Semiconductor device manufacturing: process – Formation of electrically isolated lateral semiconductive... – Grooved and refilled with deposited dielectric material
Reexamination Certificate
2009-08-25
2011-11-01
Deo, Duy (Department: 1713)
Semiconductor device manufacturing: process
Formation of electrically isolated lateral semiconductive...
Grooved and refilled with deposited dielectric material
C438S425000, C438S670000, C438S671000, C438S672000
Reexamination Certificate
active
08048762
ABSTRACT:
A manufacturing method for a semiconductor device includes: forming a first layer on a member to be etched; forming a first hard mask that includes a first hard mask pattern, in the first layer; forming a second layer on the first hard mask and on an exposed surface of the member to be etched; removing by selective etching the second layer to form a side wall core that includes a core pattern; forming side wall spacers on side walls of the side wall core; and using the side wall spacers and the first hard mask to remove by etching the member to be etched.
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Deo Duy
Elpida Memory Inc.
Young & Thompson
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