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发明名称
用于改善浅沟隔离结构角部圆角化之浅沟隔离法
摘要
本发明揭示一种于半导体制造期间施行浅沟隔离以改善沟渠之角部圆角化之方法。本方法包括蚀刻沟渠(34)进入矽基板(24)作用区(30)之间,并于该沟渠(34)上施行双重衬底氧化处理(56)和(60)。本方法进一步包括于该作用区(30)上施行双重牺牲氧化处理(72)和(76),其中各沟渠(34)之角部(35)由此四个氧化处理而实质上形成圆角化。
申请公布号
TW200303596
申请公布日期
2003.09.01
申请号
TW091136617
申请日期
2002.12.19
申请人
高级微装置公司
发明人
金恩顺;孙禹;木下博元;张国栋;哈帕瑞 沙奇;张绍尊
分类号
H01L21/76
主分类号
H01L21/76
代理机构
代理人
洪武雄;陈昭诚
主权项
地址
美国
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