FORMING NICKEL-PLATINUM ALLOY SELF-ALIGNED SILICIDE CONTACTS
    2.
    发明申请
    FORMING NICKEL-PLATINUM ALLOY SELF-ALIGNED SILICIDE CONTACTS 有权
    形成镍 - 铂合金自对准硅化物接触

    公开(公告)号:US20140073130A1

    公开(公告)日:2014-03-13

    申请号:US13613579

    申请日:2012-09-13

    IPC分类号: H01L21/3205

    摘要: A method of performing a silicide contact process comprises a forming a nickel-platinum alloy (NiPt) layer over a semiconductor device structure; performing a first rapid thermal anneal (RTA) so as to react portions of the NiPt layer in contact with semiconductor regions of the semiconductor device structure, thereby forming metal rich silicide regions; performing a first wet etch to remove at least a nickel constituent of unreacted portions of the NiPt layer; performing a second wet etch using a dilute Aqua Regia treatment comprising nitric acid (HNO3), hydrochloric acid (HCl) and water (H2O) to remove any residual platinum material from the unreacted portions of the NiPt layer; and following the dilute Aqua Regia treatment, performing a second RTA to form final silicide contact regions from the metal rich silicide regions.

    摘要翻译: 执行硅化物接触工艺的方法包括在半导体器件结构上形成镍 - 铂合金(NiPt)层; 执行第一快速热退火(RTA),以使NiPt层的与半导体器件结构的半导体区域接触的部分反应,由此形成富金属硅化物区域; 执行第一湿蚀刻以去除至少NiPt层的未反应部分的镍组分; 使用包含硝酸(HNO 3),盐酸(HCl)和水(H 2 O)的稀释Aqua Regia处理进行第二次湿蚀刻以从NiPt层的未反应部分去除任何残余的铂材料; 并且在稀释的Aqua Regia处理之后,执行第二个RTA从富金属硅化物区形成最终的硅化物接触区。

    MOSFET integrated circuit with uniformly thin silicide layer and methods for its manufacture
    3.
    发明授权
    MOSFET integrated circuit with uniformly thin silicide layer and methods for its manufacture 有权
    具有均匀薄的硅化物层的MOSFET集成电路及其制造方法

    公开(公告)号:US08652963B2

    公开(公告)日:2014-02-18

    申请号:US13237732

    申请日:2011-09-20

    IPC分类号: H01L21/44

    摘要: An MOSFET device having a Silicide layer of uniform thickness, and methods for its fabrication, are provided. One such method involves depositing a metal layer over wide and narrow contact trenches on the surface of a silicon semiconductor substrate. Upon formation of a uniformly thin amorphous intermixed alloy layer at the metal/silicon interface, the excess (unreacted) metal is removed. The device is annealed to facilitate the formation of a thin silicide layer on the substrate surface which exhibits uniform thickness at the bottoms of both wide and narrow contact trenches.

    摘要翻译: 提供具有均匀厚度的硅化物层的MOSFET器件及其制造方法。 一种这样的方法包括在硅半导体衬底的表面上的宽且窄的接触沟槽上沉积金属层。 在金属/硅界面处形成均匀薄的无定形混合合金层时,除去过量的(未反应的)金属。 该器件被退火以促进在衬底表面上形成薄的硅化物层,其在宽和窄接触沟槽的底部显示均匀的厚度。

    Multi-stage silicidation process
    4.
    发明授权
    Multi-stage silicidation process 有权
    多级硅化工艺

    公开(公告)号:US08603915B2

    公开(公告)日:2013-12-10

    申请号:US13305122

    申请日:2011-11-28

    IPC分类号: H01L21/44

    摘要: A multi-stage silicidation process is described wherein a dielectric etch to expose contact regions is timed to be optimal for a highest of the contact regions. After exposing the highest of the contact regions, a silicide is formed on the exposed contact region and the dielectric is re-etched, selective to the formed silicide, to expose another contact region, lower than the highest of the contact regions, without recessing the highest of the contact regions. The process then forms a silicide on the lower contact region. The process may continue to varying depths. Each subsequent etch is performed without the use of additional masking steps. By manipulating diffusive properties of existing silicides and deposited metals, the silicides formed on contact regions with differing depths/height may comprise different compositions and be optimized for different polarity devices such as nFET and pFET devices.

    摘要翻译: 描述了一种多级硅化工艺,其中用于暴露接触区域的电介质蚀刻被定时以对于最高的接触区域是最佳的。 在暴露最高的接触区域之后,在暴露的接触区域上形成硅化物,并且对所形成的硅化物进行选择性地再次蚀刻电介质以暴露低于最高接触区域的另一个接触区域,而不会使 最高的接触区域。 然后,该过程在下接触区域上形成硅化物。 该过程可能继续变化深度。 在不使用附加掩蔽步骤的情况下执行每个后续蚀刻。 通过操纵现有硅化物和沉积金属的扩散性能,形成在具有不同深度/高度的接触区域上的硅化物可以包含不同的组成,并针对不同的极性器件如nFET和pFET器件进行优化。

    MULTI-STAGE SILICIDATION PROCESS
    6.
    发明申请
    MULTI-STAGE SILICIDATION PROCESS 有权
    多级硅化工艺

    公开(公告)号:US20130137260A1

    公开(公告)日:2013-05-30

    申请号:US13305122

    申请日:2011-11-28

    IPC分类号: H01L21/3205

    摘要: A multi-stage silicidation process is described wherein a dielectric etch to expose contact regions is timed to be optimal for a highest of the contact regions. After exposing the highest of the contact regions, a silicide is formed on the exposed contact region and the dielectric is re-etched, selective to the formed silicide, to expose another contact region, lower than the highest of the contact regions, without recessing the highest of the contact regions. The process then forms a silicide on the lower contact region. The process may continue to varying depths. Each subsequent etch is performed without the use of additional masking steps. By manipulating diffusive properties of existing silicides and deposited metals, the silicides formed on contact regions with differing depths/height may comprise different compositions and be optimized for different polarity devices such as nFET and pFET devices.

    摘要翻译: 描述了一种多级硅化工艺,其中用于暴露接触区域的电介质蚀刻被定时以对于最高的接触区域是最佳的。 在暴露最高的接触区域之后,在暴露的接触区域上形成硅化物,并且对所形成的硅化物进行选择性地再次蚀刻电介质以暴露低于最高接触区域的另一个接触区域,而不会使 最高的接触区域。 然后,该过程在下接触区域上形成硅化物。 该过程可能继续变化深度。 在不使用附加掩蔽步骤的情况下执行每个后续蚀刻。 通过操纵现有硅化物和沉积金属的扩散性能,形成在具有不同深度/高度的接触区域上的硅化物可以包含不同的组成,并针对不同的极性器件如nFET和pFET器件进行优化。

    Metal-semiconductor intermixed regions
    7.
    发明授权
    Metal-semiconductor intermixed regions 有权
    金属半导体混合区域

    公开(公告)号:US08278200B2

    公开(公告)日:2012-10-02

    申请号:US13012043

    申请日:2011-01-24

    IPC分类号: H01L21/20

    CPC分类号: H01L21/28518

    摘要: In one exemplary embodiment, a program storage device readable by a machine, tangibly embodying a program of instructions executable by the machine for performing operations, said operations including: depositing a first layer having a first metal on a surface of a semiconductor structure, where depositing the first layer creates a first intermix region at an interface of the first layer and the semiconductor structure; removing a portion of the deposited first layer to expose the first intermix region; depositing a second layer having a second metal on the first intermix region, where depositing the second layer creates a second intermix region at an interface of the second layer and the first intermix region; removing a portion of the deposited second layer to expose the second intermix region; and performing at least one anneal on the semiconductor structure.

    摘要翻译: 在一个示例性实施例中,一种可由机器读取的程序存储设备,其有形地体现了可由机器执行的用于执行操作的指令程序,所述操作包括:在半导体结构的表面上沉积具有第一金属的第一层, 第一层在第一层和半导体结构的界面处形成第一混合区; 去除沉积的第一层的一部分以暴露第一混合区; 在所述第一混合区域上沉积具有第二金属的第二层,其中沉积所述第二层在所述第二层和所述第一混合区的界面处产生第二混合区; 去除沉积的第二层的一部分以暴露第二混合区; 以及在所述半导体结构上执行至少一个退火。

    Structure and method to form dual silicide e-fuse
    8.
    发明授权
    Structure and method to form dual silicide e-fuse 有权
    双硅化物电熔丝的结构和方法

    公开(公告)号:US08013419B2

    公开(公告)日:2011-09-06

    申请号:US12136246

    申请日:2008-06-10

    IPC分类号: H01L23/52

    摘要: An e-fuse structure and method has anode, a fuse link, and a cathode. The first end of the fuse link is connected to the anode and the second end of the fuse link opposite the first end is connected to the cathode. This structure also includes a first silicide layer on the anode and the fuse link and a second silicide layer, different than the first silicide layer, on the cathode. The difference between the first silicide layer and the second silicide layer causes an enhanced flux divergence region at the second end of the fuse link.

    摘要翻译: 电熔丝结构和方法具有阳极,熔丝链和阴极。 熔丝链的第一端连接到阳极,并且与第一端相对的熔丝连接的第二端连接到阴极。 该结构还包括阴极上的阳极和熔丝链上的第一硅化物层和不同于第一硅化物层的第二硅化物层。 第一硅化物层和第二硅化物层之间的差异在熔丝链的第二端引起增强的磁通发散区域。

    METHOD AND STRUCTURE FOR DIFFERENTIAL SILICIDE AND RECESSED OR RAISED SOURCE/DRAIN TO IMPROVE FIELD EFFECT TRANSISTOR
    9.
    发明申请
    METHOD AND STRUCTURE FOR DIFFERENTIAL SILICIDE AND RECESSED OR RAISED SOURCE/DRAIN TO IMPROVE FIELD EFFECT TRANSISTOR 有权
    不同硅酸盐的方法和结构以及被提高或提高的源/排水以改善场效应晶体管

    公开(公告)号:US20110062525A1

    公开(公告)日:2011-03-17

    申请号:US12560585

    申请日:2009-09-16

    IPC分类号: H01L27/092 H01L21/8238

    摘要: A method forms an integrated circuit structure. The method patterns a protective layer over a first-type field effect transistor and removes a stress liner from above a second-type field effect transistors. Then, the method removes a first-type silicide layer from source and drain regions of the second-type field effect transistor, but leaves at least a portion of the first-type silicide layer on the gate conductor of the second-type field effect transistor. The method forms a second-type silicide layer on the gate conductor and the source and drain regions of the second-type field effect transistor. The second-type silicide layer that is formed is different than the first-type silicide layer. For example, the first-type silicide layer and the second-type silicide layer can comprise different materials, different thicknesses, different crystal orientations, and/or different chemical phases, etc.

    摘要翻译: 一种方法形成集成电路结构。 该方法在第一类场效应晶体管上形成保护层,并从第二种场效应晶体管上方去除应力衬垫。 然后,该方法从第二类型场效应晶体管的源极区和漏极区去除第一类型的硅化物层,但是将第一类型硅化物层的至少一部分留在第二类型场效应晶体管的栅极导体上 。 该方法在栅极导体和第二类场效应晶体管的源极和漏极区域上形成第二类型的硅化物层。 所形成的第二类硅化物层与第一型硅化物层不同。 例如,第一型硅化物层和第二类型硅化物层可以包括不同的材料,不同的厚度,不同的晶体取向和/或不同的化学相等。

    STRUCTURE AND METHOD TO FORM DUAL SILICIDE E-FUSE
    10.
    发明申请
    STRUCTURE AND METHOD TO FORM DUAL SILICIDE E-FUSE 有权
    形成双硅电子熔丝的结构和方法

    公开(公告)号:US20090302417A1

    公开(公告)日:2009-12-10

    申请号:US12136246

    申请日:2008-06-10

    IPC分类号: H01L23/525 H01L21/44

    摘要: An e-fuse structure and method has anode, a fuse link, and a cathode. The first end of the fuse link is connected to the anode and the second end of the fuse link opposite the first end is connected to the cathode. This structure also includes a first silicide layer on the anode and the fuse link and a second silicide layer, different than the first silicide layer, on the cathode. The difference between the first silicide layer and the second silicide layer causes an enhanced flux divergence region at the second end of the fuse link.

    摘要翻译: 电熔丝结构和方法具有阳极,熔丝链和阴极。 熔丝链的第一端连接到阳极,并且与第一端相对的熔丝连接的第二端连接到阴极。 该结构还包括阴极上的阳极和熔丝链上的第一硅化物层和不同于第一硅化物层的第二硅化物层。 第一硅化物层和第二硅化物层之间的差异在熔丝链的第二端引起增强的磁通发散区域。