Patents by Inventor Kaoru Tsuchiya
Kaoru Tsuchiya has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 7872320Abstract: The present invention improves mechanical strength of a micro-electro-mechanical device (MEMS) having a movable portion to improve reliability. In a micro-electro-mechanical device (MEMS) having a movable portion, a portion which has been a hollow portion in the case of a conventional structure is filled with a filler material. As the filler material, a block copolymer that is highly flexible is used, for example. By filling the hollow portion, mechanical strength improves. Besides, warpage of an upper portion of a structure body in the manufacture process is prevented, whereby yield improves. A micro-electro-mechanical device thus manufactured is highly reliable.Type: GrantFiled: November 5, 2008Date of Patent: January 18, 2011Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Kaoru Tsuchiya, Takafumi Mizoguchi
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Publication number: 20100253217Abstract: It is an object of the present invention to provide a light-emitting device where periphery deterioration can be prevented from occurring even when an organic insulating film is used as an insulating film for the light-emitting device. In addition, it is an object of the present invention to provide a light-emitting device where reliability for a long period of time can be improved. A structure of an inorganic film, an organic film, and an inorganic film is not continuously provided from under a sealing material under a cathode for a light-emitting element. In addition, penetration of water is suppressed by defining the shape of the inorganic film that is formed over the organic film even when a structure of an inorganic film, an organic film, and an inorganic film is continuously provided under a cathode for a light-emitting element.Type: ApplicationFiled: June 17, 2010Publication date: October 7, 2010Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.Inventors: Kaoru TSUCHIYA, Ayumi SATO
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Patent number: 7791270Abstract: It is an object of the present invention to provide a light-emitting device where periphery deterioration can be prevented from occurring even when an organic insulating film is used as an insulating film for the light-emitting device. In addition, it is an object of the present invention to provide a light-emitting device where reliability for a long period of time can be improved. A structure of an inorganic film, an organic film, and an inorganic film is not continuously provided from under a sealing material under a cathode for a light-emitting element. In addition, penetration of water is suppressed by defining the shape of the inorganic film that is formed over the organic film even when a structure of an inorganic film, an organic film, and an inorganic film is continuously provided under a cathode for a light-emitting element.Type: GrantFiled: September 16, 2005Date of Patent: September 7, 2010Assignee: Semiconductor Energy Laboratory Co., LtdInventors: Kaoru Tsuchiya, Ayumi Sato
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Patent number: 7696063Abstract: A semiconductor device which has higher integration and is further reduced in thickness and size. A semiconductor device with high performance and low power consumption. A semiconductor element layer separated from a substrate by using a separation layer is stacked over a semiconductor element layer formed by using another substrate and covered with a flattened inorganic insulating layer. After separation of the semiconductor element layer in a top layer from the substrate, the separation layer is removed so that an inorganic insulating film formed under the semiconductor element layer is exposed. The flattened inorganic insulating layer and the inorganic insulating film are made to be in close contact and bonded to each other. In addition, a semiconductor layer included in the semiconductor element layer is a single crystal semiconductor layer which is separated from a semiconductor substrate and transferred to a formation substrate.Type: GrantFiled: December 1, 2008Date of Patent: April 13, 2010Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventor: Kaoru Tsuchiya
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Patent number: 7619258Abstract: In a light emitting device using a light emitting element, the invention provides a sealing structure capable of preventing ingress of moisture from the outside and obtaining adequate reliability. The light emitting device has a light emitting element comprising a light emitting layer formed between a first electrode and a second electrode and a pixel portion comprising the light emitting element. The entire surface of the pixel portion is covered with the second electrode. An impermeable insulating film is formed in contact with the first electrode of the light emitting element. The edge of the first electrode and the impermeable insulating film are covered with a partition wall. An opening is formed along the circumference of the pixel portion in the partition wall. The opening passes through the partition wall in the thickness direction, and the side wall and the bottom face thereof are covered with the second electrode.Type: GrantFiled: March 10, 2005Date of Patent: November 17, 2009Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Kaoru Tsuchiya, Hideyuki Ebine, Masayuki Sakakura, Takeshi Nishi, Yoshiharu Hirakata
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Publication number: 20090195155Abstract: The present invention provides an organic light-emitting element where a lower electrode, an organic compound layer and an upper electrode are laminated on a substrate, wherein the upper electrode of the organic EL element is formed by a laminate of at least a conductive first inorganic film, a conductive organic film and a conductive second inorganic film, in order to suppress the occurrence of dark spot, so that the occurrence of pinholes in the upper electrode leading to dark spots is suppressed. Here, pinholes refer to holes in the upper electrode that penetrate upper electrode from the organic compound layer underneath to the atmosphere above.Type: ApplicationFiled: January 23, 2009Publication date: August 6, 2009Inventor: Kaoru Tsuchiya
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Publication number: 20090142888Abstract: A semiconductor device which has higher integration and is further reduced in thickness and size. A semiconductor device with high performance and low power consumption. A semiconductor element layer separated from a substrate by using a separation layer is stacked over a semiconductor element layer formed by using another substrate and covered with a flattened inorganic insulating layer. After separation of the semiconductor element layer in a top layer from the substrate, the separation layer is removed so that an inorganic insulating film formed under the semiconductor element layer is exposed. The flattened inorganic insulating layer and the inorganic insulating film are made to be in close contact and bonded to each other. In addition, a semiconductor layer included in the semiconductor element layer is a single crystal semiconductor layer which is separated from a semiconductor substrate and transferred to a formation substrate.Type: ApplicationFiled: December 1, 2008Publication date: June 4, 2009Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.Inventor: Kaoru Tsuchiya
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Publication number: 20090140283Abstract: An object of the present invention is to provide a light emitting device in which variations in an emission spectrum depending on a viewing angle with respect to a side from which luminescence is extracted are decreased. A light emitting device according to the invention has a transistor, an insulating layer covering the transistor and a light emitting element provided in an opening of the insulating layer. The transistor and the light emitting element are electronically connected through a connecting portion. Additionally, the connecting portion is connected to the transistor through a contact hole penetrating the insulating layer. Note that the insulating layer may be a single layer or a multilayer in which a plurality of layers including different substances is laminated.Type: ApplicationFiled: February 2, 2009Publication date: June 4, 2009Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.Inventors: Takahiro KAWAKAMI, Kaoru TSUCHIYA, Takeshi NISHI
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Publication number: 20090137178Abstract: A novel display device with higher reliability having a structure of blocking moisture and oxygen, which deteriorate the characteristics of the display device, from penetrating through a sealing region and a method of manufacturing thereof is provided.Type: ApplicationFiled: January 12, 2009Publication date: May 28, 2009Inventors: Masayuki SAKAKURA, Hiromichi GODO, Kaoru TSUCHIYA
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Patent number: 7532173Abstract: It is an object to provide a highly functioned and highly value-added display device and mobile terminal. It is another object to provide a display device and mobile terminal characterized by including a plurality of pixels arranged in a matrix form and a first display screen over one surface of a substrate having a translucency, a second display screen over the opposite surface of the one surface of the substrate, each of the plurality of pixels having a light emitting element for emitting light toward the first display screen and the second display screen, and a first polarizer over one surface of the substrate and a second polarizer over the opposite surface of the one surface of the substrate.Type: GrantFiled: February 27, 2004Date of Patent: May 12, 2009Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Shunpei Yamazaki, Yasuyuki Arai, Yasuko Watanabe, Aya Anzai, Hiromichi Godo, Junichiro Sakata, Kaoru Tsuchiya
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Publication number: 20090117364Abstract: The present invention improves mechanical strength of a micro-electro-mechanical device (MEMS) having a movable portion to improve reliability. In a micro-electro-mechanical device (MEMS) having a movable portion, a portion which has been a hollow portion in the case of a conventional structure is filled with a filler material. As the filler material, a block copolymer that is highly flexible is used, for example. By filling the hollow portion, mechanical strength improves. Besides, warpage of an upper portion of a structure body in the manufacture process is prevented, whereby yield improves. A micro-electro-mechanical device thus manufactured is highly reliable.Type: ApplicationFiled: November 5, 2008Publication date: May 7, 2009Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.Inventors: Kaoru Tsuchiya, Takafumi Mizoguchi
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Patent number: 7495257Abstract: An object of the present invention is to provide a light emitting device in which variations in an emission spectrum depending on a viewing angle with respect to a side from which luminescence is extracted are decreased. A light emitting device according to the invention has a transistor, an insulating layer covering the transistor and a light emitting element provided in an opening of the insulating layer. The transistor and the light emitting element are electronically connected through a connecting portion. Additionally, the connecting portion is connected to the transistor through a contact hole penetrating the insulating layer. Note that the insulating layer may be a single layer or a multilayer in which a plurality of layers including different substances is laminated.Type: GrantFiled: December 21, 2004Date of Patent: February 24, 2009Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Takahiro Kawakami, Kaoru Tsuchiya, Takeshi Nishi
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Patent number: 7488985Abstract: The present invention provides an organic light-emitting element where a lower electrode, an organic compound layer and an upper electrode are laminated on a substrate, wherein the upper electrode of the organic EL element is formed by a laminate of at least a conductive first inorganic film, a conductive organic film and a conductive second inorganic film, in order to suppress the occurrence of dark spot, so that the occurrence of pinholes in the upper electrode leading to dark spots is suppressed. Here, pinholes refer to holes in the upper electrode that penetrate upper electrode from the organic compound layer underneath to the atmosphere above.Type: GrantFiled: May 3, 2006Date of Patent: February 10, 2009Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventor: Kaoru Tsuchiya
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Patent number: 7486368Abstract: A novel display device with higher reliability having a structure of blocking moisture and oxygen, which deteriorate the characteristics of the display device, from penetrating through a sealing region and a method of manufacturing thereof is provided.Type: GrantFiled: June 16, 2004Date of Patent: February 3, 2009Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Masayuki Sakakura, Hiromichi Godo, Kaoru Tsuchiya
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Patent number: 7466294Abstract: When materials of a cathode and an anode are transparent and a substrate with transparency is used for a substrate and a sealing substrate, luminescence from a layer including an organic compound can simultaneously perform two ways of display: luminescence passing a cathode and luminescence transmitted in an anode. However, interference effect by an optical distance difference results in difference in optical characteristics (such as a color tone) between luminescence from a top surface and luminescence from a bottom surface. According to the present invention, a light-emitting device having luminescence from a top surface and luminescence from a bottom surface provides both luminescence to a top surface and luminescence to a bottom surface with an image display having an uniform color tone and of high quality by regulating a film thickness of a transparent conductive film disposed on a cathode side and a film thickness of a cathode.Type: GrantFiled: February 25, 2004Date of Patent: December 16, 2008Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Shunpei Yamazaki, Hiromichi Godo, Junichiro Sakata, Kaoru Tsuchiya
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Patent number: 7452257Abstract: In order to suppress defect modes such as shrinkage or unevenness in light-emission in a light emitting element and to shorten a time needed for a pretreatment for forming a layer containing an organic compound (EL layer), according to the present invention, a light emitting element is formed by forming a first electrode that is electrically connected to a source region or a drain region of a thin film transistor, forming an insulating film to cover an edge portion of the first electrode, performing a plasma treatment on the first electrode and the insulating film in an atmosphere containing argon and oxygen, then, forming a layer containing an organic compound (EL layer) over the first electrode and the insulating film, and forming a second electrode over the layer containing an organic compound (EL layer).Type: GrantFiled: December 17, 2003Date of Patent: November 18, 2008Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Kaoru Tsuchiya, Ayumi Ishigaki, Keiko Saito
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Publication number: 20080156886Abstract: A semiconductor device that is resistant to bending stress and has a structure in which an antenna circuit, an electric double layer capacitor for storing electricity, and the like are formed over a signal processing circuit that is provided over a substrate and has a charging circuit. The signal processing circuit having the charging circuit is provided over a substrate, and the antenna circuit and the electric double layer capacitor are provided over the signal processing circuit. The antenna circuit is electrically connected to the signal processing circuit, and the electric double layer capacitor is electrically connected to the charging circuit. With such a structure, a wiring for connecting the charging circuit and the electric double layer capacitor can be made short. Accordingly, a semiconductor device that is resistant to bending stress can be provided.Type: ApplicationFiled: December 20, 2007Publication date: July 3, 2008Applicant: Semiconductor Energy Laboratory Co., Ltd.Inventor: Kaoru Tsuchiya
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Publication number: 20080116795Abstract: In order to provide a display device of high reliability in which an amount of moisture and oxygen, which are a factor for deteriorating a characteristics of a display device, entering from a sealing agent is reduced and its manufacturing method, the present invention has a sealing film. Accordingly, an interlayer insulating film including an organic material of the display device (panel) is no longer exposed to the atmosphere outside of the display device. Therefore, it becomes possible to prevent moisture and oxygen outside of the display device from entering inside of the display device through an insulating film and the like including a hygroscopic organic material. In addition, various degradations such as contamination of an inner part of the display device caused by moisture, oxygen and the like, the degradation of electric properties, a dark spot and shrink can be prevented, thus enhancing reliability of the display device.Type: ApplicationFiled: March 2, 2007Publication date: May 22, 2008Inventors: Kaoru Tsuchiya, Ryota Fukumoto, Satoshi Murakami, Hiromichi Godo
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Publication number: 20080079362Abstract: A light-emitting device is disclosed capable of reducing the variation of an emission spectrum depending on an angle of viewing a light extraction surface. More particularly, a light-emitting device is disclosed capable of preventing impurities from dispersing from a light-emitting element into a thin film transistor as well as reducing the variation of an emission spectrum depending on an angle of viewing a light extraction surface. The disclosed light-emitting device comprises a substrate; a first insulating layer provided over the substrate; a transistor provided over the first insulating layer; and a second insulating layer having a first opening portion so that the transistor is covered and the substrate is exposed; wherein a light-emitting element is provided inside the first opening portion.Type: ApplicationFiled: November 29, 2007Publication date: April 3, 2008Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.Inventors: Takahiro KAWAKAMI, Kaoru TSUCHIYA, Takeshi NISHI, Yoshiharu HIRAKATA, Keiko KIDA, Ayumi SATO, Shunpei YAMAZAKI
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Patent number: 7315047Abstract: A light-emitting device is disclosed capable of reducing the variation of an emission spectrum depending on an angle of viewing a light extraction surface. More particularly, a light-emitting device is disclosed capable of preventing impurities from dispersing from a light-emitting element into a thin film transistor as well as reducing the variation of an emission spectrum depending on an angle of viewing a light extraction surface. The disclosed light-emitting device comprises a substrate; a first insulating layer provided over the substrate; a transistor provided over the first insulating layer; and a second insulating layer having a first opening portion so that the transistor is covered and the substrate is exposed; wherein a light-emitting element is provided inside the first opening portion.Type: GrantFiled: January 25, 2005Date of Patent: January 1, 2008Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Takahiro Kawakami, Kaoru Tsuchiya, Takeshi Nishi, Yoshiharu Hirakata, Keiko Kida, Ayumi Sato, Shunpei Yamazaki