Anodizing apparatus, utilizing a perforated negative electrode
    61.
    发明授权
    Anodizing apparatus, utilizing a perforated negative electrode 失效
    阳极氧化装置,利用穿孔的负极

    公开(公告)号:US06547938B1

    公开(公告)日:2003-04-15

    申请号:US09526869

    申请日:2000-03-16

    IPC分类号: C25D1700

    CPC分类号: H01L21/67017

    摘要: This invention is to reduce the influence of a gas generated by an anodizing reaction. A silicon substrate (101) to be processed is horizontally held. A negative electrode (129) is arranged on the upper side of the silicon substrate (101), and a positive electrode (114) is brought into contact with the lower surface of the silicon substrate (101). The space between the negative electrode (129) and the silicon substrate (101) is filled with an HF solution (132). The negative electrode (129) has a number of degassing holes (130) to prevent a gas generated by the anodizing reaction from staying on the lower side of the negative electrode (129).

    摘要翻译: 本发明是为了减少由阳极反应产生的气体的影响。 要处理的硅衬底(101)被水平保持。 在硅基板(101)的上侧配置有负极(129),使正极(114)与硅基板(101)的下表面接触。 负极(129)和硅衬底(101)之间的空间填充有HF溶液(132)。 负极(129)具有多个脱气孔(130),以防止阳极反应产生的气体停留在负极(129)的下侧。

    Anodizing apparatus
    62.
    发明授权
    Anodizing apparatus 失效
    阳极氧化装置

    公开(公告)号:US5951833A

    公开(公告)日:1999-09-14

    申请号:US979602

    申请日:1997-11-26

    申请人: Kenji Yamagata

    发明人: Kenji Yamagata

    摘要: A holder (102) made from an HF-resistant material includes annular suction pads (105, 108). The suction pad (105) is used to hold a small silicon substrate by suction, and the suction pad (108) is used to hold a large silicon substrate by suction. This makes silicon substrates with various sizes processable. A silicon substrate is held by suction by reducing a pressure in a space in a groove of the suction pad by a pump (120). An opening (103) is formed in the holder (102) so that the both surfaces of the silicon substrate are brought into contact with an HF solution (115). The silicon substrate is anodized by applying a DC voltage by using a platinum electrode (109a) as a negative electrode and a platinum electrode (109b) as a positive electrode, and thereby a substrate having a porous layer is produced.

    摘要翻译: 由耐高温材料制成的支架(102)包括环形吸盘(105,108)。 吸盘(105)用于通过抽吸来保持小的硅衬底,并且吸盘(108)用于通过抽吸来容纳大的硅衬底。 这使得具有各种尺寸的硅衬底可加工。 通过泵(120)减小吸盘的凹槽中的空间中的压力,通过抽吸来保持硅衬底。 在保持器(102)中形成开口(103),使得硅衬底的两个表面与HF溶液(115)接触。 通过使用作为负极的铂电极(109a)和作为正极的铂电极(109b)施加直流电压来阳极氧化硅衬底,由此制造具有多孔层的衬底。

    Method of forming crystal
    63.
    发明授权
    Method of forming crystal 失效
    晶体形成方法

    公开(公告)号:US5580381A

    公开(公告)日:1996-12-03

    申请号:US552439

    申请日:1995-11-03

    申请人: Kenji Yamagata

    发明人: Kenji Yamagata

    IPC分类号: C30B25/18 H01L21/20 C30B25/04

    摘要: A crystal forming method comprises disposing, on a surface of a substrate or in recessed portion formed in the substrate having a surface with a low nucleation density, primary seed having a sufficient small volume to singly aggregate and a rectangular prismatic or cubic shape in which all the sides and the bottom are surrounded by an insulator in contact therewith; performing heat treatment for aggregating the primary seed to form monocrystalline seed crystal having controlled plane orientation and in-plane orientation; and selectively growing monocrystal by crystal growth treatment using the seed crystal as starting point.

    摘要翻译: 一种晶体形成方法,包括在基板表面或形成在具有低成核密度的表面的基板的凹部中设置具有足够小体积的单晶聚集体和矩形棱柱形或立方体形,其中全部 侧面和底部被与其接触的绝缘体包围; 进行用于聚集初级种子的热处理以形成具有受控平面取向和面内取向的单晶晶种; 并通过晶种生长处理以晶种为起点选择性地生长单晶。