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Title:
SEMICONDUCTOR DEVICE
Document Type and Number:
Japanese Patent JP2020004475
Kind Code:
A
Abstract:
To provide a semiconductor device that can operate stably even if a transistor is a depletion type.SOLUTION: A semiconductor device of one embodiment of the invention disclosed has: a first transistor that has a function of supplying a first potential to first wiring; a second transistor that has a function of supplying a second potential to the first wiring; a third transistor that has a function of supplying a third potential for turning on the first transistor to a gate of the first transistor, and then stopping the supply of the third potential; a fourth transistor that has a function of supplying a second potential to the gate of the first transistor; and a first circuit that has a function of generating a second signal obtained by giving an offset to a first signal. The second signal is inputted to a gate of the fourth transistor. A minimum value of the second signal is less than the second potential.SELECTED DRAWING: Figure 1

Inventors:
UMEZAKI ATSUSHI
Application Number:
JP2019139035A
Publication Date:
January 09, 2020
Filing Date:
July 29, 2019
Export Citation:
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Assignee:
SEMICONDUCTOR ENERGY LAB CO LTD
International Classes:
G11C19/28; G09G3/20; G09G3/3225; G09G3/3266; G09G3/3275; G09G3/36; H01L29/786; H03K19/0175; H03K19/094; G02F1/167
Domestic Patent References:
JPH11502355A1999-02-23
JP2008506278A2008-02-28
JP2008089874A2008-04-17
JP2004266817A2004-09-24
JP2008009418A2008-01-17
Foreign References:
WO1997025716A11997-07-17
US6064713A2000-05-16
WO2005104372A12005-11-03
US20070273426A12007-11-29
US20040155698A12004-08-12
US20070296660A12007-12-27



 
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