Reduction of the shear stress in copper via's in organic interlayer dielectric material
    12.
    发明授权
    Reduction of the shear stress in copper via's in organic interlayer dielectric material 有权
    在有机层间介质材料中减少铜通道中的剪切应力

    公开(公告)号:US07060619B2

    公开(公告)日:2006-06-13

    申请号:US10379346

    申请日:2003-03-04

    IPC分类号: H01L21/44 H01L21/4763

    摘要: Interconnect layers on a semiconductor body containing logic circuits (microprocessors, Asics or others) or random access memory cells (DRAMS) are formed in a manner to significantly reduce the number of shorts between adjacent conductor/vias with narrow separations in technologies having feature sizes of 0.18 microns or smaller. This is accomplished by etching to form recessed copper top surfaces on each layer after a chemical-mechanical polishing process has been completed. The thickness of an applied barrier layer, on the recessed copper surfaces, is controlled to become essentially co-planar with the surrounding insulator surfaces. A thicker barrier layer eliminates the need for a capping layer. The elimination of a capping layer results in a reduction in the overall capacitive coupling, stress, and cost.

    摘要翻译: 形成包含逻辑电路(微处理器,Asics或其他)或随机存取存储器单元(DRAMS)的半导体主体上的互连层以显着减少相邻导体/通孔之间的短路数量的方式形成, 0.18微米或更小。 这是通过蚀刻完成的,以在化学机械抛光工艺完成后在每一层上形成凹陷的铜顶表面。 在凹陷的铜表面上施加的阻挡层的厚度被控制成与周围的绝缘体表面基本上共面。 较厚的阻挡层消除了对覆盖层的需要。 消除覆盖层导致整体电容耦合,应力和成本的降低。

    Dual hardmask single damascene integration scheme in an organic low k ILD
    14.
    发明授权
    Dual hardmask single damascene integration scheme in an organic low k ILD 有权
    有机低k ILD中的双重硬掩模单镶嵌整体方案

    公开(公告)号:US06638851B2

    公开(公告)日:2003-10-28

    申请号:US09845305

    申请日:2001-05-01

    IPC分类号: H01L214763

    CPC分类号: H01L21/76802

    摘要: Process of making a semiconductor using dual inorganic hardmask in single damascene process integration scheme in an organic low k interlayer dielectric (ILD) by: providing semiconductor substrate; depositing organic low k ILD layer on substrate; forming hardmask 1 on organic low k ILD layer and forming sacrificial hardmask 2 on hardmask 1; forming a patterned photoresist layer on sacrificial hardmask 2; etching selective to sacrificial hardmask 2 and stripping photoresist; etching of hardmask 1 in which the etch is selective to the organic low k ILD layer; depositing a liner or conformal barrier layer over the substrate, organic low k ILD layer, hardmask 1 and hardmask 2; forming a plated metal layer over the liner or conformal barrier layer; and removing metal layer and removing liner with simultaneous removal of sacrificial hardmask 2 so that facets in sacrificial hardmask 2 are removed during liner/sacrificial hardmask 2 removal.

    摘要翻译: 在有机低k层间电介质(ILD)中的单镶嵌工艺集成方案中使用双重无机硬掩模制造半导体的工艺:提供半导体衬底;在衬底上沉积有机低k ILD层;在有机低k ILD层上形成硬掩模1; 在硬掩模1上形成牺牲硬掩模2;在牺牲硬掩模2上形成图案化的光刻胶层;对牺牲硬掩模2进行选择性蚀刻和剥离光刻胶;蚀刻硬掩模1,其中蚀刻对有机低k ILD层是选择性的;沉积衬垫或 在衬底上的共形阻挡层,有机低k ILD层,硬掩模1和硬掩模2;在衬里或保形阻挡层上形成电镀金属层; 并移除金属层,同时去除牺牲性硬掩模2,从而在衬垫/牺牲硬掩模2移除期间去除牺牲硬掩模2中的刻面。

    Robust via structure and method
    15.
    发明授权
    Robust via structure and method 有权
    坚固的通过结构和方法

    公开(公告)号:US06806579B2

    公开(公告)日:2004-10-19

    申请号:US10364190

    申请日:2003-02-11

    IPC分类号: H01L2144

    摘要: A conductive line is formed in a first insulating layer. A second insulating layer is formed over the conductive line and the first insulating layer. A via extends through the second insulating layer to contact at least the top surface of the conductive line. The via also extends through the first insulating layer to contact at least a top portion of at least one sidewall of the conductive line. The conductive line sidewall may include an outwardly extending hook region, so that a portion of the via is disposed beneath the conductive line hook region, forming a locking region within the via proximate the conductive line hook region.

    摘要翻译: 在第一绝缘层中形成导线。 在导电线和第一绝缘层上形成第二绝缘层。 通孔延伸穿过第二绝缘层以至少接触导电线的顶表面。 通孔还延伸穿过第一绝缘层以接触导电线的至少一个侧壁的至少顶部。 导电线侧壁可以包括向外延伸的钩区域,使得通孔的一部分设置在导线钩区域下方,在接近导线钩区域的通孔内形成锁定区域。

    Plasma RIE polymer removal
    17.
    发明授权
    Plasma RIE polymer removal 失效
    等离子体RIE聚合物去除

    公开(公告)号:US06758223B1

    公开(公告)日:2004-07-06

    申请号:US09603254

    申请日:2000-06-23

    IPC分类号: B08B600

    摘要: A method for removal of post reactive ion etch by-product from a semiconductor wafer surface or microelectronic composite structure comprising: supplying a reducing gas plasma incorporating a forming gas mixture selected from the group consisting of a mixture of N2/H2 or a mixture of NH3/H2 into a vacuum chamber in which a semiconductor wafer surface or a microelectronic composite structure is supported to form a post-RIE polymer material by-product on the composite structure without significant removal of an organic, low K material which has also been exposed to the reducing gas plasma; and removing the post-RIE polymer material by-product with a wet clean.

    摘要翻译: 一种用于从半导体晶片表面或微电子复合结构去除后反应离子蚀刻副产物的方法,包括:提供还原气体等离子体,该还原气体等离子体包含选自N2 / H2或NH3混合物的成形气体混合物 / H2进入真空室,其中半导体晶片表面或微电子复合结构被支撑以在复合结构上形成后RIE聚合物材料副产物,而不显着除去已经暴露于 还原气体等离子体; 并用湿式清洁剂除去后RIE聚合物材料副产物。

    Composite intermetal dielectric structure including low-k dielectric material
    18.
    发明授权
    Composite intermetal dielectric structure including low-k dielectric material 失效
    复合金属间电介质结构包括低k电介质材料

    公开(公告)号:US07041574B2

    公开(公告)日:2006-05-09

    申请号:US10894259

    申请日:2004-07-19

    IPC分类号: H01L21/76

    摘要: A method of forming a composite intermetal dielectric structure is provided. An initial intermetal dielectric structure is provided, which includes a first dielectric layer and two conducting lines. The two conducting lines are located in the first dielectric layer. A portion of the first dielectric layer is removed between the conducting lines to form a trench. The trench is filled with a second dielectric material. The second dielectric material is a low-k dielectric having a dielectric constant less than that of the first dielectric layer.

    摘要翻译: 提供了形成复合金属间电介质结构的方法。 提供初始的金属间电介质结构,其包括第一介电层和两条导线。 两条导线位于第一介质层中。 第一介电层的一部分在导线之间被去除以形成沟槽。 沟槽填充有第二电介质材料。 第二电介质材料是具有小于第一介电层的介电常数的介电常数的低k电介质。

    Reduced splattering of unpassivated laser fuses
    20.
    发明授权
    Reduced splattering of unpassivated laser fuses 有权
    降低未激活的激光保险丝的飞溅

    公开(公告)号:US06872648B2

    公开(公告)日:2005-03-29

    申请号:US10246999

    申请日:2002-09-19

    IPC分类号: H01L23/525 H01L21/71

    摘要: The act of blowing an unpassivated electrical fuse (for example, fuse 405) using a laser can result in the splattering of the fuse material and result in electrical short circuits. A blast barrier (for example blast barrier 406) formed around an area of the fuse that is blown by the laser helps to contain the splattering of the fuse material. The blast barrier may be formed from the same material as the fuses themselves and, therefore, can be created in the same fabrication step.

    摘要翻译: 使用激光器吹动未激活的电熔丝(例如,熔丝405)的行为可能导致熔丝材料的飞溅并导致电气短路。 形成在由激光器熔断的熔丝区域周围形成的防爆屏障(例如鼓风屏障406)有助于容纳熔丝材料的飞溅。 防爆屏障可以由与熔丝本身相同的材料形成,因此可以在相同的制造步骤中形成。