Composite barrier layer
    51.
    发明申请
    Composite barrier layer 有权
    复合阻挡层

    公开(公告)号:US20060027925A1

    公开(公告)日:2006-02-09

    申请号:US11024916

    申请日:2004-12-28

    Abstract: A composite barrier layer provides superior barrier qualities and superior adhesion properties to both dielectric materials and conductive materials as the composite barrier layer extends throughout the semiconductor device. The composite barrier layer may be formed in regions where it is disposed between two conductive layers and in regions where it is disposed between a conductive layer and a dielectric material. The composite barrier layer may consist of various pluralities of layers and the arrangement of layers that form the composite barrier layer may differ as the barrier layer extends throughout different sections of the device. Amorphous layers of the composite barrier layer are generally disposed to form boundaries with dielectric materials and crystalline layers are generally disposed to form boundaries with conductive materials such as interconnect materials.

    Abstract translation: 当复合阻挡层延伸穿过整个半导体器件时,复合阻挡层为介电材料和导电材料提供优异的阻挡质量和优异的粘合性能。 复合阻挡层可以形成在其设置在两个导电层之间的区域中,并且在其布置在导电层和电介质材料之间的区域中。 复合阻挡层可以由各种多个层组成,并且形成复合阻挡层的层的布置可以随着阻挡层在装置的不同部分延伸而不同。 复合阻挡层的非晶层通常设置成与电介质材料形成边界,并且通常设置结晶层以与诸如互连材料的导电材料形成边界。

    Method of forming multilayer diffusion barrier for copper interconnections
    52.
    发明授权
    Method of forming multilayer diffusion barrier for copper interconnections 有权
    形成铜互连多层扩散阻挡层的方法

    公开(公告)号:US06969675B2

    公开(公告)日:2005-11-29

    申请号:US10942355

    申请日:2004-09-16

    Applicant: Jing-Cheng Lin

    Inventor: Jing-Cheng Lin

    Abstract: It is a general object of the present invention to provide an improved method of fabrication in the formation of an improved copper metal diffusion barrier layer having the structure, W/WSiN/WN, in single and dual damascene interconnect trench/contact via processing with 0.10 micron nodes for MOSFET and CMOS applications. The diffusion barrier is formed by depositing a tungsten nitride bottom layer, followed by an in situ SiH4/NH3 or SiH4/H2 soak forming a WSiN layer, and depositing a final top layer of tungsten. This invention is used to manufacture reliable metal interconnects and contact vias in the fabrication of MOSFET and CMOS devices for both logic and memory applications and the copper diffusion barrier formed, W/WSiN/WN, passes a stringent barrier thermal reliability test at 400° C. Pure single barrier layers, i.e., single layer WN, exhibit copper punch through or copper spiking during the stringent barrier thermal reliability test at 400° C.

    Abstract translation: 本发明的一般目的是提供一种改进的制造方法,该方法是在单和双镶嵌互连沟槽/接触通孔加工中具有以下结构的W / WSiN / WN结构的改进的铜金属扩散阻挡层的形成 微米节点用于MOSFET和CMOS应用。 扩散阻挡层是通过沉积氮化钨底层,然后沉积原位SiH 4 / NH 3或SiH 4 H / 浸泡形成WSiN层,并沉积钨的最终顶层。 本发明用于在用于逻辑和存储器应用的MOSFET和CMOS器件的制造中制造可靠的金属互连和接触孔,并且形成的铜扩散阻挡层W / WSiN / WN在400℃下通过严格的阻挡热可靠性测试 在400℃的严格的阻隔热可靠性试验期间,纯单层阻挡层,即单层WN,表现出铜冲穿或铜尖峰。

    Loadlock
    54.
    发明申请
    Loadlock 审中-公开
    负载锁

    公开(公告)号:US20050097769A1

    公开(公告)日:2005-05-12

    申请号:US10668291

    申请日:2003-09-24

    CPC classification number: H01L21/67781

    Abstract: A loadlock. The loadlock for wafers includes a chamber, a pedestal, a retractable shaft, and a bellows. The chamber has a plurality of walls and a bottom surface. The pedestal supports a cassette and is disposed in the chamber. The retractable shaft has a top end and a bottom end. The top end is connected to the pedestal and the bottom end is connected to the bottom surface as a reference for positioning the pedestal. The bellows has a first end and a second end. The first end is disposed on the pedestal and the second end is sealed at the bottom end of the retractable shaft. Preferably, the retractable shaft is fully enclosed by the bellows.

    Abstract translation: 一个加载锁 用于晶片的负荷锁包括一个腔室,一个基座,一个伸缩轴和一个波纹管。 腔室具有多个壁和底面。 基座支撑盒并设置在腔室中。 伸缩轴具有顶端和底端。 顶端连接到基座,底端连接到底面作为基座的基准。 波纹管具有第一端和第二端。 第一端设置在基座上,第二端在可伸缩轴的底端被密封。 优选地,可伸缩轴被波纹管完全包围。

    Method to solve via poisoning for porous low-k dielectric
    55.
    发明授权
    Method to solve via poisoning for porous low-k dielectric 失效
    解决多孔低介电常数中毒的方法

    公开(公告)号:US06878615B2

    公开(公告)日:2005-04-12

    申请号:US09863224

    申请日:2001-05-24

    Abstract: A method of forming a via in a low-k dielectric material and without the attendant via poisoning problem, or a dual damascene structure formed in the same dielectric and without the same problem are disclosed. The vertical walls of the via opening are first lined with a low-k protection layer and then covered with a barrier layer in order to prevent outgassing from the low-k dielectric material when copper is deposited into the via opening. In the case of a dual damascene structure, it is sufficient that the hole opening underlying the trench opening is first lined with the low-k protection layer. The resulting via or dual damascene structure is free of poisoned metal and, therefore, more reliable.

    Abstract translation: 公开了一种在低k电介质材料中形成通孔并且不伴随通过中毒问题的方法,或者形成在相同电介质中并且没有相同问题的双镶嵌结构。 通孔开口的垂直壁首先衬有低k保护层,然后被阻挡层覆盖,以便当铜沉积到通孔中时,防止从低k电介质材料脱气。 在双镶嵌结构的情况下,沟槽开口下方的开孔首先衬有低k保护层就足够了。 所得到的通孔或双镶嵌结构没有中毒金属,因此更可靠。

    Method for selectively depositing diffusion barriers
    57.
    发明授权
    Method for selectively depositing diffusion barriers 有权
    选择性沉积扩散阻挡层的方法

    公开(公告)号:US06576543B2

    公开(公告)日:2003-06-10

    申请号:US09933976

    申请日:2001-08-20

    CPC classification number: H01L21/76846 H01L21/28562 H01L21/76856

    Abstract: A method is provided for selectively depositing a silicided metal diffusion barrier layer in a semiconductor structure to reduce an electrical contact resistance with respect to an underlying copper layer while maintaining a copper diffusion resistance along the semiconductor feature sidewalls including depositing a metal nitride layer over the feature under conditions according to a CVD process such that the metal nitride layer has a relatively higher deposition rate onto feature sidewalls for a period of time compared to a deposition rate over the copper underlayer; and, exposing the metal nitride layer to a silicon containing gaseous ambient under conditions such that silicon is incorporated into the metal nitride layer to form a silicided metal nitride layer having a thickness over the copper underlayer thinner by about 10 Angstroms to 60 Angstroms compared to the feature sidewall thickness.

    Abstract translation: 提供了一种用于在半导体结构中选择性地沉积硅化金属扩散阻挡层的方法,以减少相对于下面的铜层的电接触电阻,同时沿着半导体特征侧壁保持铜扩散电阻,包括在特征上沉积金属氮化物层 在根据CVD工艺的条件下,使得金属氮化物层与铜底层上的沉积速率相比,在特征侧壁上具有相对较高的沉积速率一段时间; 并且将金属氮化物层暴露于含硅气态环境条件下,使得将硅掺入金属氮化物层中以形成厚度超过铜底层的硅化物金属氮化物层,其厚度比第二层薄至约10埃至60埃 特征侧壁厚度。

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