Semiconductor device manufacturing: process – Coating with electrically or thermally conductive material – To form ohmic contact to semiconductive material
Reexamination Certificate
2007-10-30
2010-06-01
Lindsay, Jr., Walter L (Department: 2812)
Semiconductor device manufacturing: process
Coating with electrically or thermally conductive material
To form ohmic contact to semiconductive material
C438S667000, C257SE21597, C257SE21641
Reexamination Certificate
active
07727887
ABSTRACT:
A first through via is electrically insulated from surrounding wafer substrate material. A second through via is not electrically insulated from the surrounding wafer substrate material. This configuration is advantageous when the non-insulated via serves as the path for either Vdd or GND. By not insulating the through via, a first supply voltage (Vdd or GND) is allowed to flow through the surrounding wafer substrate material thereby decreasing the resistance of the first supply voltage path.
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Christensen Todd Alan
Sheets, II John Edward
International Business Machines - Corporation
Lindsay, Jr. Walter L
Zehrer Matthew C.
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