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    • 6. 发明授权
    • Single-crystalline silicon alkaline texturing with glycerol or ethylene glycol additives
    • 甘油或乙二醇添加剂的单晶硅碱性织构
    • US08440494B2
    • 2013-05-14
    • US13112465
    • 2011-05-20
    • Kathryn C. FisherJun LiuSatyavolu S. Papa RaoGeorge G. TotirJames Vichiconti
    • Kathryn C. FisherJun LiuSatyavolu S. Papa RaoGeorge G. TotirJames Vichiconti
    • H01L21/00
    • C09K13/02H01L31/02363Y02E10/50
    • Alternative additives that can be used in place of isopropyl alcohol in aqueous alkaline etchant solutions for texturing a surface of a single-crystalline silicon substrate are provided. The alternative additives do not have volatile constituents, yet can be used in an aqueous alkaline etchant solution to provide a pyramidal shaped texture surface to the single-crystalline silicon substrate that is exposed to such an etchant solution. Also provided is a method of forming a textured silicon surface. The method includes immersing a single-crystalline silicon substrate into an etchant solution to form a pyramid shaped textured surface on the single-crystalline silicon substrate. The etchant solution includes an alkaline component, silicon (etched into the solution as a bath conditioner) and glycerol or ethylene glycol as an additive. The textured surface of the single-crystalline silicon substrate has (111) faces that are now exposed.
    • 提供了可用于代替异丙醇的水性碱性蚀刻剂溶液中用于织构单晶硅衬底的表面的替代添加剂。 替代的添加剂不具有挥发性成分,但也可用于碱性蚀刻剂水溶液中以向暴露于这种蚀刻剂溶液的单晶硅衬底提供金字塔形的纹理表面。 还提供了形成纹理硅表面的方法。 该方法包括将单晶硅衬底浸入蚀刻剂溶液中以在单晶硅衬底上形成棱锥形织构表面。 蚀刻剂溶液包括碱性组分,硅(作为浴调节剂蚀刻到溶液中)和甘油或乙二醇作为添加剂。 单晶硅衬底的纹理表面具有现在暴露的(111)面。
    • 10. 发明授权
    • Layer transfer using boron-doped SiGe layer
    • 使用硼掺杂的SiGe层进行层转移
    • US07935612B1
    • 2011-05-03
    • US12700801
    • 2010-02-05
    • Stephen BedellKeith FogelDaniel InnsJeehwan KimDevendra SadanaJames Vichiconti
    • Stephen BedellKeith FogelDaniel InnsJeehwan KimDevendra SadanaJames Vichiconti
    • H01L21/30H01L21/02
    • H01L21/187
    • A method for layer transfer using a boron-doped silicon germanium (SiGe) layer includes forming a boron-doped SiGe layer on a bulk silicon substrate; forming an upper silicon (Si) layer over the boron-doped SiGe layer; hydrogenating the boron-doped SiGe layer; bonding the upper Si layer to an alternate substrate; and propagating a fracture at an interface between the boron-doped SiGe layer and the bulk silicon substrate. A system for layer transfer using a boron-doped silicon germanium (SiGe) layer includes a bulk silicon substrate; a boron-doped SiGe layer formed on the bulk silicon substrate, such that the boron-doped SiGe layer is located underneath an upper silicon (Si) layer, wherein the boron-doped SiGe layer is configured to propagate a fracture at an interface between the boron-doped SiGe layer and the bulk silicon substrate after hydrogenation of the boron-doped SiGe layer; and an alternate substrate bonded to the upper Si layer.
    • 使用硼掺杂硅锗(SiGe)层进行层转移的方法包括在体硅衬底上形成硼掺杂的SiGe层; 在掺杂硼的SiGe层上形成上硅(Si)层; 氢化硼掺杂的SiGe层; 将上部Si层结合到替代的基底上; 并在硼掺杂的SiGe层和体硅衬底之间的界面处传播断裂。 使用硼掺杂硅锗(SiGe)层的层转移系统包括体硅衬底; 形成在本体硅衬底上的硼掺杂SiGe层,使得掺杂硼的SiGe层位于上硅(Si)层的下方,其中掺硼的SiGe层被配置为在 硼掺杂的SiGe层和硼硅掺杂SiGe层氢化后的体硅衬底; 以及与上部Si层接合的替代基板。