Semiconductor device manufacturing: process – Coating with electrically or thermally conductive material – To form ohmic contact to semiconductive material
Reexamination Certificate
2006-02-14
2006-02-14
Dang, Trung (Department: 2823)
Semiconductor device manufacturing: process
Coating with electrically or thermally conductive material
To form ohmic contact to semiconductive material
C438S637000, C438S643000
Reexamination Certificate
active
06998339
ABSTRACT:
A method of forming a conductor wiring pattern comprises: forming a first insulating layer on a surface of a semiconductor wafer and also forming a second, photosensitive insulating resin layer thereon; light-exposing and developing the second insulating layer to form pattern grooves so that the first insulating layer is exposed at bottoms of the pattern grooves; forming a plating seed layer on the second insulating layer including inner surfaces of the pattern grooves and then forming a resist pattern on the seed layer except for portions of the pattern grooves; filling the pattern grooves with a conductor by an electrolytic plating using the seed layer as a power supply layer; and removing the resist pattern and also removing the seed layer exposed on the surface of the second insulating layer to form a wiring pattern consisting of conductors remaining in the pattern grooves.
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Dang Trung
Shinko Electric Industries Co. Ltd.
Staas & Halsey , LLP
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