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    • 9. 发明授权
    • Graphene transistor with a self-aligned gate
    • 具有自对准栅极的石墨烯晶体管
    • US08344358B2
    • 2013-01-01
    • US12876454
    • 2010-09-07
    • Phaedon AvourisDamon B. FarmerYu-Ming LinYu Zhu
    • Phaedon AvourisDamon B. FarmerYu-Ming LinYu Zhu
    • H01L29/76
    • H01L29/1606H01L29/41733H01L29/42384H01L29/4908H01L29/66742H01L29/778H01L29/78684
    • A graphene-based field effect transistor includes source and drain electrodes that are self-aligned to a gate electrode. A stack of a seed layer and a dielectric metal oxide layer is deposited over a patterned graphene layer. A conductive material stack of a first metal portion and a second metal portion is formed above the dielectric metal oxide layer. The first metal portion is laterally etched employing the second metal portion, and exposed portions of the dielectric metal oxide layer are removed to form a gate structure in which the second metal portion overhangs the first metal portion. The seed layer is removed and the overhang is employed to shadow proximal regions around the gate structure during a directional deposition process to form source and drain electrodes that are self-aligned and minimally laterally spaced from edges of the gate electrode.
    • 基于石墨烯的场效应晶体管包括与栅电极自对准的源极和漏极。 在图案化的石墨烯层上沉积种子层和电介质金属氧化物层的堆叠。 第一金属部分和第二金属部分的导电材料堆叠形成在电介质金属氧化物层的上方。 使用第二金属部分横向蚀刻第一金属部分,去除电介质金属氧化物层的暴露部分以形成其中第二金属部分悬垂在第一金属部分上的栅极结构。 移除晶种层并且在定向沉积工艺期间使用突出部来遮蔽栅极结构周围的近端区域,以形成与栅电极的边缘自对准且最小程度地横向间隔的源电极和漏电极。
    • 10. 发明申请
    • METAL-FREE INTEGRATED CIRCUITS COMPRISING GRAPHENE AND CARBON NANOTUBES
    • 包含石墨和碳纳米管的无金属集成电路
    • US20120326129A1
    • 2012-12-27
    • US13604254
    • 2012-09-05
    • Yu-Ming LinJeng-Bang Yau
    • Yu-Ming LinJeng-Bang Yau
    • H01L29/78
    • H01L29/1606B82Y10/00H01L27/124H01L29/0665H01L29/45H01L29/4908H01L29/66742H01L29/7781H01L29/78618H01L29/78684
    • An integrated circuit includes a graphene layer, the graphene layer comprising a region of undoped graphene, the undoped graphene comprising a channel of a transistor, and a region of doped graphene, the doped graphene comprising a contact of the transistor; and a gate of the transistor, the gate comprising a carbon nanotube film. A method of fabricating an integrated circuit comprising graphene and carbon nanotubes, includes forming a graphene layer; doping a portion of the graphene layer, resulting in doped graphene and undoped graphene; forming a carbon nanotube film; and etching the carbon nanotube film to form a gate of a transistor, wherein the transistor further comprises a channel comprising the undoped graphene and a contact comprising the doped graphene. A transistor includes a gate, the gate comprising a carbon nanotube film; a channel, the channel comprising undoped graphene; and a contact, the contact comprising doped graphene.
    • 集成电路包括石墨烯层,所述石墨烯层包括未掺杂的石墨烯的区域,所述未掺杂的石墨烯包括晶体管的沟道和掺杂的石墨烯的区域,所述掺杂的石墨烯包括所述晶体管的接触; 和晶体管的栅极,所述栅极包括碳纳米管膜。 一种制造包括石墨烯和碳纳米管的集成电路的方法,包括形成石墨烯层; 掺杂一部分石墨烯层,导致掺杂的石墨烯和未掺杂的石墨烯; 形成碳纳米管膜; 以及蚀刻所述碳纳米管膜以形成晶体管的栅极,其中所述晶体管还包括包含所述未掺杂的石墨烯的沟道和包含所述掺杂石墨烯的接触。 晶体管包括栅极,栅极包括碳纳米管膜; 通道,通道包括未掺杂的石墨烯; 和触点,所述触点包括掺杂的石墨烯。