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    • 9. 发明专利
    • Manufacturing method of semiconductor device
    • 半导体器件的制造方法
    • JP2013172083A
    • 2013-09-02
    • JP2012036377
    • 2012-02-22
    • Toshiba Corp株式会社東芝
    • KITAMURA MASAYUKISAKATA ATSUKOWADA MAKOTOYAMAZAKI YUICHIKATAGIRI MASAYUKIKAJITA AKIHIROSAKAI TADASHISAKUMA HISASHIMIZUSHIMA ICHIRO
    • H01L21/3205C23C16/26H01L21/28H01L21/285H01L21/768H01L23/532
    • H01L21/02373H01L21/76846H01L21/76855H01L21/76858H01L21/76861H01L21/76876H01L23/53276H01L2221/1089H01L2924/0002H01L2924/00
    • PROBLEM TO BE SOLVED: To provide a manufacturing method of a semiconductor device including a high quality graphene having a lower resistivity than the conventional and fewer crystal defects as much as possible.SOLUTION: The manufacturing method of a semiconductor device comprises a step of forming a promoter layer having a face-centered cubic structure above the surface of a semiconductor substrate. The promoter layer is formed so that the (111) plane of the face-centered cubic structure is oriented in parallel with the surface of a semiconductor substrate. A catalyst layer having a face-centered cubic structure is formed on the promoter layer. The catalyst layer is formed so that the (111) plane of the face-centered cubic structure is oriented in parallel with the surface of a semiconductor substrate. A portion of the promoter layer in contact with the catalyst layer has a face-centered cubic structure. The catalyst layer is subjected to oxidation treatment and then subjected to reduction treatment thus planarizing the exposed surface of the catalyst layer. Finally, a graphene layer is formed on the catalyst layer.
    • 要解决的问题:提供一种半导体器件的制造方法,该半导体器件包括尽可能多的具有比常规的更低的电阻率和更少的晶体缺陷的高质量石墨烯。解决方案:半导体器件的制造方法包括以下步骤: 启动子层,其在半导体衬底的表面上方具有面心立方结构。 形成促进剂层使得面心立方结构的(111)面与半导体衬底的表面平行取向。 在促进剂层上形成具有面心立方结构的催化剂层。 形成催化剂层,使得面心立方结构的(111)面与半导体衬底的表面平行取向。 与催化剂层接触的助催化剂层的一部分具有面心立方结构。 对催化剂层进行氧化处理,然后进行还原处理,从而使催化剂层的暴露表面平坦化。 最后,在催化剂层上形成石墨烯层。