发明名称 Semiconductor memory device having self-aligned contacts and method of fabricating the same
摘要 A semiconductor memory device having self-aligned contacts, capable of preventing a short-circuit between contacts for bit lines and contacts for storage electrodes and improving a process margin, and a method of fabricating the same are provided. The semiconductor memory device having self-aligned contacts includes a plurality of gate electrode patterns arranged in parallel on a semiconductor substrate, in which a plurality of first spacers are formed along the sidewalls of the gate electrode patterns, a first interdielectric layer formed on the entire surface of a resultant in which the first spacers are formed, a plurality of bit line patterns arranged in parallel on the first interdielectric layer to be perpendicular to the gate electrode patterns, in which a plurality of second spacers are formed along the sidewalls of the bit line patterns, a plurality of contacts for bit lines self-aligned with the first spacers, a second interdielectric layer formed on the entire surface of a resultant in which the second spacers are formed, and a plurality of contacts for storage electrodes simultaneously self-aligned with the second and first spacers.
申请公布号 US2005167758(A1) 申请公布日期 2005.08.04
申请号 US20050054593 申请日期 2005.02.09
申请人 AHN TAE-HYUK;KIM MYEONG-CHEOL;LEE JUNG-HYEON;NAM BYEONG-YUN;MIN GYUNG-JIN 发明人 AHN TAE-HYUK;KIM MYEONG-CHEOL;LEE JUNG-HYEON;NAM BYEONG-YUN;MIN GYUNG-JIN
分类号 H01L27/10;H01L21/60;H01L21/8242;H01L27/108;(IPC1-7):H01L21/824;H01L31/113 主分类号 H01L27/10
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