Semiconductor device manufacturing: process – Chemical etching – Combined with coating step
Reexamination Certificate
2005-02-08
2005-02-08
Norton, Nadine G. (Department: 1765)
Semiconductor device manufacturing: process
Chemical etching
Combined with coating step
C438S697000, C438S700000, C438S704000, C438S705000, C438S745000
Reexamination Certificate
active
06852634
ABSTRACT:
A method of making a semiconductor device10by forming a first dielectric layer140on a substrate, etching through the first dielectric layer to form a trench150having a channel region135on a sidewall160of the trench, and laterally removing a portion of the first dielectric layer adjacent to the sidewall of the trench above the channel region for defining a source region280of the semiconductor device.
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Jackson Kevin B.
Norton Nadine G.
Semiconductor Components Industries L.L.C.
Stipanuk James J.
Tran Binh X.
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