公开(公告)号：US20150166351A1

公开(公告)日：2015-06-18

申请号：US14633312

申请日：2015-02-27

Applicant: Wacker Chemie AG

Inventor： Martin WEBER ,  Erich DORNBERGER ,  Michael KERSCHER ,  Heinz KRAUS ,  Reiner PECH

IPC: C01B33/029 ,  C23C16/44 ,  C23C16/24 ,  C30B28/14 ,  C30B29/06

CPC classification number: C01B33/029 ,  B02C19/0056 ,  C01B33/02 ,  C01B33/035 ,  C23C16/24 ,  C23C16/4418 ,  C30B28/14 ,  C30B29/06 ,  Y10T428/12479

Abstract: The invention provides a polycrystalline silicon rod having a total diameter of at least 150 mm, including a core A having a porosity of 0 to less than 0.01 around a thin rod, and at least two subsequent regions B and C which differ in porosity by a factor of 1.7 to 23, the outer region C being less porous than region B.

Abstract translation: 本发明提供一种总直径至少为150mm的多晶硅棒，包括在细棒周围具有0至小于0.01的孔隙率的芯A和至少两个随后的区域B和C，其中孔隙率不同于 因子为1.7〜23，外部区域C比区域B多孔。

公开(公告)号：US20130295408A1

公开(公告)日：2013-11-07

申请号：US13886439

申请日：2013-05-03

Applicant: WACKER CHEMIE AG

Inventor： Martin WEBER ,  Erich DORNBERGER ,  Michael KERSCHER ,  Heinz KRAUS ,  Reiner PECH

IPC: C01B33/02 ,  C23C16/24

CPC classification number: C01B33/029 ,  B02C19/0056 ,  C01B33/02 ,  C01B33/035 ,  C23C16/24 ,  C23C16/4418 ,  C30B28/14 ,  C30B29/06 ,  Y10T428/12479

Abstract: The invention provides a polycrystalline silicon rod having a total diameter of at least 150 mm, including a core A having a porosity of 0 to less than 0.01 around a thin rod, and at least two subsequent regions B and C which differ in porosity by a factor of 1.7 to 23, the outer region C being less porous than region B.