发明名称 METHOD FOR FABRICATING SEMICONDUCTOR MEMORY
摘要 PROBLEM TO BE SOLVED: To provide a method for fabricating a highly reliable semiconductor storage device in which a resist layer does not become thin at the end of a memory cell array and the overetch margin is enlarged. SOLUTION: In the method for fabricating a dynamic random access memory having a data storage capacitor structure and a data transfer gate, a dummy gate member 13 wider than the transfer gate 12 is formed together with the transfer gate 12 contiguously to the end of an array of the transfer gate 12 prior to a step for forming the capacitor structure 16 on the transfer gate 12 through an interlayer dielectric. When an insulation film 17 is formed following to formation of the capacitor structure 16, level difference of the insulation film 17 is relaxed at the end of an array of the transfer gate 12 and a resist layer formed thereon does not become thin.
申请公布号 JP2001177077(A) 申请公布日期 2001.06.29
申请号 JP19990359133 申请日期 1999.12.17
申请人 SEIKO EPSON CORP 发明人 SUGAWARA TAKUMI
分类号 H01L21/8242;H01L27/108 主分类号 H01L21/8242
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