Semiconductor device manufacturing: process – Chemical etching – Liquid phase etching
Reexamination Certificate
2008-05-13
2008-05-13
Wilczewski, M. (Department: 2822)
Semiconductor device manufacturing: process
Chemical etching
Liquid phase etching
C438S751000, C438S763000, C438S787000
Reexamination Certificate
active
11326547
ABSTRACT:
A method for manufacturing a low temperature removable silicon dioxide hard mask for patterning and etching is provided, wherein tetra-ethyl-ortho-silane (TEOS) is used to deposit a silicon dioxide hard mask.
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Haselden Barbara
Lee Tai-Peng
MacPherson Kwok & Chen & Heid LLP
ProMos Technologies Pte. Ltd.
Shenker Michael
Wilczewski M.
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