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公开(公告)号:US20050130420A1
公开(公告)日:2005-06-16
申请号:US10731150
申请日:2003-12-10
申请人: Chih Huang , Cheng Chen , Ling-Wuu Yang
发明人: Chih Huang , Cheng Chen , Ling-Wuu Yang
IPC分类号: H01L21/28 , H01L21/302 , H01L21/306 , H01L21/3213 , H01L21/461
CPC分类号: H01L21/32138 , H01L21/02052 , H01L29/40114 , H01L29/40117
摘要: A semiconductor cleaning method, including providing a semiconductor wafer, forming a first layer of oxide over the semiconductor wafer, forming a floating gate layer over the first layer of oxide, forming a second layer of oxide over the floating gate layer, etching the first layer of oxide, the floating gate layer, and the second layer of oxide to form a gate structure, cleaning the semiconductor wafer including the gate structure using an ozonated de-ionized (DI) water, further cleaning of the ozonated water-cleaned semiconductor wafer using a first cleaning solution, and additional cleaning of the further cleaned semiconductor wafer using a second cleaning solution.
摘要翻译: 一种半导体清洁方法,包括提供半导体晶片,在所述半导体晶片上形成第一氧化物层,在所述第一氧化物层上形成浮栅,在所述浮栅上形成第二氧化层,蚀刻所述第一层 的氧化物,浮栅和第二层氧化物以形成栅极结构,使用臭氧化去离子水(DI)水清洗包括栅极结构的半导体晶片,使用以下方法进一步清洁臭氧水清洗的半导体晶片: 第一清洁溶液,以及使用第二清洁溶液对进一步清洁的半导体晶片的附加清洁。