Barrier layer and fabrication method thereof
    111.
    发明授权
    Barrier layer and fabrication method thereof 有权
    阻挡层及其制造方法

    公开(公告)号:US07179759B2

    公开(公告)日:2007-02-20

    申请号:US10955519

    申请日:2004-09-30

    Abstract: A barrier layer and a fabrication thereof are disclosed. The barrier layer comprises at least one barrier material selected from the group consisting of Ta, W, Ti, Ru, Zr, Hf, V, Nb, Cr and Mo and at least one component of oxygen, nitrogen or carbon. A ratio of the component to the barrier material is not less than about 0.45. The fabrication method of the barrier layer applies a working pressure for forming the barrier layer from about 0.5 mTorr to about 200 mTorr substantially without forming crystalline material therein.

    Abstract translation: 公开了阻挡层及其制造。 阻挡层包含选自Ta,W,Ti,Ru,Zr,Hf,V,Nb,Cr和Mo中的至少一种阻挡材料和氧,氮或碳的至少一种成分。 组分与阻隔材料的比例不小于约0.45。 阻挡层的制造方法施加用于形成阻挡层的工作压力,大约0.5mTorr至大约200mTorr,基本上不形成结晶材料。

    PREVENTION OF POST CMP DEFECTS IN CU/FSG PROCESS
    112.
    发明申请
    PREVENTION OF POST CMP DEFECTS IN CU/FSG PROCESS 有权
    防止CU / FSG过程中的CMP缺陷

    公开(公告)号:US20060292860A1

    公开(公告)日:2006-12-28

    申请号:US11463515

    申请日:2006-08-09

    Abstract: A common problem associated with damascene structures made of copper inlaid in FSG (fluorinated silicate glass) is the formation of defects near the top surface of the structure. The present invention avoids this problem by laying down a layer of USG (undoped silicate glass) over the surface of the FSG layer prior to patterning and etching the latter to form the via hole and (for a dual damascene structure) the trench. After over-filling with copper, the structure is planarized using CMP. The USG layer acts both to prevent any fluorine from the FSG layer from reaching the copper and as an end-point detector during CMP. In this way defects that result from copper-fluorine interaction do not form and precise planarization is achieved.

    Abstract translation: 与镶嵌在FSG(氟化硅酸盐玻璃)中的铜构成的镶嵌结构相关的常见问题是在结构顶表面附近形成缺陷。 本发明通过在图案化之前放置一层USG(未掺杂的硅酸盐玻璃)以避免这种问题,然后在图案化之前对其进行蚀刻,以形成通孔和(用于双镶嵌结构)沟槽。 用铜填充后,使用CMP对结构进行平面化处理。 USG层既可以防止FSG层中的任何氟达到铜,也可以作为CMP中的终点检测器。 以这种方式,铜 - 氟相互作用产生的缺陷不能形成并且实现精确的平坦化。

    Passivation structure for semiconductor devices
    115.
    发明申请
    Passivation structure for semiconductor devices 审中-公开
    半导体器件钝化结构

    公开(公告)号:US20060138668A1

    公开(公告)日:2006-06-29

    申请号:US11023296

    申请日:2004-12-27

    Abstract: A system and method for providing a passivation structure for semiconductor devices is provided. In an embodiment, the passivation structure comprises a first barrier layer and a second barrier layer, wherein the second barrier layer may comprise a material, such as cobalt and/or nickel, that is less pure than the first barrier layer. In another embodiment, a single gradient barrier layer is formed. In this embodiment the single gradient barrier layer exhibits a greater pure conductive material, such as cobalt and/or nickel, nearer the conductive line than near the surface.

    Abstract translation: 提供了一种用于提供半导体器件的钝化结构的系统和方法。 在一个实施例中,钝化结构包括第一阻挡层和第二阻挡层,其中第二阻挡层可以包括比第一阻挡层更纯的材料,例如钴和/或镍。 在另一个实施例中,形成单个梯度阻挡层。 在该实施例中,单个梯度阻挡层表现出比在表面附近更靠近导电线的较高纯度的导电材料,例如钴和/或镍。

    Barrier material and process for Cu interconnect
    116.
    发明申请
    Barrier material and process for Cu interconnect 审中-公开
    铜互连的阻挡材料和工艺

    公开(公告)号:US20060113675A1

    公开(公告)日:2006-06-01

    申请号:US11001471

    申请日:2004-12-01

    Abstract: A semiconductor diffusion barrier layer and its method of manufacture is described. The barrier layer includes of at least one layer of TaN, TiN, WN, TbN, VN, ZrN, CrN, WC, WN, WCN, NbN, AlN, and combinations thereof. The barrier layer may further include a metal rich surface. Embodiments preferably include a glue layer about 10 to 500 Angstroms thick, the glue layer consisting of Ru, Ta, Ti, W, Co, Ni, Al, Nb, AlCu, and a metal-rich nitride, and combinations thereof. The ratio of the glue layer thickness to the barrier layer thickness is preferably about 1 to 50. Other alternative preferred embodiments further include a conductor annealing step. The various layers may be deposited using PVD, CVD, PECVD, PEALD and/or ALD methods including nitridation and silicidation methods.

    Abstract translation: 描述了半导体扩散阻挡层及其制造方法。 阻挡层包括至少一层TaN,TiN,WN,TbN,VN,ZrN,CrN,WC,WN,WCN,NbN,AlN及其组合。 阻挡层还可以包括富金属表面。 实施例优选包括约10至500埃厚的胶层,由Ru,Ta,Ti,W,Co,Ni,Al,Nb,AlCu和富含金属的氮化物组成的胶层及其组合。 胶层厚度与阻挡层厚度的比率优选为约1〜50。其他优选实施方案还包括导体退火步骤。 可以使用PVD,CVD,PECVD,PEALD和/或ALD方法沉积各种层,包括氮化和硅化方法。

    Method of forming silicided gate structure
    117.
    发明授权
    Method of forming silicided gate structure 失效
    形成硅化栅结构的方法

    公开(公告)号:US07015126B2

    公开(公告)日:2006-03-21

    申请号:US10859730

    申请日:2004-06-03

    Abstract: A method of forming a silicided gate of a field effect transistor on a substrate having active regions is provided. The method includes the following steps: (a) forming a silicide in at least a first portion of a gate; (b) after step (a), depositing a metal over the active regions and said gate; and (c) annealing to cause the metal to react to form silicide in the active regions, wherein the thickness of said gate silicide is greater than the thickness of said silicide in said active regions.

    Abstract translation: 提供了在具有有源区的基板上形成场效应晶体管的硅化物栅的方法。 该方法包括以下步骤:(a)在栅极的至少第一部分中形成硅化物; (b)在步骤(a)之后,在有源区域和所述栅极上沉积金属; 和(c)退火以引起金属反应以在有源区中形成硅化物,其中所述栅极硅化物的厚度大于所述有源区中所述硅化物的厚度。

    Diffusion barrier for damascene structures
    118.
    发明申请
    Diffusion barrier for damascene structures 审中-公开
    镶嵌结构的扩散屏障

    公开(公告)号:US20050263891A1

    公开(公告)日:2005-12-01

    申请号:US11100912

    申请日:2005-04-07

    Abstract: A damascene structure for semiconductor devices is provided. In an embodiment, the damascene structure includes trenches formed over vias that electrically couple the trenches to an underlying conductive layer such that the trenches have varying widths. The vias are lined with a first barrier layer. The first barrier layers along the bottom of vias are removed such that a recess formed in the underlying conductive layer. The recesses formed along the bottom of vias are such that the recess below narrower trenches is greater than the recess formed below wider trenches. In another embodiment, a second barrier layer may then be formed over the first barrier layer. In this embodiment, a portion of the conductive layer may be interposed between the first barrier layer and the second barrier layer.

    Abstract translation: 提供了一种用于半导体器件的镶嵌结构。 在一个实施例中,镶嵌结构包括在通孔上形成的沟槽,其将沟槽电耦合到下面的导电层,使得沟槽具有变化的宽度。 通孔排列有第一阻挡层。 沿着通孔底部的第一阻挡层被去除,使得形成在下面的导电层中的凹陷。 沿着通孔底部形成的凹槽使得较窄沟槽下面的凹陷大于形成在较宽沟槽下方的凹陷。 在另一个实施例中,然后可以在第一阻挡层上形成第二阻挡层。 在该实施例中,导电层的一部分可插入在第一阻挡层和第二阻挡层之间。

    Method for forming a multi-layer seed layer for improved Cu ECP
    119.
    发明申请
    Method for forming a multi-layer seed layer for improved Cu ECP 有权
    用于形成用于改善Cu ECP的多层种子层的方法

    公开(公告)号:US20050110147A1

    公开(公告)日:2005-05-26

    申请号:US10723509

    申请日:2003-11-25

    Abstract: A copper filled damascene structure and method for forming the same the method including providing a substrate comprising a semiconductor substrate; forming an insulator layer on the substrate; forming a damascene opening through a thickness portion of the insulator layer; forming a diffusion barrier layer to line the damascene opening; forming a first seed layer overlying the diffusion barrier; plasma treating the first seed layer in-situ with a first treatment plasma comprising plasma source gases selected from the group consisting of argon, nitrogen, hydrogen, and NH3; forming a second seed layer overlying the first seed layer; forming a copper layer overlying the second seed layer according to an electro-chemical plating (ECP) process to fill the damascene opening; and, planarizing the copper layer to form a metal interconnect structure.

    Abstract translation: 铜填充镶嵌结构及其形成方法,包括提供包括半导体衬底的衬底; 在所述基板上形成绝缘体层; 通过所述绝缘体层的厚度部分形成镶嵌开口; 形成扩散阻挡层以使所述镶嵌开口成线; 形成覆盖所述扩散阻挡层的第一晶种层; 用包含选自氩,氮,氢和NH 3的等离子体源气体的第一处理等离子体原位处理第一籽晶层; 形成覆盖所述第一种子层的第二种子层; 根据电化学电镀(ECP)工艺形成覆盖在第二晶种层上的铜层以填充镶嵌开口; 并且平坦化铜层以形成金属互连结构。

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