Semiconductor device manufacturing: process – Making field effect device having pair of active regions... – Having insulated gate
Reexamination Certificate
2006-11-30
2010-02-09
Kebede, Brook (Department: 2894)
Semiconductor device manufacturing: process
Making field effect device having pair of active regions...
Having insulated gate
C438S386000, C257SE27092, C257SE21396
Reexamination Certificate
active
07659163
ABSTRACT:
A method for forming a semiconductor device is provided. The method includes providing a substrate having a plurality of protrusions projecting from the substrate; forming a silicon layer over the substrate and each protrusion; performing an anisotropic etching to transfer the silicon layer into a silicon spacer positioned on a side wall of each protrusion; forming an oxide layer over the silicon spacer; and etching the substrate to form a recess on the substrate by using the oxide layer as a mask.
REFERENCES:
patent: 7005698 (2006-02-01), Lin et al.
patent: 2006/0270176 (2006-11-01), Lee et al.
Wu Chih-Huang
Yang Chien-Jung
Ingrassia Fisher & Lorenz P.C.
Kebede Brook
Nanya Technology Corp.
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