发明名称 Dynamic random access memory having improved layout and method of arranging memory cell pattern.
摘要 <p>A dynamic random access memory includes a semiconductor substrate (1) having an active region (AR) including first and second diffusion regions (D, S) of a transfer transistor, an insulating layer (2, 3) formed on the semiconductor substrate and having first and second contact holes (SH, BH), and a stacked capacitor (SC) having a storage electrode (SE) which is electrically coupled to the first diffusion region through the first contact hole formed in the insulating layer and an opposed electrode (CP). The DRAM also includes a word line (WL) electrically isolated from the semiconductor substrate, and a bit line (BL) electrically isolated from the semiconductor substrate and electrically coupled to the second diffusion region through the second contact hole formed in the insulating layer. The second contact hole is substantially positioned at a center (CL) of the bit line. The word line has a bent portion (Z, Z') located between the first and second contact holes so that the word line is separated from the second contact hole at a predetermined distance. &lt;IMAGE&gt;</p>
申请公布号 EP0464251(A1) 申请公布日期 1992.01.08
申请号 EP19900112927 申请日期 1990.07.06
申请人 FUJITSU LIMITED 发明人 EMA, TAIJI
分类号 H01L27/108 主分类号 H01L27/108
代理机构 代理人
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