发明名称 FOCUSING ERROR REDUCTION METHOD IN EXPOSURE PROCESS FOR SEMICONDUCTOR DEVICE
摘要 PROBLEM TO BE SOLVED: To provide a method of reducing focusing errors in an exposure process for a semiconductor device. SOLUTION: A method of reducing focusing errors in an exposure process of a semiconductor device comprises a first step, where a wafer 102 which contains semiconductor integrated circuit chips that include one or more layers respectively is provided, a second step where a conductive film 122 that is kept in ohmic contact with a peripheral region, where semiconductor integrated circuit chips are not provided is provided to the wafer, and a third step where the topology of the wafer is measured with a capacitance gate tracking device, before an exposure process is carried out.
申请公布号 JP2000036454(A) 申请公布日期 2000.02.02
申请号 JP19990157100 申请日期 1999.06.03
申请人 SAMSUNG ELECTRONICS CO LTD 发明人 KO SHINSEKI;RI JUHYUN;KYO KOEI
分类号 H01L21/027;H01L21/66;H01L21/8242;(IPC1-7):H01L21/027;G03F9/02 主分类号 H01L21/027
代理机构 代理人
主权项
地址