Active solid-state devices (e.g. – transistors – solid-state diode – Non-single crystal – or recrystallized – semiconductor... – Field effect device in non-single crystal – or...
Reexamination Certificate
2005-04-05
2005-04-05
Cao, Phat X. (Department: 2814)
Active solid-state devices (e.g., transistors, solid-state diode
Non-single crystal, or recrystallized, semiconductor...
Field effect device in non-single crystal, or...
C257S069000, C257S072000
Reexamination Certificate
active
06875999
ABSTRACT:
The absolute value of the threshold voltage of a P-channel TFT is reduced by making its channel length shorter than that of an N-channel TFT by at least 20% to thereby approximately equalize the threshold voltage absolute values of those TFTs.
REFERENCES:
patent: 4942441 (1990-07-01), Konishi et al.
patent: 5148244 (1992-09-01), Iwasaki
patent: 5153702 (1992-10-01), Aoyama et al.
patent: 5243202 (1993-09-01), Mori et al.
patent: 5250931 (1993-10-01), Misawa et al.
patent: 5430320 (1995-07-01), Lee
patent: 5514879 (1996-05-01), Yamazaki
patent: 5545571 (1996-08-01), Yamazaki et al.
patent: 5616935 (1997-04-01), Koyama et al.
patent: 5877513 (1999-03-01), Koyama et al.
patent: 5899709 (1999-05-01), Yamazaki et al.
patent: 6124603 (2000-09-01), Koyama et al.
patent: 6492685 (2002-12-01), Koyama et al.
patent: 63-261880 (1988-10-01), None
patent: 04-025076 (1992-01-01), None
patent: 0061154 (1992-02-01), None
patent: 04-061154 (1992-02-01), None
patent: 04-179267 (1992-06-01), None
patent: 04-290467 (1992-10-01), None
patent: 05-291575 (1993-11-01), None
Koyama Jun
Takemura Yasuhiko
Cao Phat X.
Doan Theresa T.
Robinson Eric J.
Robinson Intellectual Property Law Office P.C.
Semiconductor Energy Laboratory Co,. Ltd.
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