Etching a substrate: processes – Nongaseous phase etching of substrate – Using film of etchant between a stationary surface and a...
Reexamination Certificate
2007-06-26
2007-06-26
Goudreau, George A. (Department: 1763)
Etching a substrate: processes
Nongaseous phase etching of substrate
Using film of etchant between a stationary surface and a...
C216S017000, C216S039000, C438S692000, C438S928000
Reexamination Certificate
active
11163989
ABSTRACT:
A wafer comprising a front surface and a back surface is provided. The wafer further includes a front pattern on the front surface, the front pattern having a plurality of holes. A low-viscosity fluid is formed on the front surface and filled into the holes. Following that, a high-viscosity fluid is formed and filled into the holes by diffusion.
REFERENCES:
patent: 6331449 (2001-12-01), Ohsumi
patent: 6391800 (2002-05-01), Redd et al.
patent: 62-132343 (1987-06-01), None
patent: 62-299071 (1987-12-01), None
patent: 03-101128 (1991-04-01), None
patent: 05-109679 (1993-04-01), None
patent: 07-333854 (1995-12-01), None
Goudreau George A.
Hsu Winston
Touch Micro-System Technology Inc.
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