Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Shunpei Yamazaki0
Kosei Noda0
Masashi Tsubuku0
Jun Koyama0
Date of Patent
February 10, 2015
0Patent Application Number
129026700
Date Filed
October 12, 2010
0Patent Citations Received
0
Patent Primary Examiner
Patent abstract
To reduce a leakage current of a transistor so that malfunction of a logic circuit can be suppressed. The logic circuit includes a transistor which includes an oxide semiconductor layer having a function of a channel formation layer and in which an off current is 1×10−13 A or less per micrometer in channel width. A first signal, a second signal, and a third signal that is a clock signal are input as input signals. A fourth signal and a fifth signal whose voltage states are set in accordance with the first to third signals which have been input are output as output signals.
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