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公开(公告)号:US20200279595A1
公开(公告)日:2020-09-03
申请号:US16647566
申请日:2018-10-02
Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
Inventor: Yoshiaki OIKAWA , Atsushi MIYAGUCHI , Hideki UOCHI
IPC: G11C11/16 , H01L27/22 , H01L29/786 , H01L43/02 , G11C11/419
Abstract: A novel storage device is provided. The storage device includes a first wiring, a second wiring, and a first memory cell. The first memory cell includes a first transistor and a first magnetic tunnel junction device. One of a source or a drain of the first transistor is electrically connected to a first wiring. The other of the source or the drain of the first transistor is electrically connected to one terminal of the first magnetic tunnel junction device. Another terminal of the first magnetic tunnel junction device is electrically connected to the second wiring. The first transistor includes an oxide semiconductor in its channel formation region.
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公开(公告)号:US20190027640A1
公开(公告)日:2019-01-24
申请号:US16141187
申请日:2018-09-25
Applicant: Semiconductor Energy Laboratory Co., Ltd.
Inventor: Shunpei YAMAZAKI , Kengo AKIMOTO , Shigeki KOMORI , Hideki UOCHI
IPC: H01L33/00 , H01L29/66 , H01L27/12 , H01L29/786
Abstract: An object is to provide a semiconductor device including a thin film transistor with excellent electrical characteristics and high reliability and a method for manufacturing the semiconductor device with high mass productivity. A main point is to form a low-resistance oxide semiconductor layer as a source or drain region after forming a drain or source electrode layer over a gate insulating layer and to form an oxide semiconductor film thereover as a semiconductor layer. It is preferable that an oxygen-excess oxide semiconductor layer be used as a semiconductor layer and an oxygen-deficient oxide semiconductor layer be used as a source region and a drain region.
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公开(公告)号:US20170371190A1
公开(公告)日:2017-12-28
申请号:US15623876
申请日:2017-06-15
Applicant: Semiconductor Energy Laboratory Co., Ltd.
Inventor: Shunpei YAMAZAKI , Daisuke KUBOTA , Hideki UOCHI
IPC: G02F1/1347 , H01L27/32 , G02F1/1333
CPC classification number: G02F1/1347 , G02F1/133305 , G02F1/133308 , G02F1/133553 , G02F1/136286 , G02F2001/13478 , G02F2201/44 , G02F2203/02 , H01L27/3232 , H01L27/3276 , H01L2251/5338
Abstract: A highly reliable display device is provided. In a flexible display device including at least a first display region and a second display region, at least a portion of a wiring provided in the first display region or the second display region has a meandering shape or a chain-like shape. Since the wiring has a meandering shape or a chain-like shape, a short-circuit, a disconnection, or the like of the wiring due to curving or bending of the display device does not occur easily. The wiring having a meandering shape or a chain-like shape can prevent defective operation, lowered reliability, or the like of the display device.
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公开(公告)号:US20170194050A1
公开(公告)日:2017-07-06
申请号:US15462956
申请日:2017-03-20
Applicant: Semiconductor Energy Laboratory Co., Ltd.
Inventor: Hideki UOCHI , Koichiro KAMATA
IPC: G11C13/00 , H01L27/115 , H01L29/24
Abstract: Disclosed is a semiconductor device having a memory cell which comprises a transistor having a control gate and a storage gate. The storage gate comprises an oxide semiconductor and is able to be a conductor and an insulator depending on the potential of the storage gate and the potential of the control gate. Data is written by setting the potential of the control gate to allow the storage gate to be a conductor, supplying a potential of data to be stored to the storage gate, and setting the potential of the control gate to allow the storage gate to be an insulator. Data is read by supplying a potential for reading to a read signal line connected to one of a source and a drain of the transistor and detecting the change in potential of a bit line connected to the other of the source and the drain.
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公开(公告)号:US20170115538A1
公开(公告)日:2017-04-27
申请号:US15397813
申请日:2017-01-04
Applicant: Semiconductor Energy Laboratory Co., Ltd.
Inventor: Hajime KIMURA , Hideki UOCHI
IPC: G02F1/1343 , G02F1/1335 , G02F1/1333 , G02F1/1368 , G02F1/1362
CPC classification number: G02F1/134363 , G02F1/133345 , G02F1/133371 , G02F1/133553 , G02F1/133555 , G02F1/13439 , G02F1/136209 , G02F1/136227 , G02F1/136286 , G02F1/1368 , G02F2001/134372 , G02F2001/136222 , G02F2201/121 , G02F2201/123 , G02F2201/124
Abstract: It is an object of the present invention to apply a sufficient electrical field to a liquid crystal material in a horizontal electrical field liquid crystal display device typified by an FFS type. In a horizontal electrical field liquid crystal display, an electrical field is applied to a liquid crystal material right above a common electrode and a pixel electrode using plural pairs of electrodes rather than one pair of electrodes. One pair of electrodes includes a comb-shaped common electrode and a comb-shaped pixel electrode. Another pair of electrodes includes a common electrode provided in a pixel portion and the comb-shaped pixel electrode.
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公开(公告)号:US20160195785A1
公开(公告)日:2016-07-07
申请号:US15068801
申请日:2016-03-14
Applicant: Semiconductor Energy Laboratory Co., Ltd.
Inventor: Hajime KIMURA , Hideki UOCHI
IPC: G02F1/1343 , G02F1/1362 , G02F1/1368
CPC classification number: G02F1/134363 , G02F1/133345 , G02F1/133371 , G02F1/133553 , G02F1/133555 , G02F1/13439 , G02F1/136209 , G02F1/136227 , G02F1/136286 , G02F1/1368 , G02F2001/134372 , G02F2001/136222 , G02F2201/121 , G02F2201/123 , G02F2201/124
Abstract: It is an object of the present invention to apply a sufficient electrical field to a liquid crystal material in a horizontal electrical field liquid crystal display device typified by an FFS type. In a horizontal electrical field liquid crystal display, an electrical field is applied to a liquid crystal material right above a common electrode and a pixel electrode using plural pairs of electrodes rather than one pair of electrodes. One pair of electrodes includes a comb-shaped common electrode and a comb-shaped pixel electrode. Another pair of electrodes includes a common electrode provided in a pixel portion and the comb-shaped pixel electrode.
Abstract translation: 本发明的目的是在以FFS为代表的水平电场液晶显示装置中向液晶材料施加足够的电场。 在水平电场液晶显示器中,使用多对电极而不是一对电极将电场施加在公共电极正上方的液晶材料和像素电极上。 一对电极包括梳状公共电极和梳状像素电极。 另一对电极包括设置在像素部分中的公共电极和梳形像素电极。
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公开(公告)号:US20130175525A1
公开(公告)日:2013-07-11
申请号:US13780138
申请日:2013-02-28
Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., Ltd.
Inventor: Shunpei YAMAZAKI , Kengo AKIMOTO , Shigeki KOMORI , Hideki UOCHI , Tomoya FUTAMURA , Takahiro KASAHARA
IPC: H01L33/00
CPC classification number: G02F1/136204 , H01L27/0248 , H01L27/1225 , H01L27/124 , H01L33/0041 , H01L2924/0002 , H01L2924/00
Abstract: In order to take advantage of the properties of a display device including an oxide semiconductor, a protective circuit and the like having appropriate structures and a small occupied area are necessary. The protective circuit is formed using a non-linear element which includes a gate insulating film covering a gate electrode; a first oxide semiconductor layer over the gate insulating film; a channel protective layer covering a region which overlaps with a channel formation region of the first oxide semiconductor layer; and a first wiring layer and a second wiring layer each of which is formed by stacking a conductive layer and a second oxide semiconductor layer and over the first oxide semiconductor layer. The gate electrode is connected to a scan line or a signal line, the first wiring layer or the second wiring layer is directly connected to the gate electrode.
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公开(公告)号:US20250147841A1
公开(公告)日:2025-05-08
申请号:US18835451
申请日:2023-02-08
Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
Inventor: Kazuma FURUTANI , Yoshiyuki KUROKAWA , Kazuaki OHSHIMA , Hideki UOCHI
IPC: G06F11/10
Abstract: A highly reliable memory device is provided. Of an information bit and a check bit forming a hamming code, the information bit having a larger bit length than the check bit is stored in a first memory portion, and the check bit is stored in the second memory portion. The hamming code is divided and stored in a plurality of memory portions, whereby occurrence of a soft error is suppressed. The first memory portion that needs a large memory capacity is formed using a Si transistor, and the second memory portion is formed using an OS transistor. A combination of memory scribing and bit interleaving achieves a highly reliable memory device.
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公开(公告)号:US20250072009A1
公开(公告)日:2025-02-27
申请号:US18947085
申请日:2024-11-14
Applicant: Semiconductor Energy Laboratory Co., Ltd.
Inventor: Shunpei YAMAZAKI , Hajime KIMURA , Takanori MATSUZAKI , Tatsuya ONUKI , Yuki OKAMOTO , Hideki UOCHI , Satoru OKAMOTO , Hiromichi GODO , Kazuki TSUDA , Hitoshi KUNITAKE
IPC: H10B63/00
Abstract: A highly reliable memory device is provided. On a side surface of a first conductor extending in a first direction, a first insulator, a first semiconductor, a second insulator, a second semiconductor, and a third insulator are provided in this order when seen from the first conductor side. A first region overlapping with a second conductor with the first insulator, the first semiconductor, the second insulator, the second semiconductor, and the third insulator therebetween, and a second region overlapping with a third conductor with the first insulator, the first semiconductor, the second insulator, the second semiconductor, and the third insulator therebetween are provided in the first conductor. In the second region, a fourth conductor is provided between the first insulator and the first semiconductor.
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公开(公告)号:US20240363639A1
公开(公告)日:2024-10-31
申请号:US18766834
申请日:2024-07-09
Applicant: Semiconductor Energy Laboratory Co., Ltd.
Inventor: Shunpei YAMAZAKI , Kengo AKIMOTO , Shigeki KOMORI , Hideki UOCHI , Tomoya FUTAMURA , Takahiro KASAHARA
IPC: H01L27/12 , G02F1/1362 , G02F1/1368 , H01L29/66 , H01L29/786
CPC classification number: H01L27/1214 , G02F1/1368 , H01L27/1225 , H01L27/124 , H01L29/66742 , H01L29/7869 , H01L29/78693 , G02F1/13624
Abstract: A protective circuit includes a non-linear element, which includes a gate electrode, a gate insulating layer covering the gate electrode, a pair of first and second wiring layers whose end portions overlap with the gate electrode over the gate insulating layer and in which a second oxide semiconductor layer and a conductive layer are stacked, and a first oxide semiconductor layer which overlaps with at least the gate electrode and which is in contact with the gate insulating layer, side face portions and part of top face portions of the conductive layer and side face portions of the second oxide semiconductor layer in the first wiring layer and the second wiring layer. Over the gate insulating layer, oxide semiconductor layers with different properties are bonded to each other, whereby stable operation can be performed as compared with Schottky junction. Thus, the junction leakage can be decreased and the characteristics of the non-linear element can be improved.
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