Semiconductor device manufacturing: process – Making field effect device having pair of active regions... – Having insulated gate
Reexamination Certificate
2011-08-02
2011-08-02
Thomas, Toniae M (Department: 2822)
Semiconductor device manufacturing: process
Making field effect device having pair of active regions...
Having insulated gate
C438S592000, C438S653000, C438S655000, C438S656000, C438S683000, C438S685000, C438S777000, C257SE21165, C257SE21168
Reexamination Certificate
active
07989281
ABSTRACT:
Provided is a method for manufacturing a dual gate in a semiconductor device. The method includes forming a gate insulating layer and a gate conductive layer on a semiconductor substrate, forming a diffusion barrier layer on the gate conductive layer, forming a barrier metal layer on the diffusion barrier layer, depositing a first gate metal layer on the barrier metal layer, forming a metal nitride barrier layer on a surface of the first gate metal layer by supplying nitrogen (N2) plasma on the first gate metal layer, forming a second gate metal layer on the metal nitride barrier layer, and forming a hard mask layer on the second gate metal layer.
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Hynix / Semiconductor Inc.
Thomas Toniae M
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