Patents by Inventor Masataka Nakada
Masataka Nakada 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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Publication number: 20150311260Abstract: A flexible input and output device in which defects due to a crack is reduced. The input and output device includes a first flexible substrate, a second flexible substrate, a first buffer layer, a first crack inhibiting layer, an input device, and a light-emitting element. A first surface of the first flexible substrate faces a second surface of the second flexible substrate. The first buffer layer, the first crack inhibiting layer, and the input device are provided on the first surface side of the first flexible substrate. The first buffer layer includes a region overlapping with the first crack inhibiting layer. The first buffer layer is between the first crack inhibiting layer and the first surface. The input device includes a transistor and a sensor element. The light-emitting element is provided on the second surface side of the second flexible substrate.Type: ApplicationFiled: April 20, 2015Publication date: October 29, 2015Inventors: Naoyuki SENDA, Masataka NAKADA, Takayuki ABE, Koji KUSUNOKI, Hideaki SHISHIDO
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Publication number: 20150263174Abstract: In a semiconductor device including a transistor, the transistor is provided over a first insulating film, and the transistor includes an oxide semiconductor film over the first insulating film, a gate insulating film over the oxide semiconductor film, a gate electrode over the gate insulating film, a second insulating film over the oxide semiconductor film and the gate electrode, and a source and a drain electrodes electrically connected to the oxide semiconductor film. The first insulating film includes oxygen. The second insulating film includes hydrogen. The oxide semiconductor film includes a first region in contact with the gate insulating film and a second region in contact with the second insulating film. The first insulating film includes a third region overlapping with the first region and a fourth region overlapping with the second region. The impurity element concentration of the fourth region is higher than that of the third region.Type: ApplicationFiled: March 6, 2015Publication date: September 17, 2015Inventors: Shunpei YAMAZAKI, Junichi KOEZUKA, Yukinori SHIMA, Masami JINTYOU, Daisuke KUROSAKI, Masataka NAKADA
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Publication number: 20150255740Abstract: A flexible device with fewer defects caused by a crack is provided. A flexible device with high productivity is also provided. Furthermore, a flexible device with less display failure even in a high temperature and high humidity environment is provided. A light-emitting device includes a first flexible substrate, a second flexible substrate, a buffer layer, a first crack inhibiting layer, and a light-emitting element. A first surface of the first flexible substrate faces a second surface of the second flexible substrate. The buffer layer and the first crack inhibiting layer are provided over the first surface of the first flexible substrate. The buffer layer overlaps with the first crack inhibiting layer. The light-emitting element is provided over the second surface of the second flexible substrate.Type: ApplicationFiled: February 26, 2015Publication date: September 10, 2015Inventors: Masataka NAKADA, Takayuki ABE, Naoyuki SENDA
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Publication number: 20150228803Abstract: The semiconductor device includes a first transistor provided in a driver circuit portion and a second transistor provided in a pixel portion; the first transistor and the second transistor have different structures. In an oxide semiconductor film of each of the transistors, an impurity element is contained in regions which do not overlap with a gate electrode. The regions of the oxide semiconductor film which contain the impurity element function as low-resistance regions. Furthermore, the regions of the oxide semiconductor film which contain the impurity element are in contact with a film containing hydrogen. Furthermore, the first transistor provided in the driver circuit portion may include the oxide semiconductor film in which a first film and a second film are stacked, and the second transistor provided in the pixel portion may include the oxide semiconductor film which differs from the first film in the atomic ratio of metal elements.Type: ApplicationFiled: January 29, 2015Publication date: August 13, 2015Inventors: Junichi KOEZUKA, Masami JINTYOU, Yukinori SHIMA, Daisuke KUROSAKI, Masataka NAKADA, Shunpei YAMAZAKI
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Publication number: 20150228799Abstract: A semiconductor device including an oxide semiconductor in which on-state current is high is provided. The semiconductor device includes a first transistor provided in a driver circuit portion and a second transistor provided in a pixel portion; the first transistor and the second transistor have different structures. Furthermore, the first transistor and the second transistor are transistors having a top-gate structure. In an oxide semiconductor film of each of the transistors, an impurity element is contained in regions which do not overlap with a gate electrode. The regions of the oxide semiconductor film which contain the impurity element function as low-resistance regions. Furthermore, the regions of the oxide semiconductor film which contain the impurity element are in contact with a film containing hydrogen. The first transistor provided in the driver circuit portion includes two gate electrodes between which the oxide semiconductor film is provided.Type: ApplicationFiled: February 5, 2015Publication date: August 13, 2015Inventors: Junichi KOEZUKA, Masami JINTYOU, Yukinori SHIMA, Daisuke KUROSAKI, Masataka NAKADA, Shunpei YAMAZAKI
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Publication number: 20150221679Abstract: A semiconductor device includes a transistor and a capacitor. The transistor includes a first conductive film; a first insulating film including a film containing hydrogen; a second insulating film including an oxide insulating film; an oxide semiconductor film including a first region and a pair of second regions; a pair of electrodes; a gate insulating film; and a second conductive film. The capacitor includes a lower electrode, an inter-electrode insulating film, and an upper electrode. The lower electrode contains the same material as the first conductive film. The inter-electrode insulating film includes a third insulating film containing the same material as the first insulating film and a fourth insulating film containing the same material as the gate insulating film. The upper electrode contains the same material as the second conductive film. A fifth insulating film containing hydrogen is provided over the transistor.Type: ApplicationFiled: February 3, 2015Publication date: August 6, 2015Applicant: Semiconductor Energy Laboratory Co., Ltd.Inventors: Shunpei YAMAZAKI, Kenichi OKAZAKI, Masataka NAKADA, Masahiro KATAYAMA
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Publication number: 20150221775Abstract: To provide a semiconductor device with small parasitic capacitance. Alternatively, to provide a semiconductor device with low power consumption. The semiconductor device includes a transistor and a capacitor. The transistor includes a first conductor, a first insulator over the first conductor, a semiconductor including a region overlapping with the first conductor with the first insulator interposed therebetween, a second insulator over the semiconductor, a second conductor including a region overlapping with the semiconductor with the second insulator interposed therebetween, and a third conductor and a fourth conductor including a region in contact with a top surface of the semiconductor. The capacitor includes a layer formed from the same layer as the first conductor and a layer formed from the same layer as the third conductor and the fourth conductor.Type: ApplicationFiled: January 30, 2015Publication date: August 6, 2015Inventors: Shunpei YAMAZAKI, Kenichi OKAZAKI, Masataka NAKADA, Masahiro KATAYAMA
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Publication number: 20150221678Abstract: To provide a semiconductor device including a planar transistor having an oxide semiconductor and a capacitor. In a semiconductor device, a transistor includes an oxide semiconductor film, a gate insulating film over the oxide semiconductor film, a gate electrode over the gate insulating film, a second insulating film over the gate electrode, a third insulating film over the second insulating film, and a source and a drain electrodes over the third insulating film; the source and the drain electrodes are electrically connected to the oxide semiconductor film; a capacitor includes a first and a second conductive films and the second insulating film; the first conductive film and the gate electrode are provided over the same surface; the second conductive film and the source and the drain electrodes are provided over the same surface; and the second insulating film is provided between the first and the second conductive films.Type: ApplicationFiled: January 26, 2015Publication date: August 6, 2015Inventors: Shunpei YAMAZAKI, Kenichi OKAZAKI, Masahiro KATAYAMA, Masataka NAKADA
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Publication number: 20150221777Abstract: An object is to improve water resistance and reliability of a semiconductor device by reducing the degree of peeling of a film. In a semiconductor device, a first inorganic insulating layer, a semiconductor element layer, a second inorganic insulating layer, an organic insulating layer, and a third inorganic insulating layer are sequentially stacked over a substrate. The second inorganic insulating layer is in contact with the first inorganic insulating layer in an opening portion provided in the semiconductor element layer. The third inorganic insulating layer is in contact with the second inorganic insulating layer in an opening portion provided in the organic insulating layer. In a region where the second inorganic insulating layer and the third inorganic insulating layer are in contact with each other, the second inorganic insulating layer has a plurality of irregularities or openings.Type: ApplicationFiled: April 13, 2015Publication date: August 6, 2015Applicant: Semiconductor Energy Laboratory Co., Ltd.Inventors: Yoshiaki OIKAWA, Masayuki KAJIWARA, Masataka NAKADA, Masami JINTYOU, Shunpei YAMAZAKI
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Publication number: 20150108471Abstract: A novel display device capable of adjusting color purity is provided. A novel display device with improved adhesion of a color filter is provided. A novel display device capable of excellent reflective display is provided. The display device includes a transistor, a reflective electrode layer formed on the same surface as a source electrode layer or a drain electrode layer of the transistor, a first insulating layer over the reflective electrode layer, a coloring layer which is over the first insulating layer and overlaps with the reflective electrode layer, a second insulating layer over the coloring layer, and a pixel electrode layer over the second insulating layer. The coloring layer includes at least a first opening and a second opening. The pixel electrode layer is electrically connected to the transistor through the first opening. The second insulating layer is in contact with the first insulating layer in the second opening.Type: ApplicationFiled: October 16, 2014Publication date: April 23, 2015Inventors: Masataka NAKADA, Hidenori MORI, Hisashi OHTANI
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Patent number: 9006051Abstract: An object is to improve water resistance and reliability of a semiconductor device by reducing the degree of peeling of a film. In a semiconductor device, a first inorganic insulating layer, a semiconductor element layer, a second inorganic insulating layer, an organic insulating layer, and a third inorganic insulating layer are sequentially stacked over a substrate. The second inorganic insulating layer is in contact with the first inorganic insulating layer in an opening portion provided in the semiconductor element layer. The third inorganic insulating layer is in contact with the second inorganic insulating layer in an opening portion provided in the organic insulating layer. In a region where the second inorganic insulating layer and the third inorganic insulating layer are in contact with each other, the second inorganic insulating layer has a plurality of irregularities or openings.Type: GrantFiled: April 14, 2009Date of Patent: April 14, 2015Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Yoshiaki Oikawa, Masayuki Kajiwara, Masataka Nakada, Masami Jintyou, Shunpei Yamazaki
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Publication number: 20150060890Abstract: An object is to provide a highly reliable light emitting device which is thin and is not damaged by external local pressure. Further, another object is to manufacture a light emitting device with a high yield by preventing defects of a shape and characteristics due to external stress in a manufacture process. A light emitting element is sealed between a first structure body in which a fibrous body is impregnated with an organic resin and a second structure body in which a fibrous body is impregnated with an organic resin, whereby a highly reliable light emitting device which is thin and has intensity can be provided. Further, a light emitting device can be manufactured with a high yield by preventing defects of a shape and characteristics in a manufacture process.Type: ApplicationFiled: October 10, 2014Publication date: March 5, 2015Inventors: Yoshiaki Oikawa, Shingo Eguchi, Mitsuo Mashiyama, Masatoshi Kataniwa, Hironobu Shoji, Masataka Nakada, Satoshi Seo
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Publication number: 20140306201Abstract: One embodiment of the present invention relates to a light-emitting device comprising an insulating surface; a lower electrode over the insulating surface; a protrusion over the insulating surface having a sidewall sloping toward the lower electrode; a light-transmitting partition overlapping with an end portion of the lower electrode and the sidewall of the protrusion; and a light-emitting element including the lower electrode, an upper electrode overlapping with the lower electrode, and a layer containing a light-emitting organic compound between the lower electrode and the upper electrode. In the light-emitting device, the sidewall of the protrusion can reflect light emitted from the light-emitting element. As a result, the light-emitting device that has reduced power consumption is provided.Type: ApplicationFiled: April 2, 2014Publication date: October 16, 2014Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.Inventors: Shunpei YAMAZAKI, Hisao Ikeda, Masataka Nakada, Masami Jintyou, Koji Ono
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Patent number: 8860306Abstract: An object is to provide a highly reliable light emitting device which is thin and is not damaged by external local pressure. Further, another object is to manufacture a light emitting device with a high yield by preventing defects of a shape and characteristics due to external stress in a manufacture process. A light emitting element is sealed between a first structure body in which a fibrous body is impregnated with an organic resin and a second structure body in which a fibrous body is impregnated with an organic resin, whereby a highly reliable light emitting device which is thin and has intensity can be provided. Further, a light emitting device can be manufactured with a high yield by preventing defects of a shape and characteristics in a manufacture process.Type: GrantFiled: September 5, 2012Date of Patent: October 14, 2014Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Yoshiaki Oikawa, Shingo Eguchi, Mitsuo Mashiyama, Masatoshi Kataniwa, Hironobu Shoji, Masataka Nakada, Satoshi Seo
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Publication number: 20140291667Abstract: A novel display device capable of excellent reflective display is provided. The display device includes a transistor including a gate electrode layer, a gate insulating layer over the gate electrode layer, a semiconductor layer over the gate insulating layer, and a source electrode layer and a drain electrode layer over the gate insulating layer and the semiconductor layer; a reflective electrode layer on the same plane as the source electrode layer and the drain electrode layer; a coloring layer overlapping with the reflective electrode layer; a pixel electrode layer overlapping with the coloring layer; and an anti-oxidation conductive layer connected to one of the source electrode layer and the drain electrode layer. The pixel electrode layer is connected to the transistor through the anti-oxidation conductive layer.Type: ApplicationFiled: March 18, 2014Publication date: October 2, 2014Applicant: Semiconductor Energy Laboratory Co., Ltd.Inventors: Masataka Nakada, Hidenori Mori, Hisashi Ohtani
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Publication number: 20120326145Abstract: An object is to provide a highly reliable light emitting device which is thin and is not damaged by external local pressure. Further, another object is to manufacture a light emitting device with a high yield by preventing defects of a shape and characteristics due to external stress in a manufacture process. A light emitting element is sealed between a first structure body in which a fibrous body is impregnated with an organic resin and a second structure body in which a fibrous body is impregnated with an organic resin, whereby a highly reliable light emitting device which is thin and has intensity can be provided. Further, a light emitting device can be manufactured with a high yield by preventing defects of a shape and characteristics in a manufacture process.Type: ApplicationFiled: September 5, 2012Publication date: December 27, 2012Inventors: Yoshiaki Oikawa, Shingo Eguchi, Mitsuo Mashiyama, Masatoshi Kataniwa, Hironobu Shoji, Masataka Nakada, Satoshi Seo
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Patent number: 8264144Abstract: An object is to provide a highly reliable light emitting device which is thin and is not damaged by external local pressure. Further, another object is to manufacture a light emitting device with a high yield by preventing defects of a shape and characteristics due to external stress in a manufacture process. A light emitting element is sealed between a first structure body in which a fibrous body is impregnated with an organic resin and a second structure body in which a fibrous body is impregnated with an organic resin, whereby a highly reliable light emitting device which is thin and has intensity can be provided. Further, a light emitting device can be manufactured with a high yield by preventing defects of a shape and characteristics in a manufacture process.Type: GrantFiled: July 9, 2009Date of Patent: September 11, 2012Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Yoshiaki Oikawa, Shingo Eguchi, Mitsuo Mashiyama, Masatoshi Kataniwa, Hironobu Shoji, Masataka Nakada, Satoshi Seo
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Patent number: 8237248Abstract: An object is to provide a highly reliable semiconductor device having resistance to external stress and electrostatic discharge while achieving reduction in thickness and size. Another object is to prevent defective shapes and deterioration in characteristics due to external stress or electrostatic discharge in a manufacture process to manufacture a semiconductor device with a high yield. A first insulator and a second insulator facing each other, a semiconductor integrated circuit and an antenna provided between the first insulator and the second insulator facing each other, a conductive shield provided on one surface of the first insulator, and a conductive shield provided on one surface of the second insulator are provided. The conductive shield provided on one surface of the first insulator and the conductive shield provided on one surface of the second insulator are electrically connected.Type: GrantFiled: May 19, 2009Date of Patent: August 7, 2012Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Shunpei Yamazaki, Yoshiaki Oikawa, Hironobu Shoji, Yutaka Shionoiri, Kiyoshi Kato, Masataka Nakada
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Patent number: 8169588Abstract: A flexible and highly reliable liquid crystal display device which is not easily damaged even if subjected to external pressure is provided. A method for manufacturing, with high yield, a flexible and highly reliable liquid crystal display device which is not easily damaged even if subjected to external pressure is also provided. A liquid crystal display device including a first structure body including a first fibrous body and a first organic resin, a second structure body including a second fibrous body and a second organic resin, a liquid crystal interposed between the first and second structure bodies, and a seal member for fixing the first and second structure bodies and for enclosing the liquid crystal. The first and second fibrous bodies are impregnated with the first and second organic resins, respectively, and the first structure body and the second structure body are in contact with each other.Type: GrantFiled: July 7, 2009Date of Patent: May 1, 2012Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Yoshiaki Oikawa, Shingo Eguchi, Mitsuo Mashiyama, Masatoshi Kataniwa, Hironobu Shoji, Masataka Nakada
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Patent number: 8148818Abstract: A conductive shield covering a semiconductor integrated circuit prevents electrostatic breakdown of the semiconductor integrated circuit (e.g., malfunction of a circuit and damage to a semiconductor element) due to electrostatic discharge. Further, with use of a pair of insulators between which the semiconductor integrated circuit is sandwiched, a highly reliable semiconductor having resistance can be provided while achieving reduction in the thickness and size. Moreover, also in the manufacturing process, external stress, or defective shapes or deterioration in characteristics resulted from electrostatic discharge are prevented, and thus the semiconductor device can be manufactured with high yield.Type: GrantFiled: May 19, 2009Date of Patent: April 3, 2012Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Shunpei Yamazaki, Yoshiaki Oikawa, Hironobu Shoji, Yutaka Shionoiri, Kiyoshi Kato, Masataka Nakada