Liquid crystal cells – elements and systems – Particular excitation of liquid crystal – Electrical excitation of liquid crystal
Reexamination Certificate
2005-06-28
2005-06-28
Ngo, Huyen (Department: 2871)
Liquid crystal cells, elements and systems
Particular excitation of liquid crystal
Electrical excitation of liquid crystal
C349S042000, C438S161000, C257S066000
Reexamination Certificate
active
06912019
ABSTRACT:
A method of making a semiconductor device, including the steps of forming, upon a substrate, a semiconductor film, an insulating film, and a conductive film. Part of the upper surface of the conductive film is covered with a resist pattern so that the semiconductor film protrudes from the edges of the resist pattern. Then, the conductive film is etched using the resist pattern as a mask to leave a patterned conductive film, whereby side wall additives of reaction byproducts are generated. Next, the insulating film is etched using the patterned conductive film and side wall additives as a mask, and the side wall additives are removed. Then, impurities are implanted in the semiconductor film using the patterned conductive film as a mask so that impurities transmit through the insulating film, which expose on both sides of the patterned conductive film after removing the side wall additives. Finally, the resist pattern is removed.
REFERENCES:
patent: 5534716 (1996-07-01), Takemura
patent: 5728592 (1998-03-01), Oki et al.
patent: 5763904 (1998-06-01), Nakajima et al.
patent: 5846885 (1998-12-01), Kamata et al.
patent: 6130119 (2000-10-01), Jinnai
patent: 6140162 (2000-10-01), Yeo
patent: 6146930 (2000-11-01), Kobayashi et al.
patent: 6255705 (2001-07-01), Zhang et al.
patent: 6359320 (2002-03-01), Yamazaki et al.
patent: 2002/0139982 (2002-10-01), Zhang et al.
patent: 355164077 (1980-12-01), None
patent: 411176803 (1999-07-01), None
patent: 02002170819 (2002-06-01), None
Fujitsu Limited
Greer, Burns & Crains Ltd.
Ngo Huyen
LandOfFree
Method of manufacturing a semiconductor device does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method of manufacturing a semiconductor device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of manufacturing a semiconductor device will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3487696