Methods for forming backside alignment markers useable in semiconductor lithography
    31.
    发明授权
    Methods for forming backside alignment markers useable in semiconductor lithography 有权
    形成用于半导体光刻的背面对准标记的方法

    公开(公告)号:US07223674B2

    公开(公告)日:2007-05-29

    申请号:US10840733

    申请日:2004-05-06

    IPC分类号: H01L21/301

    摘要: Disclosed herein are methods for forming photolithography alignment markers on the back side of a substrate, such as a crystalline silicon substrate used in the manufacture of semiconductor integrated circuits. According to the disclosed techniques, laser radiation is used to remove the material (e.g., silicon) from the back side of a substrate to form the back side alignment markers at specified areas. Such removal can comprise the use of laser ablation or laser-assisted etching. The substrate is placed on a motor-controlled substrate holding mechanism in a laser removal chamber, and the areas are automatically moved underneath the laser radiation to removal the material. The substrate holding mechanism can comprise a standard chuck (in which case use of a protective layer on the front side of the substrate is preferred), or a substrate clamping assembly which suspends the substrate at its edges (in which case the protective layer is not necessary). Alternatively, a stencil having holes corresponding to the shape of the back side alignment markers can be placed over the back side of the substrate to mitigate the need to move the substrate to the areas with precision.

    摘要翻译: 这里公开了在衬底的背面上形成光刻对准标记的方法,例如用于制造半导体集成电路的晶体硅衬底。 根据所公开的技术,使用激光辐射从衬底的背面去除材料(例如硅),以在特定区域形成背面对准标记。 这种去除可以包括使用激光烧蚀或激光辅助蚀刻。 将基板放置在激光去除室中的电动机控制的基板保持机构上,并且这些区域在激光辐射下自动移动以去除材料。 基板保持机构可以包括标准卡盘(在这种情况下优选使用基板的正面上的保护层)或将基板悬挂在其边缘处的基板夹持组件(在这种情况下保护层不是保护层) 必要)。 或者,具有与背面对准标记的形状对应的孔的模板可以放置在衬底的背面上,以减轻将衬底精确地移动到区域的需要。

    Methods for forming backside alignment markers useable in semiconductor lithography
    33.
    发明申请
    Methods for forming backside alignment markers useable in semiconductor lithography 审中-公开
    形成用于半导体光刻的背面对准标记的方法

    公开(公告)号:US20060226118A1

    公开(公告)日:2006-10-12

    申请号:US11449532

    申请日:2006-06-07

    IPC分类号: B44C1/22 C23F1/00

    摘要: Disclosed herein are methods for forming photolithography alignment markers on the back side of a substrate, such as a crystalline silicon substrate used in the manufacture of semiconductor integrated circuits. According to the disclosed techniques, laser radiation is used to remove the material (e.g., silicon) from the back side of a substrate to form the back side alignment markers at specified areas. Such removal can comprise the use of laser ablation or laser-assisted etching. The substrate is placed on a motor-controlled substrate holding mechanism in a laser removal chamber, and the areas are automatically moved underneath the laser radiation to removal the material. The substrate holding mechanism can comprise a standard chuck (in which case use of a protective layer on the front side of the substrate is preferred), or a substrate clamping assembly which suspends the substrate at its edges (in which case the protective layer is not necessary). Alternatively, a stencil having holes corresponding to the shape of the back side alignment markers can be placed over the back side of the substrate to mitigate the need to move the substrate to the areas with precision.

    摘要翻译: 这里公开了在衬底的背面上形成光刻对准标记的方法,例如用于制造半导体集成电路的晶体硅衬底。 根据所公开的技术,使用激光辐射从衬底的背面去除材料(例如硅),以在特定区域形成背面对准标记。 这种去除可以包括使用激光烧蚀或激光辅助蚀刻。 将基板放置在激光去除室中的电动机控制的基板保持机构上,并且这些区域在激光辐射下自动移动以去除材料。 基板保持机构可以包括标准卡盘(在这种情况下优选使用基板的正面上的保护层)或将基板悬挂在其边缘处的基板夹持组件(在这种情况下保护层不是保护层) 必要)。 或者,具有与背面对准标记的形状对应的孔的模板可以放置在衬底的背面上,以减轻将衬底精确地移动到区域的需要。

    Enhanced nickel hydroxide positive electrode materials for alkaline
rechargeable electrochemical cells
    39.
    发明授权
    Enhanced nickel hydroxide positive electrode materials for alkaline rechargeable electrochemical cells 失效
    用于碱性可充电电化学电池的增强型氢氧化镍正极材料

    公开(公告)号:US5523182A

    公开(公告)日:1996-06-04

    申请号:US333457

    申请日:1994-11-02

    摘要: A positive electrode material for use in electrochemical cells. This material comprises particles of positive electrode material including at least one electrochemically active hydroxide and a substantially continuous, uniform, encapsulant layer surrounding the particles of positive electrode material. The encapsulant layer is formed from a material which, upon oxidation during processing or during charging of the electrode, is convertible to a highly conductive form, and which, upon subsequent discharge of the electrode, does not revert to its previous form. Preferably, the electrochemically active hydroxide includes at least nickel hydroxide. The encapsulant layer is preferably formed from at least cobalt hydroxide or cobalt oxyhydroxide. This layer is formed on the particles of positive electrode material by precipitation from a cobalt salt solution, which can be a cobalt sulfate solution. Also disclosed are positive electrodes including the material and a precipitation method of forming the material.

    摘要翻译: 用于电化学电池的正极材料。 该材料包括正极材料颗粒,其包括至少一个电化学活性氢氧化物和围绕正极材料颗粒的基本上连续,均匀的包封层。 密封剂层由材料形成,该材料在处理过程中或在电极充电期间被氧化,可转换为高导电形式,并且在随后的电极放电时,其不会恢复到其先前的形式。 优选地,电化学活性氢氧化物至少包括氢氧化镍。 密封剂层优选由至少氢氧化钴或羟基氧化钴形成。 该层通过从可以是硫酸钴溶液的钴盐溶液中沉淀而形成在正极材料颗粒上。 还公开了包括材料的正电极和形成材料的沉淀方法。