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Semiconductor device

專利號
US11888446B2
公開日期
2024-01-30
申請人
SEMICONDUCTOR ENERGY LABORATORY CO., LTD.(JP Atsugi)
發(fā)明人
Kiyotaka Kimura; Takeya Hirose; Hidetomo Kobayashi; Takayuki Ikeda
IPC分類
H03D7/14; H03D7/12; H01L27/12; H01L29/786; H10B12/00
技術領域
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.

說明書

FIG. 12A shows a television device 910 including a housing 921, a display portion 922, a stand 923, and the like. The housing 921 is provided with the aforementioned electronic component 7000.

FIG. 12B shows the inner structure of an automobile 920 as an example of a vehicle; a pillar 931, a dashboard 932, a handle 933, and the like are shown as the inner structure of the automobile. The pillar 931, the dashboard 932, and the handle 933 can be provided with the aforementioned electronic component 7000.

FIG. 12C shows structure bodies such as a door 941 and columns 942. The door 941 and the columns 942 are provided with the aforementioned electronic component 7000.

As described above, the electronic devices shown in this embodiment each include the aforementioned electronic component 7000. Thus, the sound from the user or the like can be identified as a sound source, and an application can be launched based on the identified sound-source location.

Example 1

Described in this example are retention characteristics of a signal in a fabricated Gilbert circuit that includes the analog potential holding circuit described above in Embodiment 1.

權利要求

1
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