Semiconductor device manufacturing: process – Making field effect device having pair of active regions... – Having insulated gate
Reexamination Certificate
2007-04-03
2007-04-03
Sarkar, Asok Kumar (Department: 2891)
Semiconductor device manufacturing: process
Making field effect device having pair of active regions...
Having insulated gate
C257SE21008
Reexamination Certificate
active
10999568
ABSTRACT:
Disclosed is a method of forming a capacitor of a semiconductor device which can secure a desired leakage current characteristic while securing a desired charging capacitance. The inventive method of forming a capacitor of a semiconductor device comprises steps of: forming a bottom electrode on a semiconductor substrate with a storage node contact so that the bottom electrode is connected with the storage node contact; plasma-nitrifying the bottom electrode to form a first nitrification film on the surface of the bottom electrode; forming a LaTbO dielectric film on the bottom electrode including the first nitrification film; plasma-nitrifying the LaTbO dielectric film to form a second nitrification film on the surface of the LaTbO dielectric film; and forming a top electrode on the LaTbO dielectric film including the second nitrification film.
REFERENCES:
patent: 04202012 (1992-07-01), None
patent: 07017763 (1995-01-01), None
Hynix / Semiconductor Inc.
Ladas & Parry LLP
Sarkar Asok Kumar
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