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Semiconductor device

專(zhuān)利號(hào)
US11888446B2
公開(kāi)日期
2024-01-30
申請(qǐng)人
SEMICONDUCTOR ENERGY LABORATORY CO., LTD.（JP Atsugi）
發(fā)明人
Kiyotaka Kimura; Takeya Hirose; Hidetomo Kobayashi; Takayuki Ikeda
IPC分類(lèi)
H03D7/14; H03D7/12; H01L27/12; H01L29/786; H10B12/00
技術(shù)領(lǐng)域
insulator,conductor,transistor,oxide,circuit,in,analog,530b,or,530c
地域： Atsugi

摘要

A semiconductor device with a novel structure is provided. The semiconductor device includes a mixer circuit including a digital-analog converter circuit, a control circuit for controlling the digital-analog converter circuit, a power source control switch, and a plurality of Gilbert circuits. The plurality of Gilbert circuits each include an analog potential holding circuit for holding an analog potential output from the digital-analog converter circuit. The control circuit has a function of outputting a signal for controlling the analog potential holding circuit and the digital-analog converter circuit. The power source control switch has a function of stopping supply of a power source voltage to the control circuit in a period during which the analog potential held in the analog potential holding circuit is not updated. The analog potential holding circuit includes a first transistor. The first transistor includes a semiconductor layer including an oxide semiconductor in a channel formation region.

說(shuō)明書(shū)

Embodiments of the present invention will be described below. Note that one embodiment of the present invention is not limited to the following description, and it will be readily appreciated by those skilled in the art that modes and details of the present invention can be modified in various ways without departing from the spirit and scope of the present invention. One embodiment of the present invention therefore should not be construed as being limited to the following description of the embodiments.

Note that ordinal numbers such as “first”, “second”, and “third” in this specification and the like are used in order to avoid confusion among components. Thus, the ordinal numbers do not limit the number of components. In addition, the ordinal numbers do not limit the order of components. In this specification and the like, for example, a “first” component in one embodiment can be referred to as a “second” component in other embodiments or claims. Furthermore, in this specification and the like, for example, a “first” component in one embodiment can be omitted in other embodiments or claims.

The same components, components having similar functions, components made of the same material, components formed at the same time, and the like in the drawings are denoted by the same reference numerals, and repetitive description thereof is skipped in some cases.

In this specification, a power source potential VDD may be abbreviated to as a potential VDD, VDD, or the like, for example. The same applies to other components (e.g., a signal, a voltage, a circuit, an element, an electrode, and a wiring).

權(quán)利要求

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