发明名称 DEVICE AND METHOD FOR GROWING SEMICONDUCTOR CRYSTAL
摘要 PROBLEM TO BE SOLVED: To provide a method for growing a semiconductor single crystal by Czochralski technique through application of both magnetic field and electric current, designed to uniformly distribute the impurity concentration of the single crystal grown in its pull-up direction. SOLUTION: This method for growing a semiconductor single crystal by Czochralski technique through application of both magnetic field and electric current comprises changing electric current value as the single crystal is pulled up under a fixed magnetic field intensity, or changing applied magnetic field intensity as the single crystal is pulled up under a fixed electric current value, or changing both electric current value and magnetic field intensity as the single crystal is pulled up.
申请公布号 JP2000063195(A) 申请公布日期 2000.02.29
申请号 JP19980231545 申请日期 1998.08.18
申请人 NEC CORP 发明人 WATANABE MASATO;EGUCHI MINORU
分类号 C30B15/20;C30B15/00;C30B29/06;C30B30/04;(IPC1-7):C30B15/20 主分类号 C30B15/20
代理机构 代理人
主权项
地址