公开(公告)号：US20150225246A1

公开(公告)日：2015-08-13

申请号：US14178103

申请日：2014-02-11

申请人： REC Silicon Inc

发明人： Sefa Yilmaz ,  Theodore F. Ciszek ,  Matthew J. Miller ,  Stein Julsrud

IPC分类号： C01B33/021 ,  G01N21/3563

CPC分类号： C01B33/021 ,  C01B32/384 ,  C01B33/02 ,  C01B33/035 ,  C01B33/037 ,  G01N21/3563 ,  G01N2021/3595

摘要： Apparatus and methods for consolidating granular silicon and determining trace elements content of the consolidated silicon are disclosed. Silicon granules are placed in a vessel, and a silicon slug of known purity is embedded at least partially in the granules. The slug is preheated to a temperature sufficient to couple with an induction heater. As the silicon slug melts, silicon granules adjacent the molten silicon also melt. The vessel passes through an induction coil to successively inductively heat and melt regions of the silicon granules from the leading end to the trailing end with each region solidifying as the molten silicon exits the induction coil to provide a multicrystalline silicon ingot. The multicrystalline silicon ingot is sliced into wafers, which are analyzed by low-temperature Fourier transform infrared spectroscopy to determine levels of trace elements in the ingot.

摘要翻译： 公开了用于固结颗粒状硅并确定固结硅的微量元素含量的装置和方法。 将硅颗粒放置在容器中，并且将至少部分地嵌入颗粒中的已知纯度的硅团块。 将坯料预热到足以与感应加热器相连的温度。 当硅团熔化时，与熔融硅相邻的硅颗粒也会熔化。 容器通过感应线圈，以随着熔融硅离开感应线圈而使硅颗粒的前端到后端逐渐地感应加热和熔融，每个区域都固化，从而提供多晶硅锭。 将多晶硅锭切成晶片，通过低温傅里叶变换红外光谱法分析晶锭中微量元素的含量。

公开(公告)号：US09580327B2

公开(公告)日：2017-02-28

申请号：US14178103

申请日：2014-02-11

申请人： REC Silicon Inc

发明人： Sefa Yilmaz ,  Theodore F. Ciszek ,  Matthew J. Miller ,  Stein Julsrud

IPC分类号： C01B33/021 ,  G01N21/3563 ,  C01B33/037 ,  C01B33/02 ,  C01B33/035 ,  C01B31/14 ,  G01N21/35

CPC分类号： C01B33/021 ,  C01B32/384 ,  C01B33/02 ,  C01B33/035 ,  C01B33/037 ,  G01N21/3563 ,  G01N2021/3595

摘要： Apparatus and methods for consolidating granular silicon and determining trace elements content of the consolidated silicon are disclosed. Silicon granules are placed in a vessel, and a silicon slug of known purity is embedded at least partially in the granules. The slug is preheated to a temperature sufficient to couple with an induction heater. As the silicon slug melts, silicon granules adjacent the molten silicon also melt. The vessel passes through an induction coil to successively inductively heat and melt regions of the silicon granules from the leading end to the trailing end with each region solidifying as the molten silicon exits the induction coil to provide a multicrystalline silicon ingot. The multicrystalline silicon ingot is sliced into wafers, which are analyzed by low-temperature Fourier transform infrared spectroscopy to determine levels of trace elements in the ingot.

摘要翻译： 公开了用于固结颗粒状硅并确定固结硅的微量元素含量的装置和方法。 将硅颗粒放置在容器中，并且将至少部分地嵌入颗粒中的已知纯度的硅团块。 将坯料预热到足以与感应加热器相连的温度。 当硅团熔化时，与熔融硅相邻的硅颗粒也会熔化。 容器通过感应线圈，以随着熔融硅离开感应线圈而使硅颗粒的前端到后端逐渐地感应加热和熔融，每个区域都固化，从而提供多晶硅锭。 将多晶硅锭切成晶片，通过低温傅里叶变换红外光谱法分析晶锭中微量元素的含量。