Method for manufacturing a semiconductor component that inhibits formation of wormholes
    1.
    发明授权
    Method for manufacturing a semiconductor component that inhibits formation of wormholes 有权
    制造抑制虫洞形成的半导体部件的方法

    公开(公告)号:US07217660B1

    公开(公告)日:2007-05-15

    申请号:US11109964

    申请日:2005-04-19

    IPC分类号: H01L21/22

    摘要: A method for manufacturing a semiconductor component that inhibits formation of wormholes in a semiconductor substrate. A contact opening is formed in a dielectric layer disposed on a semiconductor substrate. The contact opening exposes a portion of the semiconductor substrate. A sacrificial layer of oxide is formed on the exposed portion of the semiconductor substrate and along the sidewalls of the contact opening. Silane is reacted with tungsten hexafluoride to form a hydrofluoric acid vapor and tungsten. The hydrofluoric acid vapor etches away the sacrificial oxide layer and a thin layer of tungsten is formed on the exposed portion of the semiconductor substrate. After forming the thin layer of tungsten, the reactants may be changed to more quickly fill the contact opening with tungsten.

    摘要翻译: 一种制造半导体元件的方法,该半导体元件抑制在半导体衬底中形成虫洞。 在设置在半导体衬底上的电介质层中形成接触开口。 接触开口露出半导体衬底的一部分。 在半导体衬底的暴露部分上并沿着接触开口的侧壁形成氧化物牺牲层。 硅烷与六氟化钨反应形成氢氟酸蒸汽和钨。 氢氟酸蒸气蚀刻掉牺牲氧化物层,并且在半导体衬底的暴露部分上形成薄的钨层。 在形成钨的薄层之后,可以改变反应物以更快地用钨填充接触开口。

    Low power pre-silicide process in integrated circuit technology
    2.
    发明授权
    Low power pre-silicide process in integrated circuit technology 有权
    集成电路技术中的低功耗预硅化工艺

    公开(公告)号:US07049666B1

    公开(公告)日:2006-05-23

    申请号:US10859286

    申请日:2004-06-01

    IPC分类号: H01L29/94 H01L21/44

    摘要: A method of forming an integrated circuit with a semiconductor substrate is provided. A gate dielectric is formed on the semiconductor substrate, and a gate is formed on the gate dielectric. Source/drain junctions are formed in the semiconductor substrate. A thin insulating layer is formed over the source/drain junctions. A silicide is formed on the thin insulating layer and on the gate. An interlayer dielectric is deposited above the semiconductor substrate. Contacts are then formed in the interlayer dielectric to the silicide.

    摘要翻译: 提供一种形成具有半导体衬底的集成电路的方法。 在半导体衬底上形成栅极电介质,在栅极电介质上形成栅极。 在半导体衬底中形成源极/漏极结。 在源极/漏极结上形成一个薄的绝缘层。 在薄绝缘层和栅极上形成硅化物。 在半导体衬底上沉积层间电介质。 然后在层间电介质中形成与硅化物的接触。

    Nitrogen-plasma treatment for reduced nickel silicide bridging
    3.
    发明授权
    Nitrogen-plasma treatment for reduced nickel silicide bridging 有权
    氮等离子体处理用于还原硅化镍桥接

    公开(公告)号:US06661067B1

    公开(公告)日:2003-12-09

    申请号:US10260514

    申请日:2002-10-01

    IPC分类号: H01L2994

    摘要: Bridging between nickel suicide layers on a gate electrode and source/drain regions along silicon nitride sidewall spacers is prevented by treating the exposed surfaces of the silicon nitride sidewall spacers with a nitrogen plasma to create a surface region having reduced free silicon. Embodiments include treating the silicon nitride sidewall spacers with a nitrogen plasma to reduce the refractive index of the surface region to less than about 1.95.

    摘要翻译: 通过用氮等离子体处理氮化硅侧壁间隔物的暴露表面来形成具有减少的游离硅的表面区域,防止栅电极上的硅化镍层与沿着氮化硅侧壁间隔物的源/漏区之间的桥接。 实施例包括用氮等离子体处理氮化硅侧壁间隔物以将表面区域的折射率降低到小于约1.95。

    Nitrogen implant into nitride spacer to reduce nickel silicide formation on spacer
    4.
    发明授权
    Nitrogen implant into nitride spacer to reduce nickel silicide formation on spacer 有权
    氮注入到氮化物间隔物中以减少间隔物上的硅化镍形成

    公开(公告)号:US06602754B1

    公开(公告)日:2003-08-05

    申请号:US10059039

    申请日:2002-01-30

    IPC分类号: H01L21336

    CPC分类号: H01L29/665 H01L21/265

    摘要: Bridging between silicide layers on a gate electrode and source/drain regions along silicon nitride sidewall spacers is prevented by implanting the exposed surfaces of the silicon nitride sidewall spacers with nitrogen to create a surface region having an increased nitrogen concentration. Embodiments include implanting the silicon nitride sidewall spacers with nitrogen such that the nitrogen concentration of the exposed surface is increased by about 5% to about 15%, thereby substantially preventing the formation of metal silicide on the sidewall spacers.

    摘要翻译: 通过用氮气注入氮化硅侧壁间隔物的暴露表面以产生具有增加的氮浓度的表面区域来防止在栅电极上的硅化物层与沿着氮化硅侧壁间隔物的源/漏区之间的桥接。 实施例包括用氮气注入氮化硅侧壁间隔物,使得暴露表面的氮浓度增加约5%至约15%,从而基本上防止在侧壁间隔物上形成金属硅化物。

    Co-deposition of nitrogen and metal for metal silicide formation
    5.
    发明授权
    Co-deposition of nitrogen and metal for metal silicide formation 有权
    用于金属硅化物形成的氮和金属的共沉积

    公开(公告)号:US06432805B1

    公开(公告)日:2002-08-13

    申请号:US09783620

    申请日:2001-02-15

    IPC分类号: H01L213205

    摘要: Salicide processing is implemented with silicon nitride sidewall spacers by initially depositing a refractory metal, e.g., Ni, in the presence of nitrogen to form a metal nitride layer to prevent the reaction of the deposited metal with free Si in silicon nitride sidewall spacers, thereby avoiding bridging between the metal silicide layer on the gate electrode and the metal silicide layers on the source/drain regions of a semiconductor device.

    摘要翻译: 通过在氮气存在下首先沉积难熔金属(例如Ni)以形成金属氮化物层,以防止沉积的金属与氮化硅侧壁间隔物中的游离Si的反应,从而避免了氮化硅侧壁间隔物的剥离处理 桥接在栅电极上的金属硅化物层和半导体器件的源极/漏极区域上的金属硅化物层之间。

    MOS Transistor formation process including post-spacer etch surface treatment for improved silicide formation
    6.
    发明授权
    MOS Transistor formation process including post-spacer etch surface treatment for improved silicide formation 有权
    MOS晶体管形成工艺包括用于改善硅化物形成的后间隔蚀刻表面处理

    公开(公告)号:US06171919B2

    公开(公告)日:2001-01-09

    申请号:US09361155

    申请日:1999-07-27

    IPC分类号: H01L21336

    CPC分类号: H01L29/665

    摘要: Sub-micron dimensioned, ultra-shallow junction MOS and/or CMOS transistor devices having reduced or minimal junction leakage are formed by a salicide process wherein carbonaceous residue on silicon substrate surfaces resulting from reactive plasma etching for sidewall spacer formation is removed prior to salicide processing. Embodiments include removing carbonaceous residues by performing a hydrogen ion plasma treatment.

    摘要翻译: 通过自对准硅化物工艺形成具有减小的或最小的结泄漏的亚微米尺寸的超浅结MOS和/或CMOS晶体管器件,其中在自对准硅化物处理之前除去由用于侧壁间隔物形成的反应等离子体蚀刻而导致的硅衬底表面上的碳质残渣 。 实施例包括通过进行氢离子等离子体处理来除去碳质残渣。

    Low stress sidewall spacer in integrated circuit technology
    9.
    发明授权
    Low stress sidewall spacer in integrated circuit technology 有权
    集成电路技术中的低应力侧壁间隔

    公开(公告)号:US07005357B2

    公开(公告)日:2006-02-28

    申请号:US10756023

    申请日:2004-01-12

    IPC分类号: H01L21/336 H01L21/441

    CPC分类号: H01L29/6659 H01L29/665

    摘要: A method of forming an integrated circuit with a semiconductor substrate is provided. A gate dielectric is formed on the semiconductor substrate, and a gate is formed on the gate dielectric. Source/drain junctions are formed in the semiconductor substrate. A sidewall spacer is formed around the gate using a low power plasma enhanced chemical vapor deposition process A silicide is formed on the source/drain junctions and on the gate, and an interlayer dielectric is deposited above the semiconductor substrate. Contacts are then formed in the interlayer dielectric to the silicide.

    摘要翻译: 提供一种形成具有半导体衬底的集成电路的方法。 在半导体衬底上形成栅极电介质,在栅极电介质上形成栅极。 在半导体衬底中形成源极/漏极结。 使用低功率等离子体增强化学气相沉积工艺在栅极周围形成侧壁间隔物。在源极/漏极结和栅极上形成硅化物,并且在半导体衬底上沉积层间电介质。 然后在层间电介质中形成与硅化物的接触。

    Method of manufacturing semiconductor device comprising silicon-rich tasin metal gate electrode
    10.
    发明授权
    Method of manufacturing semiconductor device comprising silicon-rich tasin metal gate electrode 有权
    一种制造半导体器件的方法,所述半导体器件包括富含硅的金属栅电极

    公开(公告)号:US06861350B1

    公开(公告)日:2005-03-01

    申请号:US10464508

    申请日:2003-06-19

    摘要: Micro-miniaturized semiconductor devices are fabricated with silicon-rich tantalum silicon nitride replacement metal gate electrodes. Embodiments include removing a removable gate, depositing a layer of tantalum nitride, as by PVD at a thickness of 25 Å to 75 Å, and then introducing silicon into the deposited tantalum nitride layer by thermal soaking in silane or silane plasma treatment to form a layer of silicon-rich tantalum silicon nitride. In another embodiment, the intermediate structure is subjected to thermal soaking in silane or silane plasma treatment before and after depositing the tantalum nitride layer. Embodiments further include pretreating the intermediate structure with silane prior to depositing the tantalum nitride layer, treating the deposited tantalum nitride layer with silane, and repeating these steps a number of times to form a plurality of sub-layers of silicon-rich tantalum silicon nitride.

    摘要翻译: 微型半导体器件由富含硅的钽氮化硅替代金属栅电极制成。 实施例包括去除可移除栅极,通过PVD沉积氮化钽层,厚度为25埃,然后通过在硅烷或硅烷等离子体处理中热浸泡形成层,将硅引入沉积的氮化钽层中 的富硅钽硅氮化物。 在另一个实施方案中,在沉积氮化钽层之前和之后,使中间体在硅烷或硅烷等离子体处理中进行热浸。 实施例还包括在沉积氮化钽层之前用硅烷预处理中间结构,用硅烷处理沉积的氮化钽层,并重复这些步骤多次以形成多个富硅钽硅氮化物的子层。