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1.发明申请SILICA CRUCIBLE WITH PURE AND BUBBLE FREE INNER CRUCIBLE LAYER AND METHOD OF MAKING THE SAME 失效二氧化硅与纯净和无泡内部可溶层的可溶性及其制备方法公开(公告)号：US20100154701A1
公开(公告)日：2010-06-24
申请号：US12370517
申请日：2009-02-12
CPC分类号： C03B19/095 , Y10T117/1032
摘要： A method of making a silica crucible in a mold cavity of the type in which air is drawing through silica grain placed in the mold cavity. A pure silica grain layer is formed on top of a natural silica grain layer. At least a portion of the purse silica grain layer is fused while substantially no air is drawn through the silica grain. Any remaining pure silica grain and a least a portion of the natural silica grain layer is fused while drawing a substantially higher volume of air through the silica. At least a portion of the fused pure silica grain layer is then sublimated.
摘要翻译： 一种将二氧化硅坩埚制成在通过置于模腔中的二氧化硅颗粒吸入空气的类型的模腔中的方法。 在天然二氧化硅颗粒层的顶部形成纯二氧化硅颗粒层。 将二氧化硅颗粒层的至少一部分熔融，而基本上没有空气通过二氧化硅颗粒。 任何剩余的纯二氧化硅颗粒和至少一部分天然二氧化硅颗粒层在通过二氧化硅吸收大体积的空气的同时被熔化。 然后将熔融的纯二氧化硅颗粒层的至少一部分升华。
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公开(公告)号：US20070051297A1
公开(公告)日：2007-03-08
申请号：US11536517
申请日：2006-09-28
申请人： Katsuhiko Kemmochi , Yasuo Ohama
发明人： Katsuhiko Kemmochi , Yasuo Ohama
CPC分类号： C03B19/095 , C30B15/10 , Y10S65/08 , Y10T117/10 , Y10T117/1068
摘要： A silica glass crucible includes a thin barium-doped inner layer, a stable, bubble-free intermediate layer, and a stable opaque outer layer. The fusion process of the present invention controls the dynamic gas balance at the fusion front where formed grain is melted to dense fused silica. The crucible demonstrates reduced bubble growth during a Czochralski process. As a result of the thin barium-doped layer and the reduced bubble growth, the inner surface of the crucible is uniformly minimally textured during a CZ process. The present crucible is especially suited for intense CZ processes for manufacturing silicon ingots used for solar cells or with silicon that is heavily doped with antimony, boron, or arsenic.
摘要翻译： 石英玻璃坩埚包括薄的钡掺杂内层，稳定的无气泡中间层和稳定的不透明外层。 本发明的融合方法控制熔融前沿处的动态气体平衡，其中形成的晶粒被熔化成致密的熔融二氧化硅。 坩埚在切克劳斯基（Czochralski）工艺中表现出减少的气泡生长。 由于薄的钡掺杂层和减少的气泡生长，坩埚的内表面在CZ工艺期间均匀地最小化。 本坩埚特别适用于制造用于太阳能电池的硅锭或重掺杂锑，硼或砷的硅的强CZ工艺。
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公开(公告)号：US20140352605A1
公开(公告)日：2014-12-04
申请号：US14012795
申请日：2013-08-28
CPC分类号： C30B15/10 , C30B15/002 , C30B29/06 , Y10T117/1032
摘要： Making a barium-doped silica crucible includes forming a crucible by introducing into a rotating crucible mold bulk silica grains to form a bulky wall. After heating the interior of the mold to fuse the bulk silica grains, an inner silica grain, doped with barium, is introduced into the crucible. Residual heat or additional heat at least partially melts the inner silica grain, allowing the barium-doped silica layer to fuse to the wall of the crucible to form a glossy inner layer. Next, at least a part of the barium-doped silica layer is roughened. Also described are the crucible made thereby as well as silicon ingots made using the crucibles as described herein.
摘要翻译： 制造掺杂钡的二氧化硅坩埚包括通过引入旋转的坩埚模块体二氧化硅颗粒中形成坩埚以形成大的壁。 在加热模具内部以熔化体二氧化硅颗粒之后，将掺杂有钡的内部二氧化硅颗粒引入坩埚中。 剩余热量或额外的热量至少部分地熔化内部二氧化硅颗粒，允许掺杂钡的二氧化硅层与坩埚的壁融合以形成光滑的内层。 接下来，至少部分掺杂钡的二氧化硅层被粗糙化。 还描述了由此制成的坩埚以及使用本文所述的坩埚制成的硅锭。
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4.发明授权公开(公告)号：US08496752B2
公开(公告)日：2013-07-30
申请号：US12552960
申请日：2009-09-02
IPC分类号： C30B15/02
CPC分类号： C30B15/10 , C30B35/002 , Y10T117/1052 , Y10T117/106 , Y10T117/1068
摘要： During a CZ or similar process, a silica crucible is held in a graphite or similar susceptor while being heated to above between about 1580 and 1620 degrees C. Vents or grooves formed in at least one of the outer surface of the crucible and the inner surface of the susceptor permit gasses to vent upwardly and out from between the crucible and susceptor. This permits gas evolved from the crucible as a result of the heat to be vented rather than expanding between the crucible and susceptor thereby deforming the crucible.
摘要翻译： 在CZ或类似的过程中，将石英坩埚保持在石墨或类似的基座中，同时被加热到大约在1580和1620摄氏度之间。形成在坩埚的外表面和内表面中的至少一个中的通风口 的基座允许气体从坩埚和基座之间向上排出。 这允许通过排出热量而不是在坩埚和基座之间膨胀从坩埚中逸出的气体，从而使坩埚变形。
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5.发明授权公开(公告)号：US08361228B2
公开(公告)日：2013-01-29
申请号：US12752998
申请日：2010-04-01
申请人： Katsuhiko Kemmochi , Yasuo Ohama
发明人： Katsuhiko Kemmochi , Yasuo Ohama
IPC分类号： C30B35/00
CPC分类号： C03B19/095 , C03B2201/32 , C30B15/10 , C30B29/06 , Y10T117/10 , Y10T117/1032 , Y10T117/1052 , Y10T117/1072
摘要： A fused glass crucible includes a collar of doped aluminum silica that defines uppermost and outermost surfaces of the crucible. The melt line that defines the surface of molten silicon in the crucible may be substantially at the lower end of the collar or slightly above it. Crystallization of the collar makes it hard and therefore supports the remaining uncrystallized portion of the crucible above the melt line. The melt line may also be below the lower end of the collar, especially if the melt is drawn down or poured early in the process. Because there is little or no overlap or because the overlap does not last long, the doped aluminum collar is not damaged by the heat of from the melt.
摘要翻译： 熔融玻璃坩埚包括限定坩埚的最上表面和最外表面的掺杂铝二氧化硅的环。 限定坩埚中的熔融硅表面的熔体线可以基本上在套环的下端或略高于其上。 轴环的结晶使其变硬，因此支撑坩埚在熔融线之上的剩余未结晶部分。 熔体管线也可以在套环的下端下方，特别是如果熔体在该过程中被提拉或者早期浇注。 因为很少或没有重叠，或者由于重叠不会持续很长时间，所以掺杂的铝合金套环不会被熔体的热量损坏。
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公开(公告)号：US07993556B2
公开(公告)日：2011-08-09
申请号：US11835568
申请日：2007-08-08
申请人： Katsuhiko Kemmochi , Yasuo Ohama
发明人： Katsuhiko Kemmochi , Yasuo Ohama
IPC分类号： B29D22/00
CPC分类号： C03B19/095 , Y10T428/131
摘要： A rotating mold has a plurality of air channels that communicate with a cavity formed in the mold. Silica grain is deposited in the rotating mold and then formed into the shape of a crucible having a lower portion that comprises a substantially uniformly thick wall. An upper portion of the grain is formed into a substantially narrowed wall portion about the perimeter of the formed shape. The silica grain is heated, and a pump draws gas through the air channels while the silica fuses. There is a pressure drop across the narrowed wall portion. After fusing, the upper portion of the crucible, including the narrowed wall portion, is cut off.
摘要翻译： 旋转模具具有与模具中形成的空腔连通的多个空气通道。 将二氧化硅颗粒沉积在旋转模具中，然后形成具有包括基本上均匀厚壁的下部的坩埚形状。 颗粒的上部形成为围绕成形形状的周边的基本上变窄的壁部分。 二氧化硅颗粒被加热，并且泵在二氧化硅保险丝下通过空气通道吸入气体。 在狭窄的壁部分上存在压降。 在熔化之后，坩埚的上部包括变窄的壁部被切断。
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7.发明申请公开(公告)号：US20110048315A1
公开(公告)日：2011-03-03
申请号：US12552960
申请日：2009-09-02
CPC分类号： C30B15/10 , C30B35/002 , Y10T117/1052 , Y10T117/106 , Y10T117/1068
摘要： During a CZ or similar process, a silica crucible is held in a graphite or similar susceptor while being heated to above between about 1580 and 1620 degrees C. Vents or grooves formed in at least one of the outer surface of the crucible and the inner surface of the susceptor permit gasses to vent upwardly and out from between the crucible and susceptor. This permits gas evolved from the crucible as a result of the heat to be vented rather than expanding between the crucible and susceptor thereby deforming the crucible.
摘要翻译： 在CZ或类似的过程中，将石英坩埚保持在石墨或类似的基座中，同时被加热到大约在1580和1620摄氏度之间。形成在坩埚的外表面和内表面中的至少一个中的通风口 的基座允许气体从坩埚和基座之间向上排出。 这允许通过排出热量而不是在坩埚和基座之间膨胀从坩埚中逸出的气体，从而使坩埚变形。
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8.发明授权公开(公告)号：US07716948B2
公开(公告)日：2010-05-18
申请号：US11612327
申请日：2006-12-18
申请人： Katsuhiko Kemmochi , Yasuo Ohama
发明人： Katsuhiko Kemmochi , Yasuo Ohama
CPC分类号： C03B19/095 , C03B2201/32 , C30B15/10 , C30B29/06 , Y10T117/10 , Y10T117/1032 , Y10T117/1052 , Y10T117/1072
摘要： A fused glass crucible includes a collar of doped aluminum silica that defines uppermost and outermost surfaces of the crucible. The melt line that defines the surface of molten silicon in the crucible may be substantially at the lower end of the collar or slightly above it. Crystallization of the collar makes it hard and therefore supports the remaining uncrystallized portion of the crucible above the melt line. The melt line may also be below the lower end of the collar, especially if the melt is drawn down or poured early in the process. Because there is little or no overlap or because the overlap does not last long, the doped aluminum collar is not damaged by the heat of from the melt.
摘要翻译： 熔融玻璃坩埚包括限定坩埚的最上表面和最外表面的掺杂铝二氧化硅的环。 限定坩埚中的熔融硅表面的熔体线可以基本上在套环的下端或略高于其上。 轴环的结晶使其变硬，因此支撑坩埚在熔融线之上的剩余未结晶部分。 熔体管线也可以在套环的下端下方，特别是如果熔体在该过程中被提拉或者早期浇注。 因为很少或没有重叠，或者由于重叠不会持续很长时间，所以掺杂的铝合金套环不会被熔体的热量损坏。
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公开(公告)号：US07556764B2
公开(公告)日：2009-07-07
申请号：US11271491
申请日：2005-11-09
申请人： Katsuhiko Kemmochi , Yasuo Ohama
发明人： Katsuhiko Kemmochi , Yasuo Ohama
IPC分类号： B28B1/02
CPC分类号： C03B19/095 , C30B11/002 , C30B15/10
摘要： A fused silica crucible having a nozzle is formed by first inserting a preformed silica glass tube into the lower portion of a graphite mold. The tube is aligned with a vertical axis about which the mold is rotated while silica grain is poured into the mold and shaped in the form of the crucible. A graphite plug inserted into the top of the tube keeps the grain out of the tube. Electrodes create a plasma gas ball that fuses the grain and forms it to the tube. Although the graphite plug is covered with grain, the molten silica recedes from the top of the plug during fusion thus forming the nozzle to the crucible.
摘要翻译： 通过首先将预制的石英玻璃管插入石墨模具的下部来形成具有喷嘴的熔融石英坩埚。 管与垂直轴对准，模具旋转在该垂直轴上，同时将二氧化硅颗粒倒入模具中并以坩埚的形式成形。 插入管的顶部的石墨塞将颗粒保持在管外。 电极产生等离子体气球，其熔化晶粒并将其形成管。 虽然石墨塞被谷物覆盖，但在熔化期间，熔融二氧化硅从塞子的顶部后退，从而将该喷嘴形成坩埚。
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公开(公告)号：US20090041960A1
公开(公告)日：2009-02-12
申请号：US11835568
申请日：2007-08-08
申请人： Katsuhiko Kemmochi , Yasuo Ohama
发明人： Katsuhiko Kemmochi , Yasuo Ohama
CPC分类号： C03B19/095 , Y10T428/131
摘要： A rotating mold has a plurality of air channels that communicate with a cavity formed in the mold. Silica grain is deposited in the rotating mold and then formed into the shape of a crucible having a lower portion that comprises a substantially uniformly thick wall. An upper portion of the grain is formed into a substantially narrowed wall portion about the perimeter of the formed shape. The silica grain is heated, and a pump draws gas through the air channels while the silica fuses. There is a pressure drop across the narrowed wall portion. After fusing, the upper portion of the crucible, including the narrowed wall portion, is cut off.
摘要翻译： 旋转模具具有与模具中形成的空腔连通的多个空气通道。 将二氧化硅颗粒沉积在旋转模具中，然后形成具有包括基本均匀厚壁的下部的坩埚形状。 颗粒的上部形成为围绕成形形状的周边的基本上变窄的壁部分。 二氧化硅颗粒被加热，并且泵在二氧化硅保险丝下通过空气通道吸入气体。 在狭窄的壁部分上存在压降。 在熔化之后，坩埚的上部包括变窄的壁部被切断。
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