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公开(公告)号:US08829644B2
公开(公告)日:2014-09-09
申请号:US14072250
申请日:2013-11-05
发明人: Jae-Hwang Sim , Keon-Soo Kim , Kyung-Hoon Min , Min-Sung Song , Yeon-Wook Jung
IPC分类号: H01L21/70 , H01L29/788 , H01L27/115 , H01L21/28 , H01L29/66
CPC分类号: H01L29/788 , H01L21/28273 , H01L27/11521 , H01L29/66825 , H01L29/7881
摘要: In a non-volatile memory device and method of manufacturing the same, a device isolation pattern and an active region extend in a first direction on a substrate. A first dielectric pattern is formed on the active region of the substrate. Conductive stack structures are arranged on the first dielectric pattern and a recess is formed between a pair of the adjacent conductive stack structures. A protection layer is formed on a sidewall of the stack structure to protect the sidewall of the stack structure from over-etching along the first direction. The protection layer includes an etch-proof layer having oxide and arranged on a sidewall of the floating gate electrode and a sidewall of the control gate line and a spacer layer covering the sidewall of the conductive stack structures.
摘要翻译: 在非易失性存储器件及其制造方法中,器件隔离图案和有源区域在衬底上沿第一方向延伸。 在基板的有源区上形成第一电介质图案。 导电堆叠结构布置在第一电介质图案上,并且在一对相邻的导电堆叠结构之间形成凹部。 保护层形成在堆叠结构的侧壁上,以保护堆叠结构的侧壁不沿着第一方向过度蚀刻。 保护层包括具有氧化物并设置在浮栅电极的侧壁上的防蚀层和控制栅极线的侧壁以及覆盖导电堆叠结构侧壁的间隔层。