公开(公告)号：US10361222B2

公开(公告)日：2019-07-23

申请号：US15897318

申请日：2018-02-15

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Atsuo Isobe ,  Shunpei Yamazaki ,  Koji Dairiki ,  Hiroshi Shibata ,  Chiho Kokubo ,  Tatsuya Arao ,  Masahiko Hayakawa ,  Hidekazu Miyairi ,  Akihisa Shimomura ,  Koichiro Tanaka ,  Mai Akiba

IPC: H04L27/12 ,  H01L27/12 ,  H01L21/3213 ,  H01L21/02 ,  B23K26/073 ,  H01L21/20 ,  H01L21/84 ,  H01L29/66 ,  H01L29/786

Abstract: A semiconductor device production system using a laser crystallization method is provided which can avoid forming grain boundaries in a channel formulation region of a TFT, thereby preventing grain boundaries from lowering the mobility of the TFT greatly, from lowering ON current, and from increasing OFF current. Rectangular or stripe pattern depression and projection portions are formed on an insulating film. A semiconductor film is formed on the insulating film. The semiconductor film is irradiated with continuous wave laser light by running the laser light along the stripe pattern depression and projection portions of the insulating film or along the major or minor axis direction of the rectangle. Although continuous wave laser light is most preferred among laser light, it is also possible to use pulse oscillation laser light in irradiating the semiconductor film.

公开(公告)号：US09466622B2

公开(公告)日：2016-10-11

申请号：US14995442

申请日：2016-01-14

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Hiroshi Shibata ,  Atsuo Isobe

IPC: H01L27/00 ,  H01L27/12 ,  H01L27/32 ,  G02F1/1345 ,  G02F1/1362 ,  H01L29/786 ,  G02F1/1333 ,  G02F1/1368 ,  H01L29/49

CPC classification number: H01L27/1255 ,  G02F1/133345 ,  G02F1/13454 ,  G02F1/136209 ,  G02F1/136213 ,  G02F1/136227 ,  G02F1/136277 ,  G02F1/136286 ,  G02F1/1368 ,  H01L27/12 ,  H01L27/1214 ,  H01L27/124 ,  H01L27/3244 ,  H01L27/3248 ,  H01L27/3262 ,  H01L27/3265 ,  H01L27/3276 ,  H01L29/4908 ,  H01L29/786 ,  H01L29/78633

Abstract: To provide a liquid crystal display device having high quality display by obtaining a high aperture ratio while securing a sufficient storage capacitor (Cs), and at the same time, by dispersing a load (a pixel writing-in electric current) of a capacitor wiring in a timely manner to effectively reduce the load. A scanning line is formed on a different layer from a gate electrode and the capacitor wiring is arranged so as to be parallel with a signal line. Each pixel is connected to the individually independent capacitor wiring via a dielectric. Therefore, variations in the electric potential of the capacitor wiring caused by a writing-in electric current of a neighboring pixel can be avoided, whereby obtaining satisfactory display images.

Abstract translation: 为了提供一种通过在确保足够的存储电容器（Cs）的同时获得高开口率而具有高质量显示的液晶显示装置，并且同时通过分散电容器布线的负载（像素写入电流） 及时有效减轻负荷。 扫描线形成在与栅电极不同的层上，电容布线与信号线平行。 每个像素通过电介质连接到单独独立的电容器布线。 因此，可以避免由相邻像素的写入电流引起的电容器布线的电位变化，从而获得令人满意的显示图像。

公开(公告)号：US09899419B2

公开(公告)日：2018-02-20

申请号：US14924100

申请日：2015-10-27

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Atsuo Isobe ,  Shunpei Yamazaki ,  Koji Dairiki ,  Hiroshi Shibata ,  Chiho Kokubo ,  Tatsuya Arao ,  Masahiko Hayakawa ,  Hidekazu Miyairi ,  Akihisa Shimomura ,  Koichiro Tanaka ,  Mai Akiba

IPC: H01L29/786 ,  H01L27/12 ,  H01L21/3213 ,  H01L21/02 ,  B23K26/073 ,  H01L21/20 ,  H01L21/84 ,  H01L29/66

CPC classification number: H01L27/1222 ,  B23K26/0738 ,  H01L21/02354 ,  H01L21/02356 ,  H01L21/02675 ,  H01L21/02683 ,  H01L21/02686 ,  H01L21/02691 ,  H01L21/2026 ,  H01L21/32139 ,  H01L21/84 ,  H01L27/1214 ,  H01L27/1218 ,  H01L27/124 ,  H01L27/1255 ,  H01L27/1274 ,  H01L27/1281 ,  H01L27/1296 ,  H01L29/66757 ,  H01L29/78603 ,  H01L29/78675 ,  H01L29/78696 ,  Y10S118/90 ,  Y10T117/10 ,  Y10T117/1004 ,  Y10T117/1008

Abstract: A semiconductor device production system using a laser crystallization method is provided which can avoid forming grain boundaries in a channel formation region of a TFT, thereby preventing grain boundaries from lowering the mobility of the TFT greatly, from lowering ON current, and from increasing OFF current. Rectangular or stripe pattern depression and projection portions are formed on an insulating film. A semiconductor film is formed on the insulating film. The semiconductor film is irradiated with continuous wave laser light by running the laser light along the stripe pattern depression and projection portions of the insulating film or along the major or minor axis direction of the rectangle. Although continuous wave laser light is most preferred among laser light, it is also possible to use pulse oscillation laser light in irradiating the semiconductor film.

公开(公告)号：US09250490B2

公开(公告)日：2016-02-02

申请号：US14527020

申请日：2014-10-29

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Hiroshi Shibata ,  Atsuo Isobe

IPC: H01L27/00 ,  G02F1/1362 ,  H01L27/32 ,  G02F1/1345 ,  H01L29/786 ,  H01L27/12 ,  G02F1/1333 ,  G02F1/1368

CPC classification number: H01L27/1255 ,  G02F1/133345 ,  G02F1/13454 ,  G02F1/136209 ,  G02F1/136213 ,  G02F1/136227 ,  G02F1/136277 ,  G02F1/136286 ,  G02F1/1368 ,  H01L27/12 ,  H01L27/1214 ,  H01L27/124 ,  H01L27/3244 ,  H01L27/3248 ,  H01L27/3262 ,  H01L27/3265 ,  H01L27/3276 ,  H01L29/4908 ,  H01L29/786 ,  H01L29/78633

Abstract: To provide a liquid crystal display device having high quality display by obtaining a high aperture ratio while securing a sufficient storage capacitor (Cs), and at the same time, by dispersing a load (a pixel writing-in electric current) of a capacitor wiring in a timely manner to effectively reduce the load. A scanning line is formed on a different layer from a gate electrode and the capacitor wiring is arranged so as to be parallel with a signal line. Each pixel is connected to the individually independent capacitor wiring via a dielectric. Therefore, variations in the electric potential of the capacitor wiring caused by a writing-in electric current of a neighboring pixel can be avoided, whereby obtaining satisfactory display images.

Abstract translation: 为了提供一种通过在确保足够的存储电容器（Cs）的同时获得高开口率而具有高质量显示的液晶显示装置，并且同时通过分散电容器布线的负载（像素写入电流） 及时有效减轻负荷。 扫描线形成在与栅电极不同的层上，电容布线与信号线平行。 每个像素通过电介质连接到单独独立的电容器布线。 因此，可以避免由相邻像素的写入电流引起的电容器布线的电位变化，从而获得令人满意的显示图像。

公开(公告)号：US09219157B2

公开(公告)日：2015-12-22

申请号：US14069404

申请日：2013-11-01

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Hiroshi Shibata ,  Shinji Maekawa

IPC: H01L21/00 ,  H01L29/786 ,  G02F1/1362 ,  H01L29/66 ,  H01L27/12 ,  G02F1/1345

CPC classification number: H01L27/1222 ,  G02F1/13454 ,  G02F1/136209 ,  G02F1/136213 ,  G02F1/136227 ,  G02F1/136286 ,  G02F2202/105 ,  H01L27/1255 ,  H01L29/66757 ,  H01L29/78621 ,  H01L29/78633 ,  H01L29/78645 ,  H01L29/78675 ,  H01L29/78696

Abstract: A multi-gate structure is used and a width (d1) of a high concentration impurity region sandwiched by two channel forming regions in a channel length direction is set to be shorter than a width (d2) of low concentration impurity regions in the channel length direction. Thus, a resistance of the entire semiconductor layer of a TFT which is in an on state is reduced to increase an on current. In addition, a carrier life time due to photoexcitation produced in the high concentration impurity region can be shortened to reduce light sensitivity.

Abstract translation: 使用多栅极结构，并且在沟道长度方向上被两沟道形成区域夹持的高浓度杂质区域的宽度（d1）设定为短于沟道长度中的低浓度杂质区域的宽度（d2） 方向。 因此，导通状态的TFT的整个半导体层的电阻减小以增加导通电流。 此外，可以缩短由于在高浓度杂质区域产生的光激发而导致的载流子寿命，以降低光灵敏度。

公开(公告)号：US08933455B2

公开(公告)日：2015-01-13

申请号：US14018463

申请日：2013-09-05

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Hiroshi Shibata ,  Atsuo Isobe

IPC: H01L29/04 ,  H01L29/10 ,  H01L27/12 ,  G02F1/1362 ,  G02F1/1345 ,  H01L27/32 ,  H01L29/786

CPC classification number: H01L27/1255 ,  G02F1/133345 ,  G02F1/13454 ,  G02F1/136209 ,  G02F1/136213 ,  G02F1/136227 ,  G02F1/136277 ,  G02F1/136286 ,  G02F1/1368 ,  H01L27/12 ,  H01L27/1214 ,  H01L27/124 ,  H01L27/3244 ,  H01L27/3248 ,  H01L27/3262 ,  H01L27/3265 ,  H01L27/3276 ,  H01L29/4908 ,  H01L29/786 ,  H01L29/78633

Abstract: To provide a liquid crystal display device having high quality display by obtaining a high aperture ratio while securing a sufficient storage capacitor (Cs), and at the same time, by dispersing a load (a pixel writing-in electric current) of a capacitor wiring in a timely manner to effectively reduce the load. A scanning line is formed on a different layer from a gate electrode and the capacitor wiring is arranged so as to be parallel with a signal line. Each pixel is connected to the individually independent capacitor wiring via a dielectric. Therefore, variations in the electric potential of the capacitor wiring caused by a writing-in electric current of a neighboring pixel can be avoided, whereby obtaining satisfactory display images.

Abstract translation: 为了提供一种通过在确保足够的存储电容器（Cs）的同时获得高开口率而具有高质量显示的液晶显示装置，并且同时通过分散电容器布线的负载（像素写入电流） 及时有效减轻负荷。 扫描线形成在与栅电极不同的层上，电容布线与信号线平行。 每个像素通过电介质连接到单独独立的电容器布线。 因此，可以避免由相邻像素的写入电流引起的电容器布线的电位变化，从而获得令人满意的显示图像。

公开(公告)号：US10515983B2

公开(公告)日：2019-12-24

申请号：US16515117

申请日：2019-07-18

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Atsuo Isobe ,  Shunpei Yamazaki ,  Koji Dairiki ,  Hiroshi Shibata ,  Chiho Kokubo ,  Tatsuya Arao ,  Masahiko Hayakawa ,  Hidekazu Miyairi ,  Akihisa Shimomura ,  Koichiro Tanaka ,  Mai Akiba

IPC: H01L27/12 ,  H01L21/02 ,  H01L29/786 ,  H01L21/84 ,  B23K26/073 ,  H01L21/20 ,  H01L29/66 ,  H01L21/3213

Abstract: A semiconductor device production system using a laser crystallization method is provided which can avoid forming grain boundaries in a channel formation region of a TFT, thereby preventing grain boundaries from lowering the mobility of the TFT greatly, from lowering ON current, and from increasing OFF current. Rectangular or stripe pattern depression and projection portions are formed on an insulating film. A semiconductor film is formed on the insulating film. The semiconductor film is irradiated with continuous wave laser light by running the laser light along the stripe pattern depression and projection portions of the insulating film or along the major or minor axis direction of the rectangle. Although continuous wave laser light is most preferred among laser light, it is also possible to use pulse oscillation laser light in irradiating the semiconductor film.

公开(公告)号：US09362410B2

公开(公告)日：2016-06-07

申请号：US14974957

申请日：2015-12-18

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Hiroshi Shibata ,  Shinji Maekawa

IPC: H01L21/00 ,  H01L29/786

CPC classification number: H01L27/1222 ,  G02F1/13454 ,  G02F1/136209 ,  G02F1/136213 ,  G02F1/136227 ,  G02F1/136286 ,  G02F2202/105 ,  H01L27/1255 ,  H01L29/66757 ,  H01L29/78621 ,  H01L29/78633 ,  H01L29/78645 ,  H01L29/78675 ,  H01L29/78696

Abstract: A multi-gate structure is used and a width (d1) of a high concentration impurity region sandwiched by two channel forming regions in a channel length direction is set to be shorter than a width (d2) of low concentration impurity regions in the channel length direction. Thus, a resistance of the entire semiconductor layer of a TFT which is in an on state is reduced to increase an on current. In addition, a carrier life time due to photoexcitation produced in the high concentration impurity region can be shortened to reduce light sensitivity.