Active solid-state devices (e.g. – transistors – solid-state diode – Combined with electrical contact or lead – Of specified material other than unalloyed aluminum
Reexamination Certificate
2005-04-05
2005-04-05
Hu, Shouxiang (Department: 2811)
Active solid-state devices (e.g., transistors, solid-state diode
Combined with electrical contact or lead
Of specified material other than unalloyed aluminum
C257S762000, C257S765000, C257S774000
Reexamination Certificate
active
06876079
ABSTRACT:
The present invention is to improve yield and reliability in a wiring step of a semiconductor device. When an Al wiring on an upper layer is connected through an connection pillar onto an Al wiring on a lower layer embedded in a groove formed on an interlayer insulation film, a growth suppression film having an opening whose width is wider than that of the Al wiring is formed on the interlayer insulation film and the Al wiring. In this condition, Al and the like are grown by a selective CVD method and the like. Accordingly, the connection pillar is formed on the Al wiring within the opening, in a self-matching manner with respect to the Al wiring.
REFERENCES:
patent: 5783485 (1998-07-01), Ong et al.
patent: 6063703 (2000-05-01), Shinriki et al.
patent: 6215189 (2001-04-01), Toyoda et al.
patent: 20020068427 (2002-06-01), Guo et al.
patent: 08213391 (1996-08-01), None
patent: 08339973 (1996-12-01), None
Hu Shouxiang
Sonnenschein Nath & Rosenthal LLP
Sony Corporation
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