发明名称 METHOD OF MANUFACTURING EPITAXIAL WAFER, AND EPITAXIAL WAFER
摘要 PROBLEM TO BE SOLVED: To provide a method of manufacturing an epitaxial wafer from which a dislocation is removed, which can be reduced in LPD and haze, and of which the main surface is ä110}. SOLUTION: In the method of manufacturing an epitaxial silicon wafer, a single crystal without dislocation added with 5×10<SP>18</SP>atoms/cm<SP>3</SP>or more of boron as a seed crystal is immersed in a silicon melt, a grown crystal having a boron concentration the same as the boron concentration of the seed crystal is pulled up taking the <110> direction of the single crystal without dislocation as axis to form a single crystal silicon ingot, silicon single crystal substrates are cut out by slicing the single crystal silicon ingot, and an epitaxial layer is formed in the silicon single crystal substrate. COPYRIGHT: (C)2007,JPO&INPIT
申请公布号 JP2007070131(A) 申请公布日期 2007.03.22
申请号 JP20050256084 申请日期 2005.09.05
申请人 SUMCO CORP 发明人 INAMI SHUICHI;MIYAMOTO ISAMU;KURAGAKI SHUNJI;MIKI SHINICHIRO;INOUE KUNIHARU;DOI ATSUYUKI;NAKAHARA SHINJI;YANASE YOSHIO
分类号 C30B29/06;C23C16/24 主分类号 C30B29/06
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