发明名称 Sacrificial nitride and gate replacement
摘要 Methods of forming a top oxide around a charge storage material layer of a memory cell and methods of improving quality of a top oxide around a charge storage material layer of a memory cell are provided. The method can involve providing a charge storage layer on a semiconductor substrate, a nitride layer on the charge storage layer, and a first poly layer on the nitride layer, and converting at least a portion of the nitride layer to a top oxide. By converting at least a portion of a nitride layer to a top oxide layer, the quality of the resultant top oxide layer can be improved.
申请公布号 US8329598(B2) 申请公布日期 2012.12.11
申请号 US201113153558 申请日期 2011.06.06
申请人 LEE CHUNGHO;CHANG KUO-TUNG;KINOSHITA HIROYUKI;WU HUAQIANG;CHEUNG FRED;SPANSION LLC 发明人 LEE CHUNGHO;CHANG KUO-TUNG;KINOSHITA HIROYUKI;WU HUAQIANG;CHEUNG FRED
分类号 H01L21/31;H01L21/469 主分类号 H01L21/31
代理机构 代理人
主权项
地址
您可能感兴趣的专利