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    • 3. 发明授权
    • Apparatus and method for the uniform distribution of crystal defects
upon a silicon single crystal
    • 在硅单晶上均匀分布晶体缺陷的装置和方法
    • US5704973A
    • 1998-01-06
    • US666654
    • 1996-06-18
    • Masahiro SakuradaWataru SatoTomohiko Ohta
    • Masahiro SakuradaWataru SatoTomohiko Ohta
    • C30B15/00C30B15/20C30B29/06C30B33/02H01L21/208
    • C30B29/06C30B15/00Y10T117/1032
    • Proposed is an improvement in the method and single crystal growing chamber for the preparation of a single crystal rod of silicon by the Czochralski method, according to which the distance between the surface of the melt of silicon contained in a crucible and the lower surface of the top wall of the crystal growing chamber is equal to or larger than the diameter of the crucible and the heat-insulating cylinder surrounding the crucible containing the melt of silicon and the heater has such a height as to reach the lower surface of the top wall of the chamber so as to keep the single crystal rod under growing is kept at a temperature not lower than 700.degree. C. until reaching the lower surface of the top wall of the chamber thereby decreasing the density of the crystal defects of BMD type in the seed end of the single crystal rod as grown so that the uniformity in the distribution of BMD density is increased throughout the single crystal rod.
    • 提出了通过切克劳斯基法(Czochralski method)制备单晶硅的方法和单晶生长室的改进,根据该方法,坩埚中包含的硅熔体表面与坩埚的下表面之间的距离 晶体生长室的顶壁等于或大于坩埚的直径,并且包含硅和加热器的熔体的坩埚周围的隔热圆筒具有如下高度:到达顶壁的下表面 保持单晶棒生长的室保持在不低于700℃的温度,直到到达室的顶壁的下表面,从而降低种子中BMD型晶体缺陷的密度 生长的单晶棒的端部,使得在整个单晶棒中BMD密度分布的均匀性增加。
    • 7. 发明申请
    • AIR HEAT EXCHANGER
    • 空气热交换器
    • US20150211781A1
    • 2015-07-30
    • US14405408
    • 2012-06-07
    • Wataru SatoShigeyuki Sasaki
    • Wataru SatoShigeyuki Sasaki
    • F25D21/14
    • F25D21/14F25B39/02F28D1/05383F28D2021/0071F28F1/128F28F1/325F28F17/005
    • Provided is an air heat exchanger capable of preventing an increase in ventilation resistance and a decrease in heat exchange efficiency due to condensation water generated on surfaces of heat transfer fins, without increasing thermal resistance of flat tubes and the heat transfer fins, and preventing scattering of water droplets downwind from the heat transfer fins. In the air heat exchanger including a plurality of flat tubes 2 and heat transfer fins 5 provided between the flat tubes 2 and on which air is blown, the flat tubes 2 include water draining grooves 4 on side surfaces on which the heat transfer fins 5 are provided and the heat transfer fins 5 include water guiding grooves 6 communicating with the water draining grooves 4. At least a groove wall 40 on the upwind side of an air blowing direction 10 among groove walls forming the water guiding grooves 6 is provided from a position of the upwind side from the water draining grooves 4 to the water draining grooves 4. The water guiding grooves 6 extend toward the water draining grooves 4 along the groove wall 40 on the upwind side and an area of a cross section perpendicular to an extension direction decreases toward the water draining grooves 4.
    • 提供一种空气热交换器,其能够防止由于传热翅片表面产生的冷凝水导致的通风阻力增加和热交换效率降低,而不增加扁平管和传热翅片的热阻,并且防止散热 水滴从传热翅片向下风向。 在包括设置在扁平管2之间的多个扁平管2和传热翅片5的空气热交换器中,扁平管2包括在其上具有传热翅片5的侧表面上的排水槽4 传热翅片5包括与排水槽4连通的导水槽6.至少在形成导水槽6的槽壁中的吹风方向10的上风侧的槽壁40从位置 从排水沟4向排水槽4的上风侧。导水槽6沿着上下风向侧的槽壁40向排水槽4延伸,与延伸方向垂直的截面的区域 朝向排水槽4减少。