Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
September 3, 2019
Patent Application Number
15891583
Date Filed
February 8, 2018
Patent Citations Received
Patent Primary Examiner
Patent abstract
It is an object to provide an oxide semiconductor which is suitable for use in a semiconductor device. Alternatively, it is another object to provide a semiconductor device using the oxide semiconductor. Provided is a semiconductor device including an In—Ga—Zn—O based oxide semiconductor layer in a channel formation region of a transistor. In the semiconductor device, the In—Ga—Zn—O based oxide semiconductor layer has a structure in which crystal grains represented by InGaO3(ZnO)m (m=1) are included in an amorphous structure represented by InGaO3(ZnO)m (m>0).
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