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公开(公告)号:US07309632B1
公开(公告)日:2007-12-18
申请号:US11735440
申请日:2007-04-14
申请人: Wei-Bo Lu , Dah-Chuan Chen
发明人: Wei-Bo Lu , Dah-Chuan Chen
IPC分类号: H01L21/8247
CPC分类号: H01L27/115 , H01L27/11517 , H01L27/11521
摘要: A method of fabricating a nonvolatile memory cell includes providing a substrate with a trench, with a sidewall where a tunnel oxide layer and a floating gate are successively formed, forming a control gate in the trench, performing a high density plasma deposition process to form an HDP oxide layer on the top surface of control gate.
摘要翻译: 一种制造非易失性存储单元的方法包括提供具有沟槽的衬底,其中连续形成隧道氧化物层和浮栅的侧壁,在沟槽中形成控制栅极,执行高密度等离子体沉积工艺以形成 HDP氧化层在控制门的顶面。