Apparatus and methods for low K dielectric layers
    21.
    发明授权
    Apparatus and methods for low K dielectric layers 有权
    低K电介质层的装置和方法

    公开(公告)号:US08889567B2

    公开(公告)日:2014-11-18

    申请号:US13234946

    申请日:2011-09-16

    Abstract: Methods and apparatus for a low k dielectric layer of porous SiCOH. A method includes placing a semiconductor substrate into a vapor deposition chamber; introducing reactive gases into the vapor deposition chamber to form a dielectric film comprising SiCOH and a decomposable porogen; depositing the dielectric film to have a ratio of Si—CH3 to SiOnetwork bonds of less than or equal to 0.25; and performing a cure for a cure time to remove substantially all of the porogen from the dielectric film. In one embodiment the porogen comprises a cyclic hydrocarbon. The porogen may be UV curable. In embodiments, different lowered Si—CH3 to SiOnetwork ratios for the deposition of the dielectric film are disclosed. An apparatus of a semiconductor device including the low k dielectric layers is disclosed.

    Abstract translation: 多孔SiCOH的低k电介质层的方法和装置。 一种方法包括将半导体衬底放置在气相沉积室中; 将反应性气体引入气相沉积室以形成包含SiCOH和可分解致孔剂的电介质膜; 沉积介电膜以使Si-CH3与SiO网络键的比例小于或等于0.25; 并进行固化固化时间以从电介质膜基本上除去所有致孔剂。 在一个实施方案中,致孔剂包含环状烃。 造孔剂可以是UV固化的。 在实施例中,公开了用于沉积电介质膜的不同降低的Si-CH 3与SiO网络比。 公开了一种包括低k电介质层的半导体器件的装置。

    Method for Improving the Reliability of Low-k Dielectric Materials
    24.
    发明申请
    Method for Improving the Reliability of Low-k Dielectric Materials 审中-公开
    提高低k电介质材料可靠性的方法

    公开(公告)号:US20090258487A1

    公开(公告)日:2009-10-15

    申请号:US12102695

    申请日:2008-04-14

    CPC classification number: H01L21/76825 H01L21/3105

    Abstract: A method for forming an integrated circuit structure includes providing a semiconductor substrate; forming a low-k dielectric layer over the semiconductor substrate; generating hydrogen radicals using a remote plasma method; performing a first hydrogen radical treatment to the low-k dielectric layer using the hydrogen radicals; forming an opening in the low-k dielectric layer; filling the opening with a conductive material; and performing a planarization to remove excess conductive material on the low-k dielectric layer.

    Abstract translation: 一种用于形成集成电路结构的方法包括提供半导体衬底; 在半导体衬底上形成低k电介质层; 使用远程等离子体法产生氢自由基; 使用氢自由基对低k电介质层进行第一次氢自由基处理; 在低k电介质层中形成开口; 用导电材料填充开口; 并执行平面化以去除低k电介质层上的过量导电材料。

    Interconnects containing bilayer porous low-k dielectrics using different porogen to structure former ratio
    29.
    发明申请
    Interconnects containing bilayer porous low-k dielectrics using different porogen to structure former ratio 有权
    包含双层多孔低k电介质的互连使用不同的致孔剂来构造前者的比例

    公开(公告)号:US20080171431A1

    公开(公告)日:2008-07-17

    申请号:US11654427

    申请日:2007-01-17

    Abstract: A bilayer porous low dielectric constant (low-k) interconnect structure and methods of fabricating the same are presented. A preferred embodiment having an effective dielectric constant of about 2.2 comprises a bottom deposited dielectric layer and a top deposited dielectric layer in direct contact with the former. The bottom layer and the top layer have same atomic compositions, but a higher dielectric constant value k. The bottom dielectric layer serves as an etch stop layer for the top dielectric layer, and the top dielectric layer can act as CMP stop layer. One embodiment of making the structure includes forming a bottom dielectric layer having a first porogen content and a top dielectric layer having a higher porogen content. A curing process leaves lower pore density in the bottom dielectric layer than that left in the top dielectric layer, which leads to higher dielectric value k in the bottom dielectric layer.

    Abstract translation: 提出了双层多孔低介电常数(低k)互连结构及其制造方法。 具有约2.2的有效介电常数的优选实施例包括与前者直接接触的底部沉积介电层和顶部沉积的介电层。 底层和顶层具有相同的原子组成,但是较高的介电常数值k。 底部介电层用作顶部电介质层的蚀刻停止层,并且顶部介电层可以用作CMP停止层。 制造该结构的一个实施方案包括形成具有第一致孔剂含量的底部电介质层和具有较高致孔剂含量的顶部电介质层。 固化过程在底部电介质层中留下比在顶部电介质层中留下的孔密度更低的孔密度,这导致底部电介质层中较高的介电值k。

    INTERCONNECT STRUCTURES AND METHODS FOR FABRICATING THE SAME
    30.
    发明申请
    INTERCONNECT STRUCTURES AND METHODS FOR FABRICATING THE SAME 有权
    互连结构及其制作方法

    公开(公告)号:US20080061442A1

    公开(公告)日:2008-03-13

    申请号:US11531304

    申请日:2006-09-13

    Abstract: Interconnect structures are provided. An exemplary embodiment of an interconnect structure comprises a substrate with a low-k dielectric layer thereon. A via opening and a trench opening are formed in the low-k dielectric layer, wherein the trench opening is formed over the via opening and-the via opening exposes a portion of the substrate. A liner layer is formed on sidewalls of the low-k dielectric layer exposed by the trench and via protions and a bottom surface exposed by the trench via portion, wherein the portion of the liner layer on sidewalls of the low-k dielectric layer exposed by the trench and via protions and the portion of the liner layer formed on a bottom surface exposed by the trench portion comprise different materials. A conformal conductive barrier layer is formed in the trench and via openings, covering the liner layer and the exposed portion of the substrate. A conductive layer is formed on the conductive barrier layer, filling in the trench and via openings

    Abstract translation: 提供互连结构。 互连结构的示例性实施例包括其上具有低k电介质层的衬底。 通孔开口和沟槽开口形成在低k电介质层中,其中沟槽开口形成在通孔开口上方,并且通孔开口暴露衬底的一部分。 衬底层形成在由槽沟露出的低k电介质层的侧壁上,并且通过沟槽和由沟槽通孔部分露出的底表面,其中低k电介质层的侧壁上的衬垫层的部分暴露于 形成在由沟槽部分露出的底表面上的沟槽和通孔保护层以及衬垫层的部分包括不同的材料。 在沟槽和通孔开口中形成共形导电阻挡层,覆盖衬垫层和衬底的暴露部分。 在导电阻挡层上形成导电层,填充沟槽和通孔

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