Patents Assigned to Matsuhita Electric Co., Ltd.
  • Process for producing chalcopyrite type compound thin film
    Patent number: 5567469
    Abstract: A chalcopyrite compound, for instance, CuInS.sub.2 or CuInSe.sub.2, is prepared by subjecting a thin film containing copper metal, indium metal, and an indium compound or a compound which contains both indium and copper, selected from the group consisting of oxides, sulfides and selenides, with heat under a reducing atmosphere containing at least one of the Group VIb element or under an atmosphere containing a reducing compound of at least one of the Group VIb element, thereby converting said thin film into a chalcopyrite compound.
    Type: Grant
    Filed: June 1, 1995
    Date of Patent: October 22, 1996
    Assignee: Matsuhita Electric Co., Ltd.
    Inventors: Takahiro Wada, Mikihiko Nishitani, Takayuki Negami