Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
August 2, 2022
Patent Application Number
17041037
Date Filed
March 20, 2019
Patent Citations
Patent Citations Received
Patent Primary Examiner
A memory device having long data retention time and high reliability is provided. The memory device includes a driver circuit and a plurality of memory cells, the memory cell includes a transistor and a capacitor, and the transistor includes a metal oxide in a channel formation region. The transistor includes a first gate and a second gate, and in a period during which the memory cell retains data, negative potentials are applied to the first gate and the second gate of the transistor.
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