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    • 3. 发明授权
    • Vitreous silica crucible
    • 石英玻璃坩埚
    • US08936684B2
    • 2015-01-20
    • US13308344
    • 2011-11-30
    • Toshiaki SudoHiroshi KishiKen Kitahara
    • Toshiaki SudoHiroshi KishiKen Kitahara
    • C30B15/10C03B19/09
    • C30B15/10C03B19/095Y10T117/10Y10T117/1024Y10T117/1032
    • The present invention provides a vitreous silica crucible which can suppress buckling and sidewall lowering of the crucible and the generation of cracks. According to the present invention, a vitreous silica crucible is provided for pulling a silicon single crystal having a wall, the wall including a non-doped inner surface layer made of natural vitreous silica or synthetic vitreous silica, a mineralizing element-maldistributed vitreous silica layer containing dispersed island regions each containing a mineralizing element, and wherein the vitreous silica of the island regions and the vitreous silica of a surrounding region of the island regions is a combination of mineralizing element-doped natural vitreous silica and non-doped synthetic vitreous silica, or a combination of mineralizing element-doped synthetic vitreous silica and non-doped natural vitreous silica, and the inner surface layer is made of vitreous silica of a different kind from that of the island region.
    • 本发明提供一种可以抑制坩埚的翘曲和侧壁降低以及产生裂纹的石英玻璃坩埚。 根据本发明,提供一种玻璃状石英坩埚,用于拉拔具有壁的硅单晶,所述壁包括由天然氧化硅玻璃或合成玻璃态二氧化硅制成的非掺杂内表面层,矿化元素分布不均的玻璃状石英层 含有各自含有矿化元素的分散的岛状区域,岛状区域的石英二氧化硅和岛状区域的周围区域的玻璃态二氧化硅是矿化元素掺杂天然玻璃质石英和非掺杂合成玻璃态二氧化硅的组合, 或矿化元素掺杂的合成玻璃体二氧化硅和非掺杂天然玻璃体二氧化硅的组合,并且内表面层由与岛状区域不同种类的玻璃态二氧化硅制成。
    • 4. 发明申请
    • VITREOUS SILICA CRUCIBLE
    • 紫外线可溶性
    • US20120137964A1
    • 2012-06-07
    • US13308344
    • 2011-11-30
    • Toshiaki SudoHiroshi KishiKen Kitahara
    • Toshiaki SudoHiroshi KishiKen Kitahara
    • C30B15/10
    • C30B15/10C03B19/095Y10T117/10Y10T117/1024Y10T117/1032
    • The present invention provides a vitreous silica crucible which can suppress buckling and sidewall lowering of the crucible and the generation of cracks. According to the present invention, a vitreous silica crucible is provided for pulling a silicon single crystal having a wall, the wall including a non-doped inner surface layer made of natural vitreous silica or synthetic vitreous silica, a mineralizing element-maldistributed vitreous silica layer containing dispersed island regions each containing a mineralizing element, and wherein the vitreous silica of the island regions and the vitreous silica of a surrounding region of the island regions is a combination of mineralizing element-doped natural vitreous silica and non-doped synthetic vitreous silica, or a combination of mineralizing element-doped synthetic vitreous silica and non-doped natural vitreous silica, and the inner surface layer is made of vitreous silica of a different kind from that of the island region.
    • 本发明提供一种可以抑制坩埚的翘曲和侧壁降低以及产生裂纹的石英玻璃坩埚。 根据本发明,提供一种玻璃状石英坩埚,用于拉拔具有壁的硅单晶,所述壁包括由天然氧化硅玻璃或合成玻璃态二氧化硅制成的非掺杂内表面层,矿化元素分布不均的玻璃状石英层 含有各自含有矿化元素的分散的岛状区域,岛状区域的石英二氧化硅和岛状区域的周围区域的玻璃态二氧化硅是矿化元素掺杂天然玻璃质石英和非掺杂合成玻璃态二氧化硅的组合, 或矿化元素掺杂的合成玻璃体二氧化硅和非掺杂天然玻璃体二氧化硅的组合,并且内表面层由与岛状区域不同种类的玻璃态二氧化硅制成。
    • 10. 发明申请
    • VITREOUS SILICA CRUCIBLE
    • 紫外线可溶性
    • US20120137963A1
    • 2012-06-07
    • US13308250
    • 2011-11-30
    • Toshiaki SUDOKen KITAHARAKoichi SUZUKIShinsuke YAMAZAKI
    • Toshiaki SUDOKen KITAHARAKoichi SUZUKIShinsuke YAMAZAKI
    • C30B15/10
    • C30B15/10Y10T117/1032
    • Provided is a vitreous silica crucible, which is resistant to deformation and corrosion even when heated at high temperature for a long time. There is provided a vitreous silica crucible of the present invention including a substantially cylindrical straight body portion, a curved bottom portion, and a corner portion smoothly connecting the straight body portion and the bottom portion, wherein a wall of the vitreous silica crucible includes, from an inner surface side, a transparent layer and a bubble-containing layer, and a ratio of a thickness of the bubble-containing layer with respect to a thickness of the transparent layer at an intermediate position between an upper end and a lower end of the straight body portion is 0.7 to 1.4.
    • 提供一种二氧化硅玻璃坩埚,即使长时间在高温下加热也能抵抗变形和腐蚀。 提供了一种本发明的石英玻璃坩埚,其包括基本上圆柱形的直体部分,弯曲的底部部分和平滑地连接直体部分和底部部分的角部分,其中,石英坩埚坩埚的壁包括 内表面侧,透明层和含气泡层,以及气泡含量层的厚度相对于透明层的厚度在上端和下端之间的中间位置的比例 直体部分为0.7〜1.4。