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Patent Searching and Data


Title:
Display device
Document Type and Number:
Japanese Patent JP5982550
Kind Code:
B2
Abstract:
A manufacture process of a thin film transistor mounted on an EL display device is simplified. A thin film transistor is manufactured by stacking a first conductive film, an insulating film, a semiconductor film, an impurity semiconductor film, and a second conductive film; forming a first resist mask over the stacked films; performing first etching to form a thin-film stack body; performing second etching by side etching is conducted on the thin-film stack body to form a gate electrode layer; and forming a source and drain electrode layer and the like with use of a second resist mask. An EL display device is manufactured using the thin film transistor.

Inventors:
Hidekazu Miyairi
Shigeki Komori
Toshiyuki Isa
Atsushi Umezaki
Application Number:
JP2015200980A
Publication Date:
August 31, 2016
Filing Date:
October 09, 2015
Export Citation:
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Assignee:
Semiconductor Energy Laboratory Co., Ltd.
International Classes:
H01L27/32; G09F9/30; H01L29/786; H01L51/50; H05B33/14; H05B44/00
Domestic Patent References:
JP2001202035A
JP2003179069A
JP2001109405A
JP2003223119A
JP2001174844A
JP2008009372A
JP9160076A
JP11133455A
JP9033951A
JP2001188240A
JP64084669A
JP2009276758A
JP2009158941A
JP2009231828A
Foreign References:
US20050219433