Patents by Inventor Yasuyuki Arai

Yasuyuki Arai 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).

  • Publication number: 20110232571
    Abstract: The present invention relates to a film formation apparatus including a first transfer chamber having a roller for sending a substrate, a film formation chamber having a discharging electrode, a buffer chamber provided between the transfer chamber and the film formation chamber or between the film formation chambers, a slit provided in a portion where the substrate comes in and out in the buffer chamber, and a second transfer chamber having a roller for rewinding the substrate. The slit is provided with at least one touch roller, and the touch roller is in contact with a film formation surface of the substrate. In addition, the present invention also relates to a method for forming a film and a method for manufacturing a photoelectric conversion device that are performed by using such a film formation apparatus.
    Type: Application
    Filed: June 7, 2011
    Publication date: September 29, 2011
    Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
    Inventors: Yoshikazu HIURA, Hiroki ADACHI, Hironobu TAKAHASHI, Yuusuke SUGAWARA, Tatsuya ARAO, Kazuo NISHI, Yasuyuki ARAI
  • Patent number: 8023055
    Abstract: In a semiconductor device, a first interlayer insulating layer made of an inorganic material and formed on inverse stagger type TFTs, a second interlayer insulating layer made of an organic material and formed on the first interlayer insulating layer, and a pixel electrode formed in contact with the second interlayer insulating layer are disposed on a substrate, and an input terminal portion that is electrically connected to a wiring of another substrate is provided on an end portion of the substrate. The input terminal portion includes a first layer made of the same material as that of the gate electrode and a second layer made of the same material as that of the pixel electrode. With this structure, the number of photomasks used in the photolithography method can be reduced to 5.
    Type: Grant
    Filed: October 24, 2008
    Date of Patent: September 20, 2011
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Setsuo Nakajima, Yasuyuki Arai
  • Publication number: 20110223966
    Abstract: The present invention provides an ultrathin thin film integrated circuit and a thin film integrated circuit device including the thin film integrated circuit device. Accordingly, the design of a product is not spoilt while an integrated circuit formed from a silicon wafer, which is thick and produces irregularities on the surface of the product container. The thin film integrated circuit according to the present invention includes a semiconductor film as an active region (for example a channel region in a thin film transistor), unlike an integrated circuit formed from a conventional silicon wafer. The thin film integrated circuit according to the present invention is thin enough that the design is not spoilt even when a product such as a card or a container is equipped with the thin film integrated circuit.
    Type: Application
    Filed: May 25, 2011
    Publication date: September 15, 2011
    Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
    Inventors: Yasuyuki ARAI, Akira ISHIKAWA, Toru TAKAYAMA, Junya MARUYAMA, Yuugo GOTO, Yumiko OHNO, Yuko TACHIMURA
  • Patent number: 8017951
    Abstract: TFT structures optimal for driving conditions of a pixel portion and driving circuits are obtained using a small number of photo masks. First through third semiconductor films are formed on a first insulating film. First shape first, second, and third electrodes are formed on the first through third semiconductor films. The first shape first, second, third electrodes are used as masks in first doping treatment to form first concentration impurity regions of one conductivity type in the first through third semiconductor films. Second shape first, second, and third electrodes are formed from the first shape first, second, and third electrodes. A second concentration impurity region of the one conductivity type which overlaps the second shape second electrode is formed in the second semiconductor film in second doping treatment. Also formed in the second doping treatment are third concentration impurity regions of the one conductivity type which are placed in the first and second semiconductor films.
    Type: Grant
    Filed: April 16, 2009
    Date of Patent: September 13, 2011
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Takashi Hamada, Yasuyuki Arai
  • Patent number: 8013972
    Abstract: A method of fabricating a driver circuit for use with a passive matrix or active matrix electrooptical display device such as a liquid crystal display. The driver circuit occupies less space than heretofore. A circuit (stick crystal) having a length substantially equal to the length of one side of the matrix of the display device is used as the driver circuit. The circuit is bonded to one substrate of the display device, and then the terminals of the circuit are connected with the terminals of the display device. Subsequently, the substrate of the driver circuit is removed. This makes the configuration of the circuit much simpler than the configuration of the circuit heretofore required by the TAB method or COG method, because conducting lines are not laid in a complex manner. The driver circuit can be formed on a large-area substrate such as a glass substrate. The display device can be formed on a lightweight material having a high shock resistance such as a plastic substrate.
    Type: Grant
    Filed: November 4, 2008
    Date of Patent: September 6, 2011
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Shunpei Yamazaki, Yasuhiko Takemura, Setsuo Nakajima, Yasuyuki Arai
  • Patent number: 8012782
    Abstract: In a liquid crystal display device, a first substrate includes electrical wirings and a semiconductor integrated circuit which has TFTs and is connected electrically to the electrical wirings, and a second substrate includes a transparent conductive film on a surface thereof. A surface of the first substrate that the electrical wirings are formed is opposite to the transparent conductive film on the second substrate. the semiconductor integrated circuit has substantially the same length as one side of a display screen (i.e., a matrix circuit) of the display device and is obtained by peeling it from another substrate and then forming it on the first substrate. Also, in a liquid crystal display device, a first substrate includes a matrix circuit and a peripheral driver circuit, and a second substrate is opposite to the first substrate, includes a matrix circuit and a peripheral driver circuit and has at least a size corresponding to the matrix circuit and the peripheral driver circuit.
    Type: Grant
    Filed: July 28, 2010
    Date of Patent: September 6, 2011
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Shunpei Yamazaki, Setsuo Nakajima, Yasuyuki Arai
  • Publication number: 20110207248
    Abstract: The concentration of oxygen, which causes problems such as decreases in brightness and dark spots through degradation of electrode materials, is lowered in an organic light emitting element having a layer made from an organic compound between a cathode and an anode, and in a light emitting device structured using the organic light emitting element. The average concentration of impurities contained in a layer made from an organic compound used in order to form an organic light emitting element having layers such as a hole injecting layer, a hole transporting layer, a light emitting layer, an electron transporting layer, and an electron injecting layer, is reduced to 5×1019/cm2 or less, preferably equal to or less than 1×1019/cm2, by removing the impurities with the present invention. Formation apparatuses are structured as stated in the specification in order to reduce the impurities in the organic compounds forming the organic light emitting elements.
    Type: Application
    Filed: March 17, 2011
    Publication date: August 25, 2011
    Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
    Inventors: Shunpei Yamazaki, Yasuyuki Arai
  • Publication number: 20110204360
    Abstract: In order to form a metal thin film, a silicide film, or the like between an upper-layer unit cell and a lower-layer unit cell in stacked-layer photoelectric conversion devices, a step of forming the thin film is additionally needed. Therefore, a problem such as decline in productivity of the photoelectric conversion devices occurs. A first unit cell including a single crystal semiconductor layer with a thickness of 10 ?m or less as a photoelectric conversion layer and a second unit cell including a non-single-crystal semiconductor layer as a photoelectric conversion layer, which is provided over the first unit cell, are at least included, and conductive clusters are dispersed between the unit cells. The conductive clusters are located between the lower-layer unit cell and the upper-layer unit cell to form an ohmic contact; thus, current flows between the both unit cells.
    Type: Application
    Filed: March 16, 2011
    Publication date: August 25, 2011
    Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
    Inventors: Shunpei Yamazaki, Yasuyuki Arai
  • Patent number: 8003989
    Abstract: In a semiconductor device, a first interlayer insulating layer made of an inorganic material and formed on inverse stagger type TFTs, a second interlayer insulating layer made of an organic material and formed on the first interlayer insulating layer, and a pixel electrode formed in contact with the second interlayer insulating layer are disposed on a substrate, and an input terminal portion that is electrically connected to a wiring of another substrate is provided on an end portion of the substrate. The input terminal portion includes a first layer made of the same material as that of the gate electrode and a second layer made of the same material as that of the pixel electrode. With this structure, the number of photomasks used in the photolithography method can be reduced to 5.
    Type: Grant
    Filed: October 24, 2008
    Date of Patent: August 23, 2011
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Setsuo Nakajima, Yasuyuki Arai
  • Publication number: 20110201141
    Abstract: To sophisticate a portable electronic appliance without hindering reduction of the weight and the size, more specifically, to sophisticate a liquid crystal display apparatus installed in a portable electronic appliance without hindering the mechanical strength, a liquid crystal display apparatus includes a first plastic substrate, a light-emitting device which is disposed over the first plastic substrate, resin which covers the light-emitting device, an insulating film which is in contact with the resin, a semiconductor device which is in contact with the insulating film, a liquid crystal cell which is electrically connected to the semiconductor device, and a second plastic substrate, wherein the semiconductor device and the liquid crystal cell are disposed between the first plastic substrate and the second plastic substrate.
    Type: Application
    Filed: April 28, 2011
    Publication date: August 18, 2011
    Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
    Inventors: Shunpei YAMAZAKI, Toru TAKAYAMA, Junya MARUYAMA, Yuugo GOTO, Yumiko OHNO, Akio ENDO, Yasuyuki ARAI
  • Publication number: 20110193081
    Abstract: An object is to provide a semiconductor device including an oxide semiconductor in which miniaturization is achieved while favorable characteristics are maintained. The semiconductor includes an oxide semiconductor layer, a source electrode and a drain electrode in contact with the oxide semiconductor layer, a gate electrode overlapping with the oxide semiconductor layer, a gate insulating layer provided between the oxide semiconductor layer and the gate electrode, and an insulating layer provided in contact with the oxide semiconductor layer. A side surface of the oxide semiconductor layer is in contact with the source electrode or the drain electrode. An upper surface of the oxide semiconductor layer overlaps with the source electrode or the drain electrode with the insulating layer interposed between the oxide semiconductor layer and the source electrode or the drain electrode.
    Type: Application
    Filed: February 1, 2011
    Publication date: August 11, 2011
    Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
    Inventors: Hiromichi GODO, Yasuyuki ARAI, Satohiro OKAMOTO, Mari TERASHIMA, Eriko NISHIDA, Junpei SUGAO
  • Patent number: 7995183
    Abstract: A pixel TFT formed in a pixel region is formed on a first substrate by a channel etch type reverse stagger type TFT, and patterning of a source region and a drain region, and patterning of a pixel electrode are performed by the same photomask. A driver circuit formed by using TFTs having a crystalline semiconductor layer, and an input-output terminal dependent on the driver circuit, are taken as one unit. A plurality of units are formed on a third substrate, and afterward the third substrate is partitioned into individual units, and the obtained stick drivers are mounted on the first substrate.
    Type: Grant
    Filed: September 2, 2004
    Date of Patent: August 9, 2011
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Shunpei Yamazaki, Jun Koyama, Yasuyuki Arai, Hideaki Kuwabara
  • Patent number: 7994617
    Abstract: An object of the present invention is providing a semiconductor device that is capable of improving the reliability of a semiconductor element and enhancing the mechanical strength without suppressing the scale of a circuit. The semiconductor device includes an integrated circuit sandwiched between first and second sealing films, an antenna electrically connected to the integrated circuit, the first sealing film sandwiched between a substrate and the integrated circuit, which includes a plurality of first insulating films and at least one second insulating film sandwiched therebetween, the second sealing film including a plurality of third insulating films and at least one fourth insulating film sandwiched therebetween. The second insulating film has lower stress than the first insulting film and the fourth insulating film has lower stress than the third insulating film. The first and third insulating films are inorganic insulating films.
    Type: Grant
    Filed: February 1, 2005
    Date of Patent: August 9, 2011
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Yasuyuki Arai, Yuko Tachimura, Yohei Kanno, Mai Akiba
  • Publication number: 20110180811
    Abstract: It is an object to provide a wireless chip which can increase a mechanical strength, and a wireless chip with a high durability. A wireless chip includes a transistor including a field-effect transistor, an antenna including a dielectric layer sandwiched between conductive layers, and a conductive layer connecting the chip and the antenna. Further, a wireless chip includes a transistor including a field-effect transistor, an antenna including a dielectric layer sandwiched between conductive layers, a sensor device, a conductive layer connecting the chip and the antenna, and a conductive layer connecting the chip and the sensor device. Moreover, a wireless chip includes a transistor including a field-effect transistor, an antenna including a dielectric layer sandwiched between conductive layers, a battery, a conductive layer connecting the chip and the antenna, and a conductive layer connecting the chip and the battery.
    Type: Application
    Filed: April 7, 2011
    Publication date: July 28, 2011
    Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
    Inventors: Yukie SUZUKI, Yasuyuki ARAI, Shunpei YAMAZAKI
  • Patent number: 7985664
    Abstract: The present invention relates to a film formation apparatus including a first transfer chamber having a roller for sending a substrate, a film formation chamber having a discharging electrode, a buffer chamber provided between the transfer chamber and the film formation chamber or between the film formation chambers, a slit provided in a portion where the substrate comes in and out in the buffer chamber, and a second transfer chamber having a roller for rewinding the substrate. The slit is provided with at least one touch roller, and the touch roller is in contact with a film formation surface of the substrate. In addition, the present invention also relates to a method for forming a film and a method for manufacturing a photoelectric conversion device that are performed by using such a film formation apparatus.
    Type: Grant
    Filed: November 30, 2009
    Date of Patent: July 26, 2011
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Yoshikazu Hiura, Hiroki Adachi, Hironobu Takahashi, Yuusuke Sugawara, Tatsuya Arao, Kazuo Nishi, Yasuyuki Arai
  • Patent number: 7987498
    Abstract: It is an object to provide a personal data management system which overcomes a problem of data leakage and a nonvolatile memory card applied to the personal data management system. A personal data management system includes a personal data storage medium including a communication control unit which transmits and receives data to/from a terminal, an encoding unit which encodes the received data, and a nonvolatile memory which stores the encoded data; a terminal including a communication control unit which transmits and receives data to/from the personal data storage medium and a server, a display portion which displays the received data, and an input unit; and the server including a communication control unit which transmits and receives data to/from the terminal, a decoding unit which decodes the encoded data, an identification data storage portion, and a unit which compares the decoded data with data in the identification data storage portion.
    Type: Grant
    Filed: June 20, 2007
    Date of Patent: July 26, 2011
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Yoshifumi Tanada, Shunpei Yamazaki, Yasuyuki Arai, Yoshitaka Moriya
  • Patent number: 7978399
    Abstract: A constitution of the display device of the invention is shown in the following. The display device includes a pixel unit including TFTs of which the active layer contains an organic semiconductor material for forming channel portions in the opening portions in an insulating layer arranged to meet the gale electrodes. The pixel unit further includes a contrast media foamed on the electrodes connected to the TFTs for changing the reflectivity upon the application of an electric field, or microcapsules containing electrically charged particles that change the reflectivity upon the application of an electric field. The pixel unit is sandwiched by plastic substrates, and barrier layers including an inorganic insulating material are provided between the plastic substrates and the pixel unit. The purpose of the present invention is to supply display devices which are excellent in productivity, light in weight and flexible.
    Type: Grant
    Filed: January 27, 2010
    Date of Patent: July 12, 2011
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Shunpei Yamazaki, Yasuyuki Arai
  • Patent number: 7975926
    Abstract: Although a product having such the IC chip has been diffused, information on the product may be capable of being perceived, abstracted, falsified, or the like by a third person with his external device during distribution of the product or after purchase of the product. Further, privacy may be seriously infringed. Paper money, various products, and the like are disclosed according to the present invention with an integrated circuit device having a switching memory for controlling reading and writing of information (lock/unlock of information) in order to protect the information recorded and stored in the integrated circuit such as an IC chip installed to the product or the like.
    Type: Grant
    Filed: December 22, 2004
    Date of Patent: July 12, 2011
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Shunpei Yamazaki, Yasuyuki Arai, Yohei Kanno
  • Patent number: 7977168
    Abstract: An object is to provide a method for manufacturing a semiconductor device, in which the number of photolithography steps can be reduced, the manufacturing process can be simplified, and manufacturing can be performed with high yield at low cost.
    Type: Grant
    Filed: January 22, 2010
    Date of Patent: July 12, 2011
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Tatsuya Honda, Yasuyuki Arai
  • Publication number: 20110164083
    Abstract: When using a liquid droplet ejection method, a conventional photomask is not required, however, it is required instead that a moving path of a nozzle or a substrate is controlled with accuracy at least in ejecting liquid droplets. According to the characteristics of compositions to be ejected or their pattern, such ejection conditions are desirably set as the moving rate of a nozzle or a substrate, ejection quantity, ejection distance and ejection rate of compositions, atmosphere of the space that the compositions are ejected, the temperature and moisture of the space, and heating temperature of the substrate.
    Type: Application
    Filed: March 16, 2011
    Publication date: July 7, 2011
    Inventors: Shunpei Yamazaki, Jun Koyama, Yasuyuki Arai, Shihji Maekawa, Yohei Kanno