Method of forming on-chip decoupling capacitor with bottom electrode layer having surface roughness
    2.
    发明申请
    Method of forming on-chip decoupling capacitor with bottom electrode layer having surface roughness 有权
    形成具有表面粗糙度的底部电极层的片上去耦电容器的方法

    公开(公告)号:US20060138592A1

    公开(公告)日:2006-06-29

    申请号:US11317694

    申请日:2005-12-23

    IPC分类号: H01L29/00

    摘要: On-chip decoupling capacitor structures, and methods of fabricating such decoupling capacitors are disclosed. On-chip decoupling capacitors help to reduce or prevent L di/dt voltage droop on the power grid for high surge current conditions. The inclusion of one or more decoupling capacitors on a chip, in close proximity to the power grid conductors reduces parasitic inductance and thereby provides improved decoupling performance with respect to high frequency noise. In one embodiment of the present invention, a capacitor stack structure is inserted between metal interconnect layers. Such a capacitor stack may consist of a bottom electrode/barrier; a thin dielectric material having a high dielectric constant; and a top electrode/barrier. In an alternative embodiment, the bottom electrode and/or bottom metal interconnect layer have three dimensional texture to increase the surface area of the capacitor. An illustrative method embodying the present invention, includes fabricating the on-chip decoupling capacitor stack structure and electrically connecting the capacitor to provide efficient capacitive de-coupling. In order to facilitate the removal of photoresist by an oxygen plasma process prior to exposing copper conductors during the capacitor stack etch, an Al hardmask can be used to protect the capacitor formed with Ta2O5 dielectric, or a W hardmask can be used to protect the capacitor formed with BST dielectric.

    摘要翻译: 公开了片上去耦电容器结构以及制造这种去耦电容器的方法。 片内去耦电容有助于在高浪涌电流条件下降低或防止电网上的L di / dt电压下降。 将一个或多个去耦电容器包含在靠近电力电网导体的芯片上减小了寄生电感,从而提供了相对于高频噪声的改进的去耦性能。 在本发明的一个实施例中,在金属互连层之间插入电容器堆叠结构。 这样的电容器堆叠可以由底部电极/屏障组成; 具有高介电常数的薄介电材料; 和顶部电极/屏障。 在替代实施例中,底部电极和/或底部金属互连层具有三维结构以增加电容器的表面积。 体现本发明的说明性方法包括制造片上去耦电容器堆叠结构并电连接电容器以提供有效的电容去耦合。 为了在电容器堆叠蚀刻期间在铜导体暴露之前通过氧​​等离子体工艺促进光致抗蚀剂的去除,可以使用Al硬掩模来保护由Ta 2 O 5形成的电容器 电介质或W硬掩模可用于保护由BST电介质形成的电容器。

    Enhanced on-chip decoupling capacitors and method of making same
    3.
    发明申请
    Enhanced on-chip decoupling capacitors and method of making same 有权
    增强片上去耦电容及其制作方法

    公开(公告)号:US20050259380A1

    公开(公告)日:2005-11-24

    申请号:US10766674

    申请日:2004-01-27

    IPC分类号: H01L21/02 H01L27/08 H01G4/228

    CPC分类号: H01L28/87 H01L27/0805

    摘要: An apparatus including a capacitor formed between metallization layers on a circuit, the capacitor including a bottom electrode coupled to a metal layer and a top electrode coupled to a metal via wherein the capacitor has a corrugated sidewall profile. A method including forming an interlayer dielectric including alternating layers of dissimilar dielectric materials in a multilayer stack over a metal layer of a device structure; forming a via having a corrugated sidewall; and forming a decoupling capacitor stack in the via that conforms to the sidewall of the via.

    摘要翻译: 一种包括在电路上的金属化层之间形成的电容器的装置,所述电容器包括耦合到金属层的底部电极和耦合到金属通孔的顶部电极,其中所述电容器具有波纹侧壁轮廓。 一种方法,包括在器件结构的金属层上的多层堆叠中形成包含不同介电材料的交替层的层间电介质; 形成具有波形侧壁的通孔; 以及在通孔中形成去耦电容器叠层,其符合通孔的侧壁。

    Method of smoothing waveguide structures
    4.
    发明申请
    Method of smoothing waveguide structures 有权
    波导结构平滑的方法

    公开(公告)号:US20050111806A1

    公开(公告)日:2005-05-26

    申请号:US10721448

    申请日:2003-11-24

    IPC分类号: G02B6/122 G02B6/136 G02B6/10

    CPC分类号: G02B6/136 G02B6/122

    摘要: A semiconductor based structure containing substantially smoothed waveguides having a rounded surface is disclosed, as well as methods of fabricating such a structure. The substantially smoothed waveguides may be formed of waveguide materials such as amorphous silicon or stoichiometric silicon nitride. The substantially smoothed waveguides are formed with an isotropic wet etch combined with sonic energy.

    摘要翻译: 公开了一种包含具有圆形表面的基本上平滑的波导的基于半导体的结构,以及制造这种结构的方法。 基本平滑的波导可以由波导材料形成,例如非晶硅或化学计量的氮化硅。 基本上平滑的波导由与声能结合的各向同性湿蚀刻形成。

    Methods of making an integrated waveguide photodetector
    10.
    发明申请
    Methods of making an integrated waveguide photodetector 审中-公开
    制造集成波导光电检测器的方法

    公开(公告)号:US20060093967A1

    公开(公告)日:2006-05-04

    申请号:US11303587

    申请日:2005-12-15

    申请人: Bruce Block

    发明人: Bruce Block

    IPC分类号: G03C5/00

    摘要: An integrated waveguide and photodetector which are evanescently coupled, and methods of making such integrated waveguide and photodetector.

    摘要翻译: 褪去耦合的集成波导和光电检测器以及制造这种集成波导和光电探测器的方法。