead-over-chip configurations. In addition, with a lead-over-chip configuration, the lead may be directly bonded to the contact pad with a conductive material disposed between the lead and the contact pad.

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