Integration of strained Ge into advanced CMOS technology
    61.
    发明授权
    Integration of strained Ge into advanced CMOS technology 有权
    将应变锗融入先进的CMOS技术

    公开(公告)号:US07387925B2

    公开(公告)日:2008-06-17

    申请号:US11799261

    申请日:2007-04-10

    IPC分类号: H01L21/336

    摘要: A structure and method of fabrication for PFET devices in a compressively strained Ge layer is disclosed. The fabrication method of such devices is compatible with standard CMOS technology and it is fully scalable. The processing includes selective epitaxial depositions of an over 50% Ge content buffer layer, a pure Ge layer, and a SiGe top layer. Fabricated buried channel PMOS devices hosted in the compressively strained Ge layer show superior device characteristics relative to similar Si devices.

    摘要翻译: 公开了一种用于压缩应变Ge层中的PFET器件的结构和方法。 这种器件的制造方法与标准CMOS技术兼容,并且具有完全可扩展性。 该处理包括超过50%Ge含量缓冲层,纯Ge层和SiGe顶层的选择性外延沉积。 承载在压缩应变Ge层中的制造掩埋沟道PMOS器件相对于类似的Si器件显示出优异的器件特性。

    High speed Ge channel heterostructures for field effect devices
    65.
    发明授权
    High speed Ge channel heterostructures for field effect devices 有权
    用于场效应装置的高速Ge通道异质结构

    公开(公告)号:US07145167B1

    公开(公告)日:2006-12-05

    申请号:US09936320

    申请日:2000-03-11

    申请人: Jack Oon Chu

    发明人: Jack Oon Chu

    摘要: A method and a layered heterostructure for forming high mobility Ge channel field effect transistors is described incorporating a plurality of semiconductor layers on a semiconductor substrate, and a channel structure of a compressively strained epitaxial Ge layer having a higher barrier or a deeper confining quantum well and having extremely high hole mobility for complementary MODFETs and MOSFETs. The invention overcomes the problem of a limited hole mobility due to alloy scattering for a p-channel device with only a single compressively strained SiGe channel layer. This invention further provides improvements in mobility and transconductance over deep submicron state-of-the art Si pMOSFETs in addition to having a broad temperature operation regime from above room temperature (425 K) down to cryogenic low temperatures (0.4 K) where at low temperatures even high device performances are achievable.

    摘要翻译: 一种用于形成高迁移率Ge沟道场效应晶体管的方法和分层异质结构被描述为在半导体衬底上并入多个半导体层,以及具有较高势垒或更深限制量子阱的压缩应变外延Ge层的沟道结构, 对互补的MODFET和MOSFET具有极高的空穴迁移率。 本发明克服了由于仅具有单个压缩应变SiGe沟道层的p沟道器件的合金散射引起的有限空穴迁移率的问题。 本发明进一步提供了在深亚微米级的最先进的Si pMOSFETs的迁移率和跨导性方面的改进,以及从室温(425K)到低温低温(0.4K)的宽温度操作方案,其中在低温下 甚至可以实现高设备性能。

    High speed lateral heterojunction MISFETs realized by 2-dimensional bandgap engineering and methods thereof
    66.
    发明授权
    High speed lateral heterojunction MISFETs realized by 2-dimensional bandgap engineering and methods thereof 有权
    通过二维带隙工程实现的高速横向异质结MISFET及其方法

    公开(公告)号:US06927414B2

    公开(公告)日:2005-08-09

    申请号:US10462933

    申请日:2003-06-17

    摘要: A method for forming and the structure of a strained lateral channel of a field effect transistor, a field effect transistor and CMOS circuitry is described incorporating a drain, body and source region on a single crystal semiconductor substrate wherein a hetero-junction is formed between the source and body of the transistor, wherein the source region and channel are independently lattice strained with respect the body region. The invention reduces the problem of leakage current from the source region via the hetero-junction and lattice strain while independently permitting lattice strain in the channel region for increased mobility via choice of the semiconductor materials and alloy composition.

    摘要翻译: 描述了一种用于形成场效应晶体管,场效应晶体管和CMOS电路的应变横向沟道结构的方法,其在单晶半导体衬底上结合了漏极,主体和源极区域,其中在 晶体管的源极和主体,其中源极区域和沟道独立地相对于身体区域进行晶格应变。 本发明通过异质结和晶格应变来减少来自源极区的漏电流的问题,同时通过选择半导体材料和合金组成独立地允许沟道区域中的晶格应变增加迁移率。