Fabrication of germanium nanowire transistors
    89.
    发明授权
    Fabrication of germanium nanowire transistors 有权
    锗纳米线晶体管的制造

    公开(公告)号:US08110458B2

    公开(公告)日:2012-02-07

    申请号:US12762585

    申请日:2010-04-19

    IPC分类号: H01L21/336

    摘要: In general, in one aspect, a method includes using the Germanium nanowire as building block for high performance logic, memory and low dimensional quantum effect devices. The Germanium nanowire channel and the SiGe anchoring regions are formed simultaneously through preferential Si oxidation of epitaxial Silicon Germanium epi layer. The placement of the germanium nanowires is accomplished using a Si fin as a template and the germanium nanowire is held on Si substrate through SiGe anchors created by masking the two ends of the fins. High dielectric constant gate oxide and work function metals wrap around the Germanium nanowire for gate-all-around electrostatic channel on/off control, while the Germanium nanowire provides high carrier mobility in the transistor channel region. The germanium nanowire transistors enable high performance, low voltage (low power consumption) operation of logic and memory devices.

    摘要翻译: 通常,在一个方面,一种方法包括使用锗纳米线作为高性能逻辑,存储器和低维量子效应器件的构建块。 锗纳米线通道和SiGe锚定区域通过外延硅锗外延层的优先Si氧化同时形成。 使用Si翅片作为模板来实现锗纳米线的放置,并且锗纳米线通过掩蔽翅片的两端而形成的SiGe锚定件保持在Si衬底上。 高介电常数栅极氧化物和功函数金属缠绕在锗纳米线上,用于门极全静电通道开/关控制,而锗纳米线在晶体管沟道区域提供高载流子迁移率。 锗纳米线晶体管可实现逻辑和存储器件的高性能,低电压(低功耗)操作。