Patents by Inventor Wakao Miyazawa

Wakao Miyazawa 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).

  • Patent number: 7526858
    Abstract: The invention provides a manufacturing apparatus in which inter-substrate transfer of a thin film circuit or a thin film element can automatically be performed. An apparatus for manufacturing electronic devices includes a laser device to generate laser beams, a masking unit having a masking substrate to shape beam spots of the laser beams, a first stage to place a first substrate, which carries a object to be transferred, a second stage to place a second substrate, to which the object to be transferred is transferred, an adhesive agent applying unit to apply an adhesive agent on the object to be transferred or on a transferred position on the second substrate, and a control unit to control the actions of the first and the second stages.
    Type: Grant
    Filed: October 4, 2006
    Date of Patent: May 5, 2009
    Assignee: Seiko Epson Corporation
    Inventors: Masashi Kasuga, Tomoyuki Kamakura, Wakao Miyazawa, Fukumi Tsuchihashi
  • Patent number: 7468308
    Abstract: A transferring method including providing a substrate, forming a transferred layer over the substrate, joining a transfer member to the transferred layer, and removing the transferred layer from the substrate. The transferring method further includes transferring the transferred layer to the transfer member and reusing the substrate for another transfer. The transferring method may also include providing a substrate, forming a separation layer over the substrate, forming a transferred layer over the separation layer, and partly cleaving the separation layer such that a part of the transferred layer is transferred to a transfer member in a given pattern. The transferring method may also include joining a transfer member to the transferred layer, removing the transferred layer from the substrate and transferring the transferred layer to the transfer member, these of which constitute a transfer process, the transfer process being repeatedly performed.
    Type: Grant
    Filed: September 5, 2006
    Date of Patent: December 23, 2008
    Assignee: Seiko Epson Corporation
    Inventors: Tatsuya Shimoda, Satoshi Inoue, Wakao Miyazawa
  • Patent number: 7341894
    Abstract: In a semiconductor device made by forming functional elements on a first substrate, transferring the element chip onto a second substrate, and connecting first pads on the element chip to second pads on the second substrate, the area or the width of the first is increased. The first pads can be securely connected to the second pads even when misalignment occurs during the separating and transferring processes. Only the first pads are formed on a surface of the element chip at the second-substrate-side. The functional elements are formed to be farther from the second substrate than the first pads. Alternatively, only the first pads are formed on a surface of the element chip remote from the second substrate, and the functional elements are formed to be closer to the second substrate than the first pads. Alternatively, the first pads are formed on both the surface of the element chip at the second-substrate-side and the surface of the element chip remote from the second substrate.
    Type: Grant
    Filed: August 4, 2005
    Date of Patent: March 11, 2008
    Assignee: Seiko Epson Corporation
    Inventors: Mitsumi Kimura, Sumio Utsunomiya, Hiroyuki Hara, Wakao Miyazawa
  • Patent number: 7285476
    Abstract: A transferring method including providing a substrate, forming a transferred layer over the substrate, joining a transfer member to the transferred layer, and removing the transferred layer from the substrate. The transferring method further includes transferring the transferred layer to the transfer member and reusing the substrate for another transfer. The transferring method may also include providing a substrate, forming a separation layer over the substrate, forming a transferred layer over the separation layer, and partly cleaving the separation layer such that a part of the transferred layer is transferred to a transfer member in a given pattern. The transferring method may also include joining a transfer member to the transferred layer, removing the transferred layer from the substrate and transferring the transferred layer to the transfer member, these of which constitute a transfer process, the transfer process being repeatedly performed.
    Type: Grant
    Filed: October 4, 2005
    Date of Patent: October 23, 2007
    Assignee: Seiko Epson Corporation
    Inventors: Tatsuya Shimoda, Satoshi Inoue, Wakao Miyazawa
  • Patent number: 7229859
    Abstract: Any one of an insulating film forming a TFT, a silicon film and a conductive film is formed by applying a solution and annealing it. In a spin coater (102), a coating solution containing a thin film component which is supplied from a solution storage section (105) is spin-coated onto a substrate. The substrate after coating the coating solution is annealed in an annealing section (103) to form a coating film on the substrate. Additional laser annealing improves one of film characteristics, i.e., crystallinity, density and adhesiveness. Application of the coating solution or a resist by an ink jet process increases utilization of the solution and permits forming a patterned coating film. Because a thin film device in accordance with the present invention is inexpensive and has a high throughput, TFT production by a production system having high utilization of the coating solution drastically reduces initial investment and production cost of a liquid crystal display device.
    Type: Grant
    Filed: January 29, 2003
    Date of Patent: June 12, 2007
    Assignee: Seiko Epson Corporation
    Inventors: Ichio Yudasaka, Tatsuya Shimoda, Sadao Kanbe, Wakao Miyazawa
  • Publication number: 20070028444
    Abstract: The invention provides a manufacturing apparatus in which inter-substrate transfer of a thin film circuit or a thin film element can automatically be performed. An apparatus for manufacturing electronic devices includes a laser device to generate laser beams, a masking unit having a masking substrate to shape beam spots of the laser beams, a first stage to place a first substrate, which carries a object to be transferred, a second stage to place a second substrate, to which the object to be transferred is transferred, an adhesive agent applying unit to apply an adhesive agent on the object to be transferred or on a transferred position on the second substrate, and a control unit to control the actions of the first and the second stages.
    Type: Application
    Filed: October 4, 2006
    Publication date: February 8, 2007
    Applicant: Seiko Epson Corporation
    Inventors: Masashi Kasuga, Tomoyuki Kamakura, Wakao Miyazawa, Fukumi Tsuchihashi
  • Publication number: 20070010067
    Abstract: A transferring method including providing a substrate, forming a transferred layer over the substrate, joining a transfer member to the transferred layer, and removing the transferred layer from the substrate. The transferring method further includes transferring the transferred layer to the transfer member and reusing the substrate for another transfer. The transferring method may also include providing a substrate, forming a separation layer over the substrate, forming a transferred layer over the separation layer, and partly cleaving the separation layer such that a part of the transferred layer is transferred to a transfer member in a given pattern. The transferring method may also include joining a transfer member to the transferred layer, removing the transferred layer from the substrate and transferring the transferred layer to the transfer member, these of which constitute a transfer process, the transfer process being repeatedly performed.
    Type: Application
    Filed: September 5, 2006
    Publication date: January 11, 2007
    Applicant: Seiko Epson Corporation
    Inventors: Tatsuya Shimoda, Satoshi Inoue, Wakao Miyazawa
  • Patent number: 7127810
    Abstract: A method of manufacturing an electronic device includes providing a mask substrate, a first substrate on which an object to be transferred is formed, and a second substrate to which the object is to be transferred, adjusting positions of the mask substrate, the first substrate and the second substrate so that an alignment mark formed on one of the substrates (a reference substrate) and alignment marks formed on other two of the substrates are aligned with each other, and transferring the object to be transferred from the first substrate to the second substrate, the transferring step including irradiating the object to be transferred from the first substrate with light transmitted through the mask substrate.
    Type: Grant
    Filed: April 23, 2003
    Date of Patent: October 31, 2006
    Assignee: Seiko Epson Corporation
    Inventors: Masashi Kasuga, Tomoyuki Kamakura, Wakao Miyazawa, Fukumi Tsuchihashi
  • Patent number: 7101729
    Abstract: The present invention aims to manufacture a large size semiconductor device with the inter-substrate transcription technology of thin film circuits. Enlargement is enabled by disposing a plurality of second substrates (21) in a tile shape. As the second substrate (21), a print substrate or flexible print circuit having double-sided wiring or multilayer wiring is employed. The plurality of second substrates (21) is driven independently, and the plurality of second substrates (21) is made to mutually overlap, and a drive circuit (23) is disposed at such overlapping portion. Moreover, the plurality of second substrates (21) is made to mutually overlap, and the mutual circuits are connected at such overlapping portion.
    Type: Grant
    Filed: March 20, 2003
    Date of Patent: September 5, 2006
    Assignee: Seiko Epson Corporation
    Inventors: Mutsumi Kimura, Satoshi Inoue, Sumio Utsunomiya, Hiroyuki Hara, Wakao Miyazawa
  • Patent number: 7094665
    Abstract: A transferring method including providing a substrate, forming a transferred layer over the substrate, joining a transfer member to the transferred layer, and removing the transferred layer from the substrate. The transferring method further includes transferring the transferred layer to the transfer member and reusing the substrate for another transfer. The transferring method may also include providing a substrate, forming a separation layer over the substrate, forming a transferred layer over the separation layer, and partly cleaving the separation layer such that a part of the transferred layer is transferred to a transfer member in a given pattern. The transferring method may also include joining a transfer member to the transferred layer, removing the transferred layer from the substrate and transferring the transferred layer to the transfer member, these of which constitute a transfer process, the transfer process being repeatedly performed.
    Type: Grant
    Filed: May 24, 2004
    Date of Patent: August 22, 2006
    Assignee: Seiko Epson Corporation
    Inventors: Tatsuya Shimoda, Satoshi Inoue, Wakao Miyazawa
  • Patent number: 7090139
    Abstract: The invention provides an IC card in which it is difficult to separate IC chips from the IC card. In accordance with the invention, an IC card formed by laminating a plurality of substrates can include a sensor for identifying an authorized person, a signal processing circuit for processing the identification based on an output from the sensor and a card-shaped card medium containing the sensor and the signal processing circuit. At least the signal processing circuit can include a thin film circuit which is sufficiently thinner than the card medium and contains a material which is dissolvable equally to or more than the card medium.
    Type: Grant
    Filed: March 25, 2003
    Date of Patent: August 15, 2006
    Assignee: Seiko Epson Corporation
    Inventors: Masashi Kasuga, Wakao Miyazawa, Fukumi Tsuchihashi, Tomoyuki Kamakura
  • Patent number: 7067337
    Abstract: Any one of an insulating film forming a TFT, a silicon film and a conductive film is formed by applying a solution and annealing it. In a spin coater (102), a coating solution containing a thin film component which is supplied from a solution storage section (105) is spin-coated onto a substrate. The substrate after coating the coating solution is annealed in an annealing section (103) to form a coating film on the substrate. Additional laser annealing improves one of film characteristics, i.e., crystallinity, density and adhesiveness. Application of the coating solution or a resist by an ink jet process increases utilization of the solution and permits forming a patterned coating film. Because a thin film device in accordance with the present invention is inexpensive and has a high throughput, TFT production by a production system having high utilization of the coating solution drastically reduces initial investment and production cost of a liquid crystal display device.
    Type: Grant
    Filed: July 9, 2002
    Date of Patent: June 27, 2006
    Assignee: Seiko Epson Corporation
    Inventors: Ichio Yudasaka, Tatsuya Shimoda, Sadao Kanbe, Wakao Miyazawa
  • Publication number: 20060030122
    Abstract: A transferring method including providing a substrate, forming a transferred layer over the substrate, joining a transfer member to the transferred layer, and removing the transferred layer from the substrate. The transferring method further includes transferring the transferred layer to the transfer member and reusing the substrate for another transfer. The transferring method may also include providing a substrate, forming a separation layer over the substrate, forming a transferred layer over the separation layer, and partly cleaving the separation layer such that a part of the transferred layer is transferred to a transfer member in a given pattern. The transferring method may also include joining a transfer member to the transferred layer, removing the transferred layer from the substrate and transferring the transferred layer to the transfer member, these of which constitute a transfer process, the transfer process being repeatedly performed.
    Type: Application
    Filed: October 4, 2005
    Publication date: February 9, 2006
    Applicant: Seiko Epson Corporation
    Inventors: Tatsuya Shimoda, Satoshi Inoue, Wakao Miyazawa
  • Publication number: 20050280037
    Abstract: In a semiconductor device made by forming functional elements on a first substrate, transferring the element chip onto a second substrate, and connecting first pads on the element chip to second pads on the second substrate, the area or the width of the first is increased. The first pads can be securely connected to the second pads even when misalignment occurs during the separating and transferring processes. Only the first pads are formed on a surface of the element chip at the second-substrate-side. The functional elements are formed to be farther from the second substrate than the first pads. Alternatively, only the first pads are formed on a surface of the element chip remote from the second substrate, and the functional elements are formed to be closer to the second substrate than the first pads. Alternatively, the first pads are formed on both the surface of the element chip at the second-substrate-side and the surface of the element chip remote from the second substrate.
    Type: Application
    Filed: August 4, 2005
    Publication date: December 22, 2005
    Applicant: Seiko Epson Corporation
    Inventors: Mutsumi Kimura, Sumio Utsunomiya, Hiroyuki Hara, Wakao Miyazawa
  • Patent number: 6878607
    Abstract: A thin film device fabrication method in which a thin film device formed on a substrate are transferred to a primary destination-of-transfer part and then the thin film device is transferred to a secondary destination-of-transfer part. A first separation layer (120) made of such a material as amorphous silicon is provided on a substrate (100) which allows passage of laser. A thin film device (140) such as TFTs are formed on the substrate (100). Further, a second separation layer (160) such as a hot-melt adhesive layer is formed on the thin film devices (140), and a primary destination-of-transfer part (180) is mounted thereon. The bonding strength of the first separation layer is weakened by irradiation with light, and the substrate (100) is removed. Thus, the thin film device (140) is transferred to the primary destination-of-transfer part. Then, a secondary destination-of-transfer part (200) is attached onto the bottom of an exposed part of the thin film device (140) via an adhesive layer (190).
    Type: Grant
    Filed: October 2, 2002
    Date of Patent: April 12, 2005
    Assignee: Seiko Epson Corporation
    Inventors: Satoshi Inoue, Tatsuya Shimoda, Wakao Miyazawa
  • Patent number: 6818530
    Abstract: A transferring method including providing a substrate, forming a transferred layer over the substrate, joining a transfer member to the transferred layer, and removing the transferred layer from the substrate. The transferring method further includes transferring the transferred layer to the transfer member and reusing the substrate for another transfer. The transferring method may also include providing a substrate, forming a separation layer over the substrate, forming a transferred layer over the separation layer, and partly cleaving the separation layer such that a part of the transferred layer is transferred to a transfer member in a given pattern. The transferring method may also include joining a transfer member to the transferred layer, removing the transferred layer from the substrate and transferring the transferred layer to the transfer member, these of which constitute a transfer process, the transfer process being repeatedly performed.
    Type: Grant
    Filed: April 23, 2003
    Date of Patent: November 16, 2004
    Assignee: Seiko Epson Corporation
    Inventors: Tatsuya Shimoda, Satoshi Inoue, Wakao Miyazawa
  • Publication number: 20040219762
    Abstract: A transferring method including providing a substrate, forming a transferred layer over the substrate, joining a transfer member to the transferred layer, and removing the transferred layer from the substrate. The transferring method further includes transferring the transferred layer to the transfer member and reusing the substrate for another transfer. The transferring method may also include providing a substrate, forming a separation layer over the substrate, forming a transferred layer over the separation layer, and partly cleaving the separation layer such that a part of the transferred layer is transferred to a transfer member in a given pattern. The transferring method may also include joining a transfer member to the transferred layer, removing the transferred layer from the substrate and transferring the transferred layer to the transfer member, these of which constitute a transfer process, the transfer process being repeatedly performed.
    Type: Application
    Filed: May 24, 2004
    Publication date: November 4, 2004
    Applicant: Seiko Epson Corporation
    Inventors: Tatsuya Shimoda, Satoshi Inoue, Wakao Miyazawa
  • Publication number: 20040080032
    Abstract: The present invention aims to manufacture a large size semiconductor device with the inter-substrate transcription technology of thin film circuits. Enlargement is enabled by disposing a plurality of second substrates (21) in a tile shape. As the second substrate (21), a print substrate or flexible print circuit having double-sided wiring or multilayer wiring is employed. The plurality of second substrates (21) is driven independently, and the plurality of second substrates (21) is made to mutually overlap, and a drive circuit (23) is disposed at such overlapping portion. Moreover, the plurality of second substrates (21) is made to mutually overlap, and the mutual circuits are connected at such overlapping portion.
    Type: Application
    Filed: March 20, 2003
    Publication date: April 29, 2004
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Mutsumi Kimura, Satoshi Inoue, Sumio Utsunomiya, Hiroyuki Hara, Wakao Miyazawa
  • Publication number: 20040000368
    Abstract: To provide a manufacturing apparatus in which inter-substrate transfer of a thin film circuit or a thin film element can automatically be performed.
    Type: Application
    Filed: April 23, 2003
    Publication date: January 1, 2004
    Applicant: Seiko Epson Corporation
    Inventors: Masashi Kasuga, Tomoyuki Kamakura, Wakao Miyazawa, Fukumi Tsuchihashi
  • Publication number: 20030224582
    Abstract: A transferring method including providing a substrate, forming a transferred layer over the substrate, joining a transfer member to the transferred layer, and removing the transferred layer from the substrate. The transferring method further includes transferring the transferred layer to the transfer member and reusing the substrate for another transfer. The transferring method may also include providing a substrate, forming a separation layer over the substrate, forming a transferred layer over the separation layer, and partly cleaving the separation layer such that a part of the transferred layer is transferred to a transfer member in a given pattern. The transferring method may also include joining a transfer member to the transferred layer, removing the transferred layer from the substrate and transferring the transferred layer to the transfer member, these of which constitute a transfer process, the transfer process being repeatedly performed.
    Type: Application
    Filed: April 23, 2003
    Publication date: December 4, 2003
    Applicant: Seiko Epson Corporation
    Inventors: Tatsuya Shimoda, Satoshi Inoue, Wakao Miyazawa