Invention Grant
- Patent Title: Semiconductor device including flip-flop circuit which includes transistors
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Application No.: US17002971Application Date: 2020-08-26
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Publication No.: US11563124B2Publication Date: 2023-01-24
- Inventor: Hidekazu Miyairi , Takeshi Osada , Shunpei Yamazaki
- Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
- Applicant Address: JP Atsugi
- Assignee: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
- Current Assignee: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
- Current Assignee Address: JP Atsugi
- Agency: Fish & Richardson P.C.
- Priority: JP2008-274540 20081024
- Main IPC: H01L29/786
- IPC: H01L29/786 ; H01L27/12 ; H01L21/477 ; H01L29/24 ; H01L29/417 ; H01L29/423 ; H01L29/66 ; H01L21/02 ; H01L21/4763 ; H01L29/45
Abstract:
As a display device has a higher definition, the number of pixels, gate lines, and signal lines are increased. When the number of the gate lines and the signal lines are increased, a problem of high manufacturing cost, because it is difficult to mount an IC chip including a driver circuit for driving of the gate and signal lines by bonding or the like. A pixel portion and a driver circuit for driving the pixel portion are provided over the same substrate, and at least part of the driver circuit includes a thin film transistor using an oxide semiconductor interposed between gate electrodes provided above and below the oxide semiconductor. Therefore, when the pixel portion and the driver portion are provided over the same substrate, manufacturing cost can be reduced.
Public/Granted literature
- US20210050453A1 Semiconductor Device and Method for Manufacturing the Same Public/Granted day:2021-02-18
Information query
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