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268 条记录 (耗时 0.046 秒)

    Recovery of hydrophobicity of low-k and ultra low-k organosilicate films used as inter metal dielectrics
    85.
    发明申请
    Recovery of hydrophobicity of low-k and ultra low-k organosilicate films used as inter metal dielectrics 失效
    用作金属间电介质的低k和超低k有机硅酸盐膜的疏水性的恢复

    公开(公告)号：US20050106762A1

    公开(公告)日：2005-05-19

    申请号：US10853771

    申请日：2004-05-25

    申请人： Nirupama Chakrapani ,  Matthew Colburn ,  Christos Dimitrakopoulos ,  Dirk Pfeiffer ,  Sampath Purushothaman ,  Satyanarayana Nitta

    发明人： Nirupama Chakrapani ,  Matthew Colburn ,  Christos Dimitrakopoulos ,  Dirk Pfeiffer ,  Sampath Purushothaman ,  Satyanarayana Nitta

    IPC分类号： H01L21/00 ,  H01L21/3105 ,  H01L21/312 ,  H01L21/768

    CPC分类号： H01L21/76826 ,  H01L21/02126 ,  H01L21/02203 ,  H01L21/31058 ,  H01L21/76807 ,  H01L21/76814 ,  H01L2924/0002 ,  H01L2924/00

    摘要： Often used to reduce the RC delay in integrated circuits are dielectric films of porous organosilicates which have a silica like backbone with alkyl or aryl groups (to add hydrophobicity to the materials and create free volume) attached directly to the Si atoms in the network. Si—R bonds rarely survive an exposure to plasmas or chemical treatments commonly used in processing; this is especially the case in materials with an open cell pore structure. When Si—R bonds are broken, the materials lose hydrophobicity, due to formation of hydrophilic silanols and low dielectric constant is compromised. A method by which the hydrophobicity of the materials is recovered using a novel class of silylation agents which may have the general formula (R2N)XSiR′Y where X and Y are integers from 1 to 3 and 3 to 1 respectively, and where R and R′ are selected from the group of hydrogen, alkyl, aryl, allyl and a vinyl moiety. Mechanical strength of porous organosilicates is also improved as a result of the silylation treatment.

    摘要翻译： 通常用于减少集成电路中的RC延迟的是多孔有机硅酸盐的介电膜，其具有二氧化硅像主链与烷基或芳基（以增加材料的疏水性并产生自由体积）直接连接到网络中的Si原子。 Si-R键在暴露于等离子体或通常用于加工的化学处理中很少存活; 这在具有开孔细孔结构的材料中尤其如此。 当Si-R键断裂时，材料由于形成亲水硅烷醇而损失疏水性，并且低介电常数受损。 使用新型甲硅烷基化剂回收材料的疏水性的方法，其可以具有通式（R 2 N 2）X SiR'Y 其中X和Y分别为1至3和3至1的整数，并且其中R和R'选自氢，烷基，芳基，烯丙基和乙烯基部分。 由于甲硅烷基化处理，多孔有机硅酸盐的机械强度也得到改善。

    Spin-on cap layer, and semiconductor device containing same
    88.
    发明授权
    Spin-on cap layer, and semiconductor device containing same 有权
    旋转盖层，以及包含其的半导体器件

    公开(公告)号：US06724069B2

    公开(公告)日：2004-04-20

    申请号：US09827160

    申请日：2001-04-05

    申请人： Timothy Joseph Dalton ,  Stephen McConnell Gates ,  Jeffrey Curtis Hedrick ,  Satyanarayana V. Nitta ,  Sampath Purushothaman ,  Christy Sensenich Tyberg

    发明人： Timothy Joseph Dalton ,  Stephen McConnell Gates ,  Jeffrey Curtis Hedrick ,  Satyanarayana V. Nitta ,  Sampath Purushothaman ,  Christy Sensenich Tyberg

    IPC分类号： H01L2358

    CPC分类号： H01L21/76835 ,  H01L21/76801 ,  H01L21/76811 ,  H01L21/76828 ,  H01L21/76829 ,  H01L21/76832 ,  H01L23/5329 ,  H01L2924/0002 ,  H01L2924/00

    摘要： A spin-on cap useful as a post-CMP cap for Cu interconnect structures is provided. The inventive spin-on cap includes a low-k dielectric (on the order of 3.5 or less) and at least one additive. The at least one additive employed in the present invention is capable of binding Cu ions, and is soluble in the spun-on low-k dielectric. The spin-on cap of the present invention may further include a spun-on low-k (on the order of 3.5 or less) reactive-ion etch (RIE) stop layer. Spin-on caps containing a bilayer of low-dielectric plus at least additive and low-k RIE stop layer are preferred. It is noted that the inventive spin-on cap of the present invention does not significantly increase the effective dielectric constant of the interconnect structure and does not add additional cost to the fabrication of the interconnect structure since a single deposition tool, i.e., spin coating tool, is employed. Moreover, because of the presence of the additive in the spin-on cap, Cu migration is substantially minimized.

    摘要翻译： 提供了一种用作Cu互连结构的CMP后盖的旋涂帽。 本发明的旋涂帽包括低k电介质（约3.5或更小）和至少一种添加剂。 本发明中使用的至少一种添加剂能够结合Cu离子，并且可溶于旋转的低k电介质。 本发明的旋涂帽还可以包括旋转低k（约3.5或更小）反应离子蚀刻（RIE）停止层。 包含低电介质加上至少添加和低k RIE停止层的双层的旋转盖是优选的。 注意，本发明的本发明的旋涂帽不会显着增加互连结构的有效介电常数，并且不会增加互连结构的制造的额外成本，因为单个沉积工具，即旋涂工具 ，被雇用。 此外，由于在旋涂帽中存在添加剂，所以Cu迁移基本上被最小化。

    Protective hardmask for producing interconnect structures
    89.
    发明授权
    Protective hardmask for producing interconnect structures 失效
    用于生产互连结构的保护硬掩模

    公开(公告)号：US06720249B1

    公开(公告)日：2004-04-13

    申请号：US09550943

    申请日：2000-04-17

    申请人： Timothy J. Dalton ,  Christopher V. Jahnes ,  Joyce C. Liu ,  Sampath Purushothaman

    发明人： Timothy J. Dalton ,  Christopher V. Jahnes ,  Joyce C. Liu ,  Sampath Purushothaman

    IPC分类号： H01L214763

    CPC分类号： H01L21/76835 ,  H01L21/76802 ,  H01L21/76811 ,  H01L21/76813 ,  H01L21/76816 ,  H01L21/76829 ,  H01L23/5222 ,  H01L23/5329 ,  H01L2924/0002 ,  H01L2924/00

    摘要： The present invention provides a permanent protective hardmask which protects the dielectric properties of a main dielectric layer having a desirably low dielectric constant in a semiconductor device from undesirable increases in the dielectric constant, undesirable increases in current leakage, and low device yield from surface scratching during subsequent processing steps. The protective hardmask further includes a single layer or dual layer sacrificial hardmask particularly useful when interconnect structures such as via openings and/or lines are formed in the low dielectric material during the course of making the final product. The sacrificial hardmask layers and the permanent hardmask layer may be formed in a single step from a same precursor wherein process conditions are altered to provide films of differing dielectric constants. Most preferably, a dual damascene structure has a tri-layer hardmask comprising silicon carbide BLoK™, PECVD silicon nitride, and PECVD silicon dioxide, respectively, formed over a bulk low dielectric constant interlevel dielectric prior to forming the interconnect structures in the interlevel dielectric.

    摘要翻译： 本发明提供一种永久性保护性硬掩模，其保护半导体器件中具有期望的低介电常数的主电介质层的介电性能，不需要介电常数的增加，不期望的电流泄漏增加，以及在表面划伤期间的低的器件产量 后续处理步骤。 保护性硬掩模还包括单层或双层牺牲硬掩模，在制造最终产品的过程中，在低电介质材料中形成诸如通孔开口和/或线之间的互连结构时尤其有用。 牺牲硬掩模层和永久硬掩模层可以从相同的前体在单个步骤中形成，其中改变工艺条件以提供不同介电常数的膜。 最优选地，双镶嵌结构具有三层硬掩模，其在形成层间的互连结构之前分别形成在体低介电常数层间电介质上的碳化硅BLoK TM，PECVD氮化硅和PECVD二氧化硅 电介质。

    Semiconductor recessed mask interconnect technology
    90.
    发明授权
    Semiconductor recessed mask interconnect technology 失效
    半导体凹陷掩模互连技术

    公开(公告)号：US06657305B1

    公开(公告)日：2003-12-02

    申请号：US09703734

    申请日：2000-11-01

    申请人： Stephen Alan Cohen ,  Timothy Joseph Dalton ,  John Anthony Fitzsimmons ,  Stephen McConnell Gates ,  Brian Wayne Herbst ,  Sampath Purushothaman ,  Stanley Joseph Whitehair

    发明人： Stephen Alan Cohen ,  Timothy Joseph Dalton ,  John Anthony Fitzsimmons ,  Stephen McConnell Gates ,  Brian Wayne Herbst ,  Sampath Purushothaman ,  Stanley Joseph Whitehair

    IPC分类号： H01L2348

    CPC分类号： H01L21/76829 ,  H01L21/76804 ,  H01L21/76834 ,  H01L21/76885 ,  H01L23/5222 ,  H01L23/5283 ,  H01L2924/0002 ,  H01L2924/00

    摘要： A metal plus low dielectric constant (low-k) interconnect structure is provided for a semiconductor device wherein adjacent regions in a surface separated by a dielectric have dimensions in width and spacing in the sub 250 nanometer range, and in which reduced lateral leakage current between adjacent metal lines, and a lower effective dielectric constant than a conventional structure, is achieved by the positioning of a differentiating or mask member that is applied for the protection of the dielectric in subsequent processing operations, at a position about 2-5 nanometers below a, to be planarized, surface where there will be a lower electric field. The invention is particularly useful in the damascene type device structure in the art wherein adjacent conductors extend from a substrate through an interlevel dielectric material, connections are made in a trench, a diffusion barrier liner is provided in the interlevel dielectric material and masking is employed to protect the dielectric material between conductors during processing operations.

    摘要翻译： 为半导体器件提供金属加上低介电常数（低k）互连结构，其中由电介质隔开的表面中的相邻区域在亚250纳米范围内具有宽度和间距的尺寸，并且其中减小横向漏电流 相邻的金属线和比常规结构更低的有效介电常数是通过在后续处理操作中在约2-5纳米以下的位置处定位用于保护电介质的微分或掩模构件来实现的 ，要平坦化，会有较低电场的表面。 本发明特别适用于本领域的镶嵌型器件结构，其中相邻导体从衬底延伸通过层间电介质材料，在沟槽中形成连接，在层间电介质材料中提供扩散阻挡衬垫，并且使用掩模 在处理操作期间保护导体之间的电介质材料。