发明名称 Contact formation
摘要 An improved process for forming a contact on a top electrode of a capacitor is described. The process includes forming an encapsulation layer on at least the top electrode of the capacitor. When the contact hole is etched, the encapsulation layer is not removed. After the contact hole is formed, the resist mask is removed. Since the encapsulation layer remains on the top electrode, the capacitor is protected from hydrogen resulting from the decomposition of the resist material.
申请公布号 US2003224536(A1) 申请公布日期 2003.12.04
申请号 US20020161863 申请日期 2002.06.04
申请人 HILLIGER ANDREAS;BRUCHHAUS RAINER 发明人 HILLIGER ANDREAS;BRUCHHAUS RAINER
分类号 H01L21/02;H01L21/8246;(IPC1-7):H01L21/00 主分类号 H01L21/02
代理机构 代理人
主权项
地址