Patents by Inventor Chiko Yorita

Chiko Yorita 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: 20070176298
    Abstract: Heating elements different in heat generating timing are laminated in a stacked state, and the heating element close to a wiring substrate is allowed to function as a heat diffusion plate for another heating element.
    Type: Application
    Filed: January 10, 2007
    Publication date: August 2, 2007
    Applicants: Hitachi, Ltd., Renesas Technology Corp.
    Inventors: Yasuo Osone, Kenya Kawano, Chiko Yorita, Yu Hasegawa, Yuji Shirai, Naotaka Tanaka, Seiichi Tomoi, Hiroshi Okabe
  • Publication number: 20070040255
    Abstract: A semiconductor device capable of reducing the thermal resistance in a flip chip packaging structure while achieving both the high radiation performance and manufacturing readiness without increasing the manufacturing cost is provided. In a semiconductor device having a semiconductor circuit for power amplification and a control circuit of the semiconductor circuit laminated on a multilayer circuit board, the semiconductor circuit for power amplification and the control circuit are aligned in parallel on the same semiconductor element, and the semiconductor element is flip-chip connected on the multilayer circuit board. Further, a second semiconductor element mounted in addition to the first semiconductor element and all components and submodules are flip-chip connected. Also, a plurality of bumps are united in order to improve the radiation performance and thermal vias of the multilayer circuit board are formed in second and lower layers of the wiring layers in the multilayer circuit board.
    Type: Application
    Filed: August 16, 2006
    Publication date: February 22, 2007
    Inventors: Yasuo Osone, Chiko Yorita, Kenya Kawano, Yu Hasegawa, Yuji Shirai, Seiichi Tomoi, Tsuneo Endou, Satoru Konishi, Hirokazu Nakajima