ADVANCED CATALYSTS FOR FINE CHEMICAL AND PHARMACEUTICAL APPLICATIONS
    2.
    发明申请
    ADVANCED CATALYSTS FOR FINE CHEMICAL AND PHARMACEUTICAL APPLICATIONS 审中-公开
    精细化学和药物应用的先进催化剂

    公开(公告)号:US20110144382A1

    公开(公告)日:2011-06-16

    申请号:US12969264

    申请日:2010-12-15

    申请人: Qinghua Yin Xiwang Qi

    发明人: Qinghua Yin Xiwang Qi

    摘要: A catalyst comprising a plurality of support nanoparticles and a plurality of catalytic nanoparticles. At least one catalytic nanoparticle is bonded to each support nanoparticle. The catalytic particles have a size and a concentration, wherein a first configuration of the size and the concentration of the catalytic nanoparticles enables a first catalysis result and a second configuration of the size and the concentration of the catalytic nanoparticles enables a second catalysis result, with the first and second configurations having a different size or concentration, and the first and second catalysis results being different. In some embodiments, the first catalysis result is a selective reduction of a first selected functional group without reducing one or more other functional groups, and the second catalysis result is a selective reduction of a second selected functional group without reducing one or more other functional groups.

    摘要翻译: 包含多个载体纳米颗粒和多个催化纳米颗粒的催化剂。 至少一种催化纳米颗粒结合到每个载体纳米颗粒上。 催化颗粒具有尺寸和浓度,其中催化纳米颗粒的尺寸和浓度的第一配置使得能够实现第一催化结果,并且催化纳米颗粒的尺寸和浓度的第二配置使得能够产生第二催化结果, 第一和第二构型具有不同的尺寸或浓度,第一和第二催化结果不同。 在一些实施方案中,第一催化结果是选择性还原第一选择的官能团而不减少一个或多个其它官能团,并且第二催化结果是选择性还原第二选择的官能团而不减少一个或多个其它官能团 。

    Nano-Structured Composite Materials for Chemical Air Pollutant and Odor Removal from Air

    公开(公告)号:US20220088572A1

    公开(公告)日:2022-03-24

    申请号:US16948463

    申请日:2020-09-18

    申请人: Xiwang Qi Mei Jiang

    发明人: Xiwang Qi Mei Jiang

    摘要: Described is related to nano-structured composite materials for removing harmful chemical air pollutants and odors from the air to prevent people from breathing in disease-causing chemicals and provide them with clean indoor air. The nano-structured composite materials comprise nano-catalysts embedded in the pores of nano-structured substrate materials selected from the group consisting of nano-porous carbon, nano-porous rare earth oxide, nano-porous zeolite, nano-porous alumina and nano-porous silica. The nano-scale synergy of nano-catalysts and nano-structured substrate materials provides effective air filtration materials for the complete trapping and elimination of the full spectrum of chemical air pollutants including both organic and inorganic compounds and odors for indoor spaces, which HEPA or activated carbon filters cannot achieve.

    METHOD AND APPARATUS TO REDUCE PIN VOIDS
    10.
    发明申请
    METHOD AND APPARATUS TO REDUCE PIN VOIDS 审中-公开
    减少PIN VOIDS的方法和装置

    公开(公告)号:US20090250824A1

    公开(公告)日:2009-10-08

    申请号:US12098311

    申请日:2008-04-04

    IPC分类号: H01L23/48 H01L21/00

    摘要: A semiconductor package comprises a substrate that utilizes one or more pins to form external interconnects. The pins are bonded to bonding pads on the substrate by solder. The pins may each has a pin head that may have a bonding surface, wherein the bonding surface may comprises a center portion and a side portion that is tapered away relative to the center portion. In some embodiments, the bonding surface may comprise a round shape. In some embodiments, a gas escape path may be provided by the shape of the bonding surface to increase pin pull strength and/or solder strength. The package may further comprise a surface finish that may comprise a palladium layer with a reduced thickness to reduce the amount of palladium based IMC precipitation into the solder.

    摘要翻译: 半导体封装包括利用一个或多个引脚形成外部互连的基板。 引脚通过焊料与基板上的焊盘接合。 销可以各自具有可以具有接合表面的销头,其中接合表面可以包括中心部分和相对于中心部分逐渐变细的侧部部分。 在一些实施例中,接合表面可以包括圆形。 在一些实施例中,可以通过接合表面的形状提供气体逸出路径,以增加引脚拉伸强度和/或焊接强度。 该封装还可以包括表面光洁度,其可以包括具有减小厚度的钯层,以减少基于钯的IMC沉淀到焊料中的量。