Copper pellet for reducing electromigration effects associated with a
conductive via in a semiconductor device
    2.
    发明授权
    Copper pellet for reducing electromigration effects associated with a conductive via in a semiconductor device 失效
    用于减少与半导体器件中的导电通孔相关的电迁移效应的铜芯片

    公开(公告)号:US5646448A

    公开(公告)日:1997-07-08

    申请号:US699821

    申请日:1996-08-19

    摘要: A multilayer semiconductor structure includes a conductive via. The conductive via includes a pellet of metal having a high resistance to electromigration. The pellet is made from a conformal layer of copper or gold deposited over the via to form a copper or gold reservoir or contact located in the via. A barrier layer is provided between the reservoir and an insulating layer to prevent the pellet from diffusing into the insulating layer. The pellet can be formed by selective deposition or by etching a conformal layer. The conformal layer can be deposited by sputtering, collimated sputtering, chemical vapor deposition (CVD), dipping, evaporating, or by other means. The barrier layer and pellet may be etched by anisotropic dry etching, plasma-assisted etching, or other layer removal techniques.

    摘要翻译: 多层半导体结构包括导电通孔。 导电通孔包括具有高抗电迁移性的金属颗粒。 沉淀物由沉积在通孔上的铜或金的保形层制成,以形成位于通孔中的铜或金储存器或触点。 在储存器和绝缘层之间设置阻挡层以防止颗粒扩散到绝缘层中。 颗粒可以通过选择性沉积或通过蚀刻保形层形成。 可以通过溅射,准直溅射,化学气相沉积(CVD),浸渍,蒸发或其它方式沉积共形层。 可以通过各向异性干蚀刻,等离子体辅助蚀刻或其它层去除技术来蚀刻阻挡层和颗粒。

    MOSFET with asymmetrical extension implant
    4.
    发明授权
    MOSFET with asymmetrical extension implant 有权
    具有不对称延伸植入物的MOSFET

    公开(公告)号:US08193592B2

    公开(公告)日:2012-06-05

    申请号:US12904662

    申请日:2010-10-14

    摘要: A method for fabricating a MOSFET (e.g., a PMOS FET) includes providing a semiconductor substrate having surface characterized by a (110) surface orientation or (110) sidewall surfaces, forming a gate structure on the surface, and forming a source extension and a drain extension in the semiconductor substrate asymmetrically positioned with respect to the gate structure. An ion implantation process is performed at a non-zero tilt angle. At least one spacer and the gate electrode mask a portion of the surface during the ion implantation process such that the source extension and drain extension are asymmetrically positioned with respect to the gate structure by an asymmetry measure.

    摘要翻译: 一种用于制造MOSFET(例如,PMOS FET)的方法包括提供具有由(110)表面取向或(110)侧壁表面表征的表面的半导体衬底,在表面上形成栅极结构,并形成源延伸和 半导体衬底中的漏极延伸部相对于栅极结构非对称地定位。 以非零倾角进行离子注入工艺。 在离子注入过程期间,至少一个间隔物和栅电极掩盖表面的一部分,使得源极延伸和漏极延伸通过不对称度量相对于栅极结构不对称地定位。

    Stressed field effect transistor and methods for its fabrication
    5.
    发明授权
    Stressed field effect transistor and methods for its fabrication 有权
    强调场效应晶体管及其制造方法

    公开(公告)号:US08148214B2

    公开(公告)日:2012-04-03

    申请号:US12360961

    申请日:2009-01-28

    IPC分类号: H01L21/00

    摘要: A stressed field effect transistor and methods for its fabrication are provided. The field effect transistor comprises a silicon substrate with a gate insulator overlying the silicon substrate. A gate electrode overlies the gate insulator and defines a channel region in the silicon substrate underlying the gate electrode. A first silicon germanium region having a first thickness is embedded in the silicon substrate and contacts the channel region. A second silicon germanium region having a second thickness greater than the first thickness and spaced apart from the channel region is also embedded in the silicon substrate.

    摘要翻译: 提供了一种应力场效应晶体管及其制造方法。 场效应晶体管包括具有覆盖硅衬底的栅极绝缘体的硅衬底。 栅电极覆盖栅极绝缘体,并且在栅电极下面的硅衬底中限定沟道区。 具有第一厚度的第一硅锗区域嵌入在硅衬底中并与沟道区域接触。 具有大于第一厚度并且与沟道区间隔开的第二厚度的第二硅锗区域也嵌入在硅衬底中。

    EMBEDDED SILICON GERMANIUM SOURCE DRAIN STRUCTURE WITH REDUCED SILICIDE ENCROACHMENT AND CONTACT RESISTANCE AND ENHANCED CHANNEL MOBILITY
    6.
    发明申请
    EMBEDDED SILICON GERMANIUM SOURCE DRAIN STRUCTURE WITH REDUCED SILICIDE ENCROACHMENT AND CONTACT RESISTANCE AND ENHANCED CHANNEL MOBILITY 有权
    嵌入式硅锗锗排水结构,具有降低的硅胶密封性和接触电阻和增强的通道移动性

    公开(公告)号:US20110062498A1

    公开(公告)日:2011-03-17

    申请号:US12561685

    申请日:2009-09-17

    IPC分类号: H01L29/772 H01L21/335

    摘要: Semiconductor devices with embedded silicon germanium source/drain regions are formed with enhanced channel mobility, reduced contact resistance, and reduced silicide encroachment. Embodiments include embedded silicon germanium source/drain regions with a first portion having a relatively high germanium concentration, e.g., about 25 to about 35 at. %, an overlying second portion having a first layer with a relatively low germanium concentration, e.g., about 10 to about 20 at. %, and a second layer having a germanium concentration greater than that of the first layer. Embodiments include forming additional layers on the second layer, each odd numbered layer having relatively low germanium concentration, at. % germanium, and each even numbered layer having a relatively high germanium concentration. Embodiments include forming the first region at a thickness of about 400 Å to 28 about 800 Å, and the first and second layers at a thickness of about 30 Å to about 70 Å.

    摘要翻译: 具有嵌入式硅锗源极/漏极区域的半导体器件形成具有增强的沟道迁移率,降低的接触电阻和减少的硅化物侵蚀。 实施例包括具有较高锗浓度的第一部分的嵌入式硅锗源/漏区,例如约25至约35at。 %,上覆的第二部分具有具有相对低的锗浓度的第一层,例如约10至约20at。 %,第二层的锗浓度大于第一层的浓度。 实施例包括在第二层上形成附加层,每个奇数层具有较低的锗浓度。 %锗,并且每个偶数层具有较高的锗浓度。 实施例包括形成厚度为约400至28约800的第一区域,第一和第二层的厚度为约至大约为70埃。

    Stacking fault reduction in epitaxially grown silicon
    7.
    发明授权
    Stacking fault reduction in epitaxially grown silicon 有权
    堆积外延生长硅中的断层减少

    公开(公告)号:US07893493B2

    公开(公告)日:2011-02-22

    申请号:US11456326

    申请日:2006-07-10

    摘要: An intermediate hybrid surface orientation structure may include a silicon-on-insulator (SOI) substrate adhered to a bulk silicon substrate, the silicon of the SOI substrate having a different surface orientation than that of the bulk silicon substrate, and a reachthrough region extending through the SOI substrate to the bulk silicon substrate, the reachthrough region including a silicon nitride liner over a silicon oxide liner and a silicon epitaxially grown from the bulk silicon substrate, the epitaxially grown silicon extending into an undercut into the silicon oxide liner under the silicon nitride liner, wherein the epitaxially grown silicon is substantially stacking fault free.

    摘要翻译: 中间混合表面取向结构可以包括粘附到体硅衬底上的绝缘体上硅(SOI)衬底,SOI衬底的硅具有与体硅衬底不同的表面取向,并且穿透区域延伸穿过 SOI衬底到体硅衬底,穿透区域包括在氧化硅衬底上的氮化硅衬垫和从体硅衬底外延生长的硅,外延生长的硅延伸到底切到氮化硅之下的氧化硅衬底中 衬垫,其中外延生长的硅基本上是无层错的。