会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 2. 发明授权
    • Method for evaluating metal contamination of silicon single crystal
    • 评估硅单晶金属污染的方法
    • US08801854B2
    • 2014-08-12
    • US13913732
    • 2013-06-10
    • Shunji Kuragaki
    • Shunji Kuragaki
    • C30B11/00C30B15/00C30B21/06C30B27/02C30B28/10C30B30/04
    • C30B15/20C30B29/06
    • A method for evaluating metal contamination of a silicon single crystal grown by the Czochralski method using a pulling apparatus in which a voltage can be applied between a crystal suspending member and a crucible comprises the steps of: setting the crystal suspending member as a negative electrode while setting the crucible as a positive electrode in a process for growing a non-convertible portion of the silicon single crystal; applying the voltage; collecting a sample from the non-convertible portion grown in association with the voltage application; and evaluating the metal contamination of the sample by an analysis in which Surface Photo Voltage method is adopted. In a process for growing an end-product convertible portion of the silicon single crystal, the voltage is applied such that the crystal suspending member is set as the positive electrode while the crucible is set as the negative electrode, or the voltage is not applied.
    • 一种用于通过使用可在晶体悬挂构件和坩埚之间施加电压的拉制装置的切克劳斯基法生长的单晶硅的金属污染物的方法包括以下步骤:将晶体悬挂构件设置为负极,同时 在用于生长硅单晶的不可转换部分的工艺中将坩埚设置为正极; 施加电压; 从与电压施加相关联地生长的不可转换部分收集样品; 并通过采用表面光电压法的分析来评估样品的金属污染。 在生长硅单晶的最终产品可转换部分的过程中,施加电压,使得将晶体悬挂构件设定为正极,同时将坩埚设定为负极,或施加电压。