Semiconductor device manufacturing: process – Coating with electrically or thermally conductive material – To form ohmic contact to semiconductive material
Reexamination Certificate
2006-07-11
2006-07-11
Smith, Zandra V. (Department: 2822)
Semiconductor device manufacturing: process
Coating with electrically or thermally conductive material
To form ohmic contact to semiconductive material
C438S622000, C438S631000, C438S694000
Reexamination Certificate
active
07074702
ABSTRACT:
Disclosed are methods of manufacturing semiconductor devices, which may solve problems such as a short of upper wiring, etc., which are caused by a metal residue generated during chemical mechanical polishing of metallization of the semiconductor device, by depositing a predetermined insulating layer on the metal residue. The method may include forming a first insulating layer having an opening on a semiconductor substrate, depositing a metal layer on the first insulating layer to sufficiently fill the opening, planarizing the metal layer to expose the first insulating layer, forming a second insulating layer on the exposed first insulating layer and the metal layer, selectively etching and removing the second insulating layer to expose the metal layer, and forming a metallization layer on the metal layer.
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Donghu Electronics Co., Ltd.
Novacek Christy
Saliwanchik Lloyd & Saliwanchik
Smith Zandra V.
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