Stacked electronic device capable of retaining an analog potential
AssigneeSemiconductor Energy Laboratory Co., Ltd.
InventorsTakayuki Ikeda, Yoshiyuki Kurokawa
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Abstract
An electronic device applicable to an artificial neuron network. The electronic device includes a first circuit, a second circuit, and first to sixth wirings. The first circuit includes a first transistor, a second transistor, and a capacitor. The second circuit includes a third transistor. A gate of the third transistor is electrically connected to the third wiring. The capacitor capacitively couples the third wiring and the gate of the second transistor. The first circuit is capable of storing a weight as an analog value. The first transistor is typically an oxide semiconductor transistor.
Claims5
An electronic device comprising:
- a circuit comprising a first transistor, a second transistor, and a capacitor,
- wherein a weight value is input to the capacitor through the first transistor,
- wherein an input value is input to the circuit,
- wherein an output value based on the weight value and the input value is output through the second transistor,
- wherein the first transistor is stacked over the second transistor,
- wherein the capacitor is stacked over the first transistor,
- wherein the first transistor comprises:
- a first gate electrode functioning as a backgate electrode;
- a channel formation region over the first gate electrode, the channel formation region comprising an oxide semiconductor;
- and
- a second gate electrode over the channel formation region, the second gate electrode functioning as a front gate electrode,
- wherein the first gate electrode and the second gate electrode of the first transistor overlaps with the second transistor, and
- wherein the first gate electrode and the second gate electrode of the first transistor overlaps with the capacitor.
Dependencies are inferred from the claim text.