Patents by Inventor Akihiko Yoshioka

Akihiko Yoshioka 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: 20120139106
    Abstract: A semiconductor device manufacturing technique which allows reduction of semiconductor chip size. First, a pad and other wires are formed over an insulating film. A surface protective film is formed over the insulating film including the pad and wires, and an opening is made in the surface protective film. The opening lies over the pad and exposes a surface of the pad. A bump electrode is formed over the surface protective film including the opening. Here, the pad is smaller than the bump electrode. Consequently, the wires are arranged just beneath the bump electrode in the same layer as the pad 10. In other words, the wires are arranged in space which becomes available because the pad is small enough.
    Type: Application
    Filed: February 14, 2012
    Publication date: June 7, 2012
    Inventors: Akihiko YOSHIOKA, Shinya SUZUKI
  • Patent number: 8183142
    Abstract: A semiconductor device manufacturing technique which allows reduction of semiconductor chip size. First, a pad and other wires are formed over an insulating film. A surface protective film is formed over the insulating film including the pad and wires, and an opening is made in the surface protective film. The opening lies over the pad and exposes a surface of the pad. A bump electrode is formed over the surface protective film including the opening. Here, the pad is smaller than the bump electrode. Consequently, the wires are arranged just beneath the bump electrode in the same layer as the pad 10. In other words, the wires are arranged in space which becomes available because the pad is small enough.
    Type: Grant
    Filed: April 23, 2010
    Date of Patent: May 22, 2012
    Assignee: Renesas Electronics Corporation
    Inventors: Akihiko Yoshioka, Shinya Suzuki
  • Publication number: 20100200987
    Abstract: A semiconductor device manufacturing technique which allows reduction of semiconductor chip size. First, a pad and other wires are formed over an insulating film. A surface protective film is formed over the insulating film including the pad and wires, and an opening is made in the surface protective film. The opening lies over the pad and exposes a surface of the pad. A bump electrode is formed over the surface protective film including the opening. Here, the pad is smaller than the bump electrode. Consequently, the wires are arranged just beneath the bump electrode in the same layer as the pad 10. In other words, the wires are arranged in space which becomes available because the pad is small enough.
    Type: Application
    Filed: April 23, 2010
    Publication date: August 12, 2010
    Inventors: Akihiko YOSHIOKA, Shinya Suzuki
  • Publication number: 20100149173
    Abstract: There is provided a display driver device (liquid crystal driver) causing no degradation in display image quality even when a plurality of signal lines (source lines) of a display panel are divided into a plurality of groups as a countermeasure against EMI. With a liquid crystal display driver device (the liquid crystal driver) for generating image signals to be impressed to respective signal lines of a display panel upon receiving display image data, and outputting the image signals in a lump, corresponding to every one line, according to an output timing signal inputted from outside, output amplifiers, in the last stage of the liquid crystal driver, for outputting the image signals, respectively, are divided into a plurality of groups, and the output amplifiers of respective groups are caused to undergo a periodical change in output sequence while the respective image signals are slightly staggered in output timing by the group.
    Type: Application
    Filed: February 18, 2010
    Publication date: June 17, 2010
    Inventors: Kazuhiro OKAMURA, Akihiko YOSHIOKA
  • Patent number: 7728442
    Abstract: A semiconductor device manufacturing technique which allows reduction of semiconductor chip size. First, a pad and other wires are formed over an insulating film. A surface protective film is formed over the insulating film including the pad and wires, and an opening is made in the surface protective film. The opening lies over the pad and exposes a surface of the pad. A bump electrode is formed over the surface protective film including the opening. Here, the pad is smaller than the bump electrode. Consequently, the wires are arranged just beneath the bump electrode in the same layer as the pad 10. In other words, the wires are arranged in space which becomes available because the pad is small enough.
    Type: Grant
    Filed: December 9, 2007
    Date of Patent: June 1, 2010
    Assignee: Renesas Technology Corp.
    Inventors: Akihiko Yoshioka, Shinya Suzuki
  • Patent number: 7683873
    Abstract: There is provided a display driver device (liquid crystal driver) causing no degradation in display image quality even when a plurality of signal lines (source lines) of a display panel are divided into a plurality of groups as a countermeasure against EMI. With a liquid crystal display driver device (the liquid crystal driver) for generating image signals to be impressed to respective signal lines of a display panel upon receiving display image data, and outputting the image signals in a lump, corresponding to every one line, according to an output timing signal inputted from outside, output amplifiers, in the last stage of the liquid crystal driver, for outputting the image signals, respectively, are divided into a plurality of groups, and the output amplifiers of respective groups are caused to undergo a periodical change in output sequence while the respective image signals are slightly staggered in output timing by the group.
    Type: Grant
    Filed: May 6, 2005
    Date of Patent: March 23, 2010
    Assignee: Renesas Technology Corp.
    Inventors: Kazuhiro Okamura, Akihiko Yoshioka
  • Patent number: 7538430
    Abstract: A semiconductor device manufacturing technique which allows reduction of semiconductor chip size. First, a pad and other wires are formed over an insulating film. A surface protective film is formed over the insulating film including the pad and wires, and an opening is made in the surface protective film. The opening lies over the pad and exposes a surface of the pad. A bump electrode is formed over the surface protective film including the opening. Here, the pad is smaller than the bump electrode. Consequently, the wires are arranged just beneath the bump electrode in the same layer as the pad 10. In other words, the wires are arranged in space which becomes available because the pad is small enough.
    Type: Grant
    Filed: December 9, 2007
    Date of Patent: May 26, 2009
    Assignee: Renesas Technology Corp.
    Inventors: Akihiko Yoshioka, Shinya Suzuki
  • Publication number: 20080099894
    Abstract: A semiconductor device manufacturing technique which allows reduction of semiconductor chip size. First, a pad and other wires are formed over an insulating film. A surface protective film is formed over the insulating film including the pad and wires, and an opening is made in the surface protective film. The opening lies over the pad and exposes a surface of the pad. A bump electrode is formed over the surface protective film including the opening. Here, the pad is smaller than the bump electrode. Consequently, the wires are arranged just beneath the bump electrode in the same layer as the pad 10. In other words, the wires are arranged in space which becomes available because the pad is small enough.
    Type: Application
    Filed: December 9, 2007
    Publication date: May 1, 2008
    Inventors: Akihiko YOSHIOKA, Shinya SUZUKI
  • Publication number: 20080099915
    Abstract: A semiconductor device manufacturing technique which allows reduction of semiconductor chip size. First, a pad and other wires are formed over an insulating film. A surface protective film is formed over the insulating film including the pad and wires, and an opening is made in the surface protective film. The opening lies over the pad and exposes a surface of the pad. A bump electrode is formed over the surface protective film including the opening. Here, the pad is smaller than the bump electrode. Consequently, the wires are arranged just beneath the bump electrode in the same layer as the pad 10. In other words, the wires are arranged in space which becomes available because the pad is small enough.
    Type: Application
    Filed: December 9, 2007
    Publication date: May 1, 2008
    Inventors: Akihiko YOSHIOKA, Shinya SUZUKI
  • Publication number: 20070080416
    Abstract: A semiconductor device manufacturing technique which allows reduction of semiconductor chip size. First, a pad and other wires are formed over an insulating film. A surface protective film is formed over the insulating film including the pad and wires, and an opening is made in the surface protective film. The opening lies over the pad and exposes a surface of the pad. A bump electrode is formed over the surface protective film including the opening. Here, the pad is smaller than the bump electrode. Consequently, the wires are arranged just beneath the bump electrode in the same layer as the pad 10. In other words, the wires are arranged in space which becomes available because the pad is small enough.
    Type: Application
    Filed: October 6, 2006
    Publication date: April 12, 2007
    Inventors: Akihiko Yoshioka, Shinya Suzuki
  • Publication number: 20050264548
    Abstract: There is provided a display driver device (liquid crystal driver) causing no degradation in display image quality even when a plurality of signal lines (source lines) of a display panel are divided into a plurality of groups as a countermeasure against EMI. With a liquid crystal display driver device (the liquid crystal driver) for generating image signals to be impressed to respective signal lines of a display panel upon receiving display image data, and outputting the image signals in a lump, corresponding to every one line, according to an output timing signal inputted from outside, output amplifiers, in the last stage of the liquid crystal driver, for outputting the image signals, respectively, are divided into a plurality of groups, and the output amplifiers of respective groups are caused to undergo a periodical change in output sequence while the respective image signals are slightly staggered in output timing by the group.
    Type: Application
    Filed: May 6, 2005
    Publication date: December 1, 2005
    Inventors: Kazuhiro Okamura, Akihiko Yoshioka
  • Patent number: 5745878
    Abstract: A business requirement handling apparatus is adapted to a data processing system which includes a central processing unit, a display unit and an input unit.
    Type: Grant
    Filed: April 10, 1995
    Date of Patent: April 28, 1998
    Assignee: Fujitsu Limited
    Inventors: Keiji Hashimoto, Yasuyuki Fujikawa, Akihiko Yoshioka, Jun Ginbayashi, Kazuo Yabuta, Yukio Imazu