发明名称 METHOD OF FABRICATING NON-VOLATILE MEMORY DEVICE HAVING CHARGE TRAPPING LAYER
摘要 A method of fabricating a non-volatile memory device having a charge trapping layer includes forming a tunneling layer, a charge trapping layer, a blocking layer and a control gate electrode layer over a substrate, forming a mask layer pattern on the control gate electrode layer, performing an etching process using the mask layer pattern as an etching mask to remove an exposed portion of the control gate electrode layer, wherein the etching process is performed as excessive etching to remove the charge trapping layer by a specified thickness, forming an insulating layer for blocking charges from moving on the control gate electrode layer and the mask layer pattern, performing anisotropic etching on the insulating layer to form an insulating layer pattern on a sidewall of the control gate electrode layer and a partial upper sidewall of the blocking layer, and performing an etching process on the blocking layer exposed by the anisotropic etching, wherein the etching process is performed as excessive etching to remove the charge trapping layer by a specified thickness.
申请公布号 US2009004802(A1) 申请公布日期 2009.01.01
申请号 US20070966231 申请日期 2007.12.28
申请人 JOO MOON SIG;PYI SEUNG HO;PARK KI SEON;CHO HEUNG JAE;KIM YONG TOP 发明人 JOO MOON SIG;PYI SEUNG HO;PARK KI SEON;CHO HEUNG JAE;KIM YONG TOP
分类号 H01L21/336 主分类号 H01L21/336
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