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    • 3. 发明公开
    • 실리콘 단결정의 인상 방법
    • 提高硅单晶的方法
    • KR1020060035644A
    • 2006-04-26
    • KR1020057025104
    • 2005-01-25
    • 가부시키가이샤 섬코
    • 하라다가즈히로후카츠노리히토후센린스즈키요지
    • C30B29/06C30B15/20C30B15/00
    • C30B15/14C30B15/305C30B29/06C30B35/00Y10S117/917Y10T117/1068Y10T117/1072
    • [PROBLEMS] To produce a silicon single crystal ingot free from point-defect aggregate over almost its entire length without decreasing pure margin. [MEANS OF SOLVING PROBLEMS] A heat shielding member (36) is provided with a bulging unit (41) provided at the lower part of a tube part (37) to swell in the inner side of the tube part and having a heat storing member (47) provided inside thereof. An silicon single crystal ingot (25) is lifted such that the flow rate of an inert gas flowing down between the bulging unit (41) at the heat shielding member (36) and the ingot (25) when a top-side ingot (25a) of the silicon single crystal ingot (25) is lifted is larger than the flow rate of an inert gas flowing down between the bulging unit (41) and the ingot (25) when a bottom-side ingot (25b) of the silicon single crystal ingot (25) is lifted. Alternatively, the intensity of a cusp magnetic field (53) when the top-side ingot (25a) is lifted is set larger than that of the cusp magnetic field (53) when the bottom-side ingot (25b) is lifted.
    • [问题]在几乎整个长度上生产没有点缺陷聚集体的硅单晶锭,而不降低纯边缘。 解决问题的手段隔热构件(36)设置有设置在管部(37)的下部的膨胀单元(41),以在管部的内侧膨胀并具有储热构件 (47)。 提升硅单晶锭(25),使得在顶部铸锭(25a)处,在隔热构件(36)的凸出单元(41)和铸锭(25)之间向下流动的惰性气体的流量 硅单晶锭(25)的底侧铸锭(25b)的升高大于当单个硅单晶锭(25)的底侧铸锭(25b)处于膨胀单元(41)和铸块(25)之间时向下流动的惰性气体的流量 水晶锭(25)被提起。 或者,当提升底侧铸锭(25b)时,当顶侧铸锭(25a)被提升时,尖端磁场(53)的强度被设定为大于尖端磁场(53)的强度。
    • 6. 发明公开
    • 실리콘 단결정 인양 장치의 열 차폐 부재
    • 硅单晶拉伸系统的热屏元件
    • KR1020050044808A
    • 2005-05-12
    • KR1020057004687
    • 2003-09-12
    • 가부시키가이샤 섬코
    • 하라다가즈히로후센린스즈키요지후루야히사시아베히데노부
    • C30B29/06C30B15/00
    • C30B29/06C30B15/14C30B15/203Y10T117/1068Y10T117/1072Y10T117/1076Y10T117/1088
    • A thermal shield member (36) being provided in a system for pulling a silicon single crystal rod (25) from molten silicon (12) stored in a quartz crucible (13), comprising a tubular section (37) surrounding the outer circumferential surface of the silicon single crystal rod and shielding it from radiation heat from a heater (18), an inflating section (41) provided at a lower part of the tubular section, and a ring-like heat accumulating member (47) provided in the inflating section. The heat accumulating member has a thermal conductivity of 5 W/(m°C) or less, the inner circumferential surface of the heat accumulating member has height (H1) between 10 mm and d/2 where d is the diameter of the silicon single crystal rod, the minimum interval (W1) between the outer circumferential surface of the silicon single crystal rod and the inner circumferential surface of the heat accumulating member is between 10 mm and 0.2d, the vertical distance (H2) between the upper edge of the outer circumferential surface of the heat accumulating member and the lowermost part is between 10 mm and d, and the minimum interval (W2) between the inner circumferential surface of the quartz crucible and the outer circumferential surface of the heat accumulating member is between 20 mm and d/4.
    • 一种热屏蔽构件(36),其设置在用于将硅单晶棒(25)从存储在石英坩埚(13)中的熔融硅(12)拉出的系统中,所述系统包括管状部分(37) 所述硅单晶棒并且防止来自加热器(18)的辐射热,设置在所述管状部分的下部的充气部(41)和设置在所述充气部中的环状蓄热部件(47) 。 蓄热构件的热导率为5W /(m℃)以下,蓄热构件的内周面的高度(H1)在10mm和d / 2之间,其中d是硅单体的直径 晶体棒,硅单晶棒的外周面与蓄热构件的内周面之间的最小间隔(W1)在10mm和0.2d之间,则上边缘之间的垂直距离(H2) 蓄热构件的外周面和最下部的距离在10mm和d之间,石英坩埚的内周面与蓄热构件的外周面之间的最小间隔(W2)在20mm与 D / 4。