Front side seal to prevent germanium outgassing
    12.
    发明授权
    Front side seal to prevent germanium outgassing 失效
    前侧密封防止锗脱气

    公开(公告)号:US06921709B1

    公开(公告)日:2005-07-26

    申请号:US10620194

    申请日:2003-07-15

    摘要: A method of manufacturing an integrated circuit having a gate structure above a substrate that includes germanium utilizes at least one layer as a seal. The layer advantageously can prevent back sputtering and outdiffusion. A transistor can be formed in the substrate by doping through the layer. Another layer can be provided below the first layer. Layers of silicon dioxide, silicon carbide, silicon nitride, titanium, titanium nitride, titanium/titanium nitride, tantalum nitride, and silicon carbide can be used.

    摘要翻译: 制造具有在包括锗的衬底之上的栅极结构的集成电路的方法利用至少一层作为密封。 该层有利地可以防止反溅射和扩散。 可以通过掺杂通过层在衬底中形成晶体管。 可以在第一层下面提供另一层。 可以使用二氧化硅,碳化硅,氮化硅,钛,氮化钛,钛/氮化钛,氮化钽和碳化硅的层。

    Pre-cleaning for silicidation in an SMOS process
    14.
    发明授权
    Pre-cleaning for silicidation in an SMOS process 有权
    在SMOS工艺中预硅化硅化

    公开(公告)号:US06811448B1

    公开(公告)日:2004-11-02

    申请号:US10619879

    申请日:2003-07-15

    IPC分类号: H01L21302

    摘要: A fabrication system utilizes a protocol for removing native oxide from a top surface of a wafer. An exposure to a plasma, such as a plasma containing hydrogen and argon can remove the native oxide from the top surface without causing excessive germanium contamination. The protocol can use a hydrogen fluoride dip. The hydrogen fluoride dip can be used before the plasma is used. The protocol allows better silicidation in SMOS devices.

    摘要翻译: 制造系统利用用于从晶片顶表面去除自然氧化物的协议。 暴露于等离子体,例如含有氢气和氩气的等离子体可从顶表面除去天然氧化物,而不会引起过量的锗污染。 该方案可以使用氟化氢浸渍。 在使用等离子体之前可以使用氟化氢浸渍。 该协议允许在SMOS器件中更好的硅化。

    Method of fabrication SOI devices with accurately defined monocrystalline source/drain extensions
    16.
    发明授权
    Method of fabrication SOI devices with accurately defined monocrystalline source/drain extensions 失效
    制造具有精确定义的单晶源极/漏极延伸的SOI器件的方法

    公开(公告)号:US06743689B1

    公开(公告)日:2004-06-01

    申请号:US10341427

    申请日:2003-01-14

    IPC分类号: H01L21336

    摘要: Semiconductor devices comprising fully and partially depleted SOI transistors with accurately defined monocrystalline or substantially completely monocrystalline silicon source/drain extensions are fabricated by selectively pre-amorphizing intended source/drain extensions, ion implanting dopants into the pre-amorphized regions and laser thermal annealing to effect crystallization and activation of the source/drain extensions. Embodiments include forming a gate electrode over an SOI substrate with a gate dielectric layer therebetween, forming silicon nitride sidewall spacers on the side surfaces of the gate electrode, forming source/drain regions, forming a thermal oxide layer on the gate electrode and on the source/drain regions, removing the silicon nitride sidewall spacers, pre-amorphizing the intended source/drain extension regions, ion implanting impurities into the pre-amorphized regions and laser thermal annealing to crystallize the pre-amorphized regions and to activate the source/drain extensions.

    摘要翻译: 包括具有精确定义的单晶或基本上完全单晶硅源极/漏极延伸的完全和部分耗尽的SOI晶体管的半导体器件通过将预期的源/漏延伸,离子注入掺杂剂预先非晶化以进行预非晶化区域和激光热退火来制造 源/漏扩展的结晶和激活。 实施例包括在SOI衬底之上形成栅极电介质层,在栅电极之间形成氮化硅侧壁间隔物,形成源/漏区,在栅电极和源极上形成热氧化层 漏极区域,去除氮化硅侧壁间隔物,使预期的源极/漏极延伸区域预非晶化,离子注入杂质到预非晶化区域和激光热退火以使预非晶化区域结晶并激活源极/漏极延伸部分 。

    Metal silicide gate transistors
    17.
    发明授权
    Metal silicide gate transistors 有权
    金属硅化物晶体管

    公开(公告)号:US06602781B1

    公开(公告)日:2003-08-05

    申请号:US09734207

    申请日:2000-12-12

    IPC分类号: H01L2144

    摘要: A method for implementing a self-aligned metal silicide gate is achieved by confining a metal within a recess overlying a channel and annealing to cause metal and its overlying silicon to interact to form the self-aligned metal silicide gate. A gate dielectric layer formed of oxynitride or a nitride/oxide stack is formed on the bottom and sidewalls of the recess prior to depositing the silicon. The metal is removed except for the portion of the metal in the recess. A planarization step is performed to remove the remaining unreacted silicon by chemical mechanical polishing until no silicon is detected.

    摘要翻译: 实现自对准金属硅化物栅极的方法是通过将金属限制在覆盖沟道的凹槽内并退火以使金属及其上覆的硅相互作用以形成自对准的金属硅化物栅极来实现的。 在沉积硅之前,在凹陷的底部和侧壁上形成由氧氮化物或氮化物/氧化物堆叠形成的栅极电介质层。 除了金属在凹部中的部分之外,除去金属。 进行平面化步骤以通过化学机械抛光除去剩余的未反应的硅,直到没有检测到硅。

    Silicide gate transistors
    18.
    发明授权
    Silicide gate transistors 有权
    硅化物栅极晶体管

    公开(公告)号:US06465309B1

    公开(公告)日:2002-10-15

    申请号:US09734185

    申请日:2000-12-12

    IPC分类号: H01L21336

    摘要: A semiconductor structure and method for making the same provides a gate dielectric formed of oxynitride or a nitride/oxide stack formed within a recess. Amorphous silicon is deposited on the gate dielectric within the recess and a metal is deposited on the amorphous silicon. An annealing process forms a metal silicide gate within the recess on the gate dielectric. A wider range of metal materials can be selected because the gate dielectric formed of oxynitride or a nitride/oxide stack remains stable during the silicidation process. The metal silicide gate significantly reduces the sheet resistance between the gate and gate terminal.

    摘要翻译: 半导体结构及其制造方法提供由氧氮化物形成的栅极电介质或形成在凹部内的氮化物/氧化物堆叠。 非晶硅沉积在凹槽内的栅极电介质上,金属沉积在非晶硅上。 退火工艺在栅极电介质的凹槽内形成金属硅化物栅极。 可以选择更宽范围的金属材料,因为由氮氧化物或氮化物/氧化物堆叠形成的栅极电介质在硅化过程中保持稳定。 金属硅化物栅极显着降低了栅极和栅极端子之间的薄层电阻。

    Shallow trench isolation process
    19.
    发明授权
    Shallow trench isolation process 有权
    浅沟槽隔离工艺

    公开(公告)号:US07648886B2

    公开(公告)日:2010-01-19

    申请号:US10341863

    申请日:2003-01-14

    IPC分类号: H01L21/762

    CPC分类号: H01L21/76224

    摘要: A method of manufacturing an integrated circuit (IC) utilizes a shallow trench isolation (STI) technique. The shallow trench isolation technique is used in strained silicon (SMOS) process. The liner for the trench is formed to in a low temperature process which reduces germanium outgassing. The low temperature process can be a UVO, ALD, CVD, PECVD, or HDP process.

    摘要翻译: 集成电路(IC)的制造方法利用浅沟槽隔离(STI)技术。 浅沟槽隔离技术用于应变硅(SMOS)工艺。 用于沟槽的衬垫形成为能够减少锗除气的低温过程。 低温过程可以是UVO,ALD,CVD,PECVD或HDP工艺。