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    • 2. 发明授权
    • Vacuum chamber made of aluminum or its alloys, and surface treatment and
material for the vacuum chamber
    • 由铝或其合金制成的真空室,以及用于真空室的表面处理和材料
    • US6027629A
    • 2000-02-22
    • US836469
    • 1997-05-16
    • Jun HisamotoKoji WadaKoki IkedaMasahiro Yanagawa
    • Jun HisamotoKoji WadaKoki IkedaMasahiro Yanagawa
    • B01J3/00B01J19/02C23C16/44C25D11/04C25D11/12
    • C23C16/4404B01J19/02B01J3/006C25D11/045C25D11/12B01J2219/024Y10T428/249953Y10T428/249954Y10T428/249956
    • The present invention relates to a vacuum chamber and chamber parts made of aluminum or its alloys which exhibit excellent corrosion resistance to a corrosive gas or plasma introduced into the vacuum chamber, the surface treatment, and material for the vacuum chamber. The vacuum chamber has a porous layer with a structure in which a pore diameter at the top thereof is small, while a pore diameter at the bottom thereof is large. In order to give such a structure to the porous layer, a final anodizing voltage is set to be higher than an initial anodizing voltage when the surface of the base material is anodized. After the porous-type anodizing is completed, non-porous type anodizing may be conducted so as to grow a barrier layer. Furthermore, the base material made of aluminum alloy preferably has particles such as precipitates and/or deposits with a diameter of 10 .mu.m or less in average, and the precipitates and/or deposits are arranged in parallel with a largest surface of the base material.
    • PCT No.PCT / JP95 / 02263 Sec。 371日期:1997年5月16日 102(e)日期1997年5月16日PCT提交1995年11月6日PCT公布。 公开号WO96 / 15295 日期1996年5月23日本发明涉及一种由铝或其合金制成的真空室和室部件,其对被引入真空室的腐蚀性气体或等离子体,表面处理和真空室的材料表现出优异的耐腐蚀性。 真空室具有其顶部的孔径小的多孔层,底部的孔径大。 为了将这种结构赋予多孔层,当阳极氧化基底材料的表面时,最终的阳极氧化电压被设定为高于初始阳极氧化电压。 在多孔型阳极氧化完成之后,可以进行无孔型阳极氧化以便生长阻挡层。 此外,由铝合金制成的基材优选具有平均直径为10μm以下的析出物和/或沉积物的粒子,并且析出物和/或沉积物与基材的最大表面平行地排列 。
    • 3. 发明授权
    • Chamber material made of Al alloy and heater block
    • 室内材料由铝合金和加热块组成
    • US06521046B2
    • 2003-02-18
    • US09773638
    • 2001-02-02
    • Toshiyuki TanakaKoji WadaJun HisamotoHiroki SawadaHiroshi Matsuura
    • Toshiyuki TanakaKoji WadaJun HisamotoHiroki SawadaHiroshi Matsuura
    • C23C1600
    • H01J37/32467
    • A chamber material made of Al alloy excellent in thermal cracking resistance and chemical and/or physical corrosion resistance and capable of reducing contamination excellently and further having excellent and wide applicable brazing property in a high temperature corrosive circumstance, in which the substrate aluminum material for the chamber material made of Al alloy having an anodized film comprises 0.1 to 2.0% Si, 0.1 to 3.5% Mg, 0.02 to 4.0% Cu on the mass% basis and the balance of Al and impurity element with Cr in the impurity elements being less than 0.04%. Preferably, Fe is 0.1% or less and Mn is 0.04% or less in the impurity element and, further, the total sum of impurity elements other than Cr and Mn being restricted to 0.1% or less. This invention can be utilized suitably to various materials used in high temperature corrosive circumstance, particularly, in high temperature corrosive gas or plasma atmosphere.
    • 由耐热龟裂性,耐化学腐蚀性和/或物理耐腐蚀性优异并且能够在高温腐蚀环境中具有优异且广泛适用的钎焊性能的,能够优异地降低污染的Al合金制的腔室材料,其中用于 具有阳极氧化膜的Al合金制成的室内材料以质量%计含有0.1〜2.0%的Si,0.1〜3.5%的Mg,0.02〜4.0%的Cu,余量的Al和杂质元素的杂质元素的Cr少于 0.04%。 优选的是,在杂质元素中,Fe为0.1%以下,Mn为0.04%以下,Cr,Mn以外的杂质元素的总和为0.1%以下。 本发明可以适用于高温腐蚀性环境中使用的各种材料,特别是在高温腐蚀性气体或等离子体气氛中。
    • 5. 发明申请
    • MEMBER FOR PLASMA TREATMENT APPARATUS AND PRODUCTION METHOD THEREOF
    • 等离子体处理装置的成员及其生产方法
    • US20110220289A1
    • 2011-09-15
    • US13129302
    • 2008-12-02
    • Toshiyuki TanakaJun HisamotoHiroto Sugano
    • Toshiyuki TanakaJun HisamotoHiroto Sugano
    • C23C16/50H01L21/3065C25D11/02
    • H01J37/32477C23C16/4404C25D11/045H01J37/32467H01J37/3255
    • A member for a plasma treatment apparatus is provided, which has excellent anti-sticking properties, is suitable, for example, as a lower electrode in CVD apparatuses, has a stable shape as the lower electrode, and can suppress abnormal discharge during plasma treatment. The member for a plasma treatment apparatus comprises a base material formed of an aluminum alloy having a smoothly machined surface and a treated anodic oxide coating provided on the surface of the base material and formed by hydrating an anodic oxide coating formed on the surface of the base material to form microcracks therein. The anodic oxide coating has a leak current density of more than 0.9×10−5 A/cm2 at an applied voltage of 100 V, a thickness of not less than 3 μm, an arithmetic average surface roughness of less than 1 μm, and a dissolution rate of less than 100 mg/dm2/15 min in a phosphoric and chromic acid immersion test. The flatness of the surface on which the anodic oxide coating has been formed is not more than 50 μm.
    • 提供了一种等离子体处理装置的构件,其具有优异的防粘性,适合于CVD装置中的下电极,作为下电极具有稳定的形状,并且可以抑制等离子体处理期间的异常放电。 用于等离子体处理装置的构件包括由具有平滑加工表面的铝合金形成的基材和经设置在基材表​​面上的经处理的阳极氧化物涂层,并且通过水合形成在基材表面上的阳极氧化物涂层 材料在其中形成微裂纹。 阳极氧化膜的施加电压为100V,厚度不小于3μm,算术平均表面粗糙度小于1μm,漏电流密度大于0.9×10 -5 A / cm 2, 在磷酸和铬酸浸渍试验中溶解速率小于100mg / dm2 / 15min。 已经形成阳极氧化物涂层的表面的平坦度不大于50μm。