Method and structure for improving adhesion between intermetal dielectric layer and cap layer
    3.
    发明申请
    Method and structure for improving adhesion between intermetal dielectric layer and cap layer 审中-公开
    提高金属间电介质层和覆盖层之间粘附性的方法和结构

    公开(公告)号:US20050253268A1

    公开(公告)日:2005-11-17

    申请号:US10967009

    申请日:2004-10-15

    摘要: A semiconductor interconnect structure including a semiconductor substrate, a semiconductor active device formed in the substrate, a layer of low-k dielectric material, a first patterned conducting layer, a second patterned conducting layer, and a cap layer formed thereon. The low-k material layer is formed over the semiconductor device. The first conducting line is formed in the low-k material layer and connected to the semiconductor active device. The second conducting line is formed in the low-k material layer but not electrically connected to the semiconductor active device. The cap layer is formed over the low-k material layer, the first and second conducting lines. The cap layer includes silicon and carbon. Since the adhesion strength between the cap layer and the patterned conducting layer is greater than the adhesion strength between the cap layer and the low-k material layer, the addition of second patterned conducting layer would eliminate the overall possibility of delamination between the surface where cap layer is in contact with the low-k material and the first and the second patterned conducting layers.

    摘要翻译: 包括半导体衬底,形成在衬底中的半导体有源器件,低k电介质材料层,第一图案化导电层,第二图案化导电层和形成在其上的帽层的半导体互连结构。 低k材料层形成在半导体器件上。 第一导线形成在低k材料层中并连接到半导体有源器件。 第二导线形成在低k材料层中,但不与半导体有源器件电连接。 盖层形成在低k材料层,第一和第二导电线之上。 盖层包括硅和碳。 由于盖层和图案化导电层之间的粘合强度大于覆盖层和低k材料层之​​间的粘合强度,所以添加第二图案化导电层将消除在盖的表面之间的分层的总体可能性 层与低k材料和第一和第二图案化导电层接触。

    Method of forming contact
    6.
    发明授权
    Method of forming contact 有权
    形成接触的方法

    公开(公告)号:US07294572B2

    公开(公告)日:2007-11-13

    申请号:US11164480

    申请日:2005-11-24

    IPC分类号: H01L21/44

    摘要: A method of forming a contact is provided. A substrate having at least two conductive devices is provided. A spacing is located between the two conductive devices. A first dielectric layer is formed over the substrate to cover the two conductive devices and the spacing. A seam is formed in the first dielectric layer within the spacing. Then, a portion of the first dielectric layer is removed to form an opening so that the width of the seam is expanded. A second dielectric layer is formed over the first dielectric layer to fill the opening. A portion of the second dielectric layer and a portion of the first dielectric layer within the spacing are removed until a portion of the surface of the substrate is exposed and a contact opening is formed in the location for forming the contact. Finally, conductive material is deposited to fill the contact opening.

    摘要翻译: 提供了形成接触的方法。 提供具有至少两个导电装置的基板。 间隔位于两个导电器件之间。 第一电介质层形成在衬底上以覆盖两个导电器件和间隔。 在间隔内的第一电介质层中形成接缝。 然后,去除第一电介质层的一部分以形成开口,使得接缝的宽度扩大。 在第一介电层上方形成第二电介质层以填充开口。 去除第二电介质层的一部分和间隔内的第一电介质层的一部分,直到基板表面的一部分露出,并且在用于形成接触的位置形成接触开口。 最后,沉积导电材料以填充接触开口。

    Seamless trench fill method utilizing sub-atmospheric pressure chemical vapor deposition technique
    7.
    发明授权
    Seamless trench fill method utilizing sub-atmospheric pressure chemical vapor deposition technique 有权
    利用次大气压化学气相沉积技术的无缝沟槽填充方法

    公开(公告)号:US07238586B2

    公开(公告)日:2007-07-03

    申请号:US11161074

    申请日:2005-07-21

    IPC分类号: H01L21/76

    CPC分类号: H01L21/76224

    摘要: A seamless trench fill method utilizing ozone-assisted sub-atmospheric pressure chemical vapor deposition (SACVD) technique is provided. After the deposition of a SACVD silicon oxide film, the substrate is subjected to a steam anneal that is performed under H2/O2 environment at a relatively lower temperature ranging between 500° C. and 800° C. for a time period of no less than 30 minutes. The seam defect in the trench is effectively eliminated by this low-temperature steam anneal. To densify the SACVD silicon oxide film, a subsequent N2 anneal is carried out at a higher temperature, for example, 1050° C.

    摘要翻译: 提供了利用臭氧辅助亚大气压化学气相沉积(SACVD)技术的无缝沟槽填充方法。 在沉积SACVD氧化硅膜之后,将衬底经受在H 2 / O 2 N 2环境下进行的蒸汽退火,温度在500℃以下 ℃至800℃,时间不少于30分钟。 通过这种低温蒸汽退火有效地消除了沟槽中的接缝缺陷。 为了致密化SACVD氧化硅膜,随后的N 2 H 3退火在更高的温度例如1050℃下进行。

    STI of a semiconductor device and fabrication method thereof
    9.
    发明授权
    STI of a semiconductor device and fabrication method thereof 有权
    STI及其制造方法

    公开(公告)号:US07541298B2

    公开(公告)日:2009-06-02

    申请号:US11621968

    申请日:2007-01-10

    IPC分类号: H01L21/31 H01L21/469

    摘要: A method for filling silicon oxide materials into a trench includes providing a substrate having a plurality of trenches, performing a first deposition process to form a first silicon oxide layer in the trenches, and performing a second deposition process to form a second silicon oxide layer in the trenches. The reactant gas of the first deposition process has a first O3/TEOS flow ratio larger than a second O3/TEOS flow ratio of the reactant gas of the second deposition process.

    摘要翻译: 将氧化硅材料填充到沟槽中的方法包括提供具有多个沟槽的衬底,执行第一沉积工艺以在沟槽中形成第一氧化硅层,以及执行第二沉积工艺以形成第二氧化硅层 壕沟 第一沉积工艺的反应气体具有比第二沉积工艺的反应气体的第二O 3 / TEOS流量比大的第一O 3 / TEOS流动比。