CVD APPARATUS
    4.
    发明申请
    CVD APPARATUS 审中-公开
    CVD装置

    公开(公告)号:US20110121503A1

    公开(公告)日:2011-05-26

    申请号:US12850738

    申请日:2010-08-05

    IPC分类号: B23Q3/00

    摘要: Embodiments of the present invention generally relate to methods and apparatus for chemical vapor deposition (CVD) on a substrate, and, in particular, to a process chamber and components for use in metal organic chemical vapor deposition. The apparatus comprises a chamber body defining a process volume. A showerhead in a first plane defines a top portion of the process volume. A carrier plate extends across the process volume in a second plane forming an upper process volume between the showerhead and the susceptor plate. A transparent material in a third plane defines a bottom portion of the process volume forming a lower process volume between the carrier plate and the transparent material. A plurality of lamps forms one or more zones located below the transparent material. The apparatus provides uniform precursor flow and mixing while maintaining a uniform temperature over larger substrates thus yielding a corresponding increase in throughput.

    摘要翻译: 本发明的实施方案一般涉及用于基板上的化学气相沉积(CVD)的方法和装置,特别涉及用于金属有机化学气相沉积中的处理室和组件。 该装置包括限定处理量的室主体。 第一平面中的喷头定义了处理量的顶部。 载体板在第二平面中延伸过程体积,形成在喷头和基座板之间的上过程体积。 在第三平面中的透明材料限定了处理体积的底部,其在承载板和透明材料之间形成较低的处理体积。 多个灯形成位于透明材料下方的一个或多个区域。 该装置提供均匀的前体流动和混合,同时在较大的底物上保持均匀的温度,从而产生相应的生产量的增加。

    Beryllium oxide based ceramics
    7.
    发明授权
    Beryllium oxide based ceramics 失效
    氧化铍基陶瓷

    公开(公告)号:US4981823A

    公开(公告)日:1991-01-01

    申请号:US281919

    申请日:1988-12-07

    IPC分类号: C04B35/08

    CPC分类号: C04B35/08

    摘要: A ceramic article made from a mixture comprising (on a dry weight basis) magnesium oxide (MgO) in an amount up to 2% by weight, a defined rare earth oxide in amount up to 10% by weight, balance beryllium oxide, and trace elements, the defined rare earth oxide being zirconium oxide (ZrO.sub.2), hafnium oxide (HfO.sub.2), cerium oxide (Ce.sub.2 O.sub.3), yttrium oxide (Y.sub.2 O.sub.3), ytterbium oxide (Yb.sub.2 O.sub.3) or thorium oxide (ThO.sub.2). Such ceramic articles have much improved properties in particular higher densities than attainable hitherto and better crossbreak strength and surface smoothness as fired. The ceramic compositions can also be admixed with supplementary ceramic materials such as silicon carbide to produce microwave absorbing materials.

    摘要翻译: 一种由混合物制成的陶瓷制品,其含有至多2重量%的(基于干重的)氧化镁(MgO),至多10重量%的定义的稀土氧化物,平衡氧化铍和痕量 元素,所定义的稀土氧化物是氧化锆(ZrO 2),氧化铪(HfO 2),氧化铈(Ce 2 O 3),氧化钇(Y 2 O 3),氧化镱(Yb 2 O 3)或氧化钍(ThO 2)。 这种陶瓷制品具有特别高的密度,特别是可达到的迄今为止和更好的交叉裂纹强度和烧制时的表面平滑度。 陶瓷组合物也可以与补充陶瓷材料如碳化硅混合以产生微波吸收材料。