发明名称 SEMICONDUCTOR MEMORY
摘要 PURPOSE:To eliminate an interference in the layout between bit lines and to reduce the pitch between the bit lines by a method wherein the main parts of active regions are prevented from becoming parallel even with either of word lines and the bit lines, which intersect orthogonally each other. CONSTITUTION:Active regions 1.1 are arranged in such a way as to form 45 degrees to word lines 1.2 and bit lines 1.4 and parts only, at which contact holes 1.5 of a memory part are opened, of the regions 1.1 are arranged in parallel to the bit lines 1.4. Moreover, the active regions are arranged in such a way that their main parts intersect orthogonally 4 active regions 1.1 adjacent to the active regions 1.1. When a lattice is made of the lines 1.2 and the lines 1.4 in such a way, a pair of diffused layers at the regions 1.1 expose their surfaces on valleys which are made of the lines 1.2 and 1.4. lower electrodes 1, 6, 5 and 9 of a storage capacitor part are formed on these layers and after these electrodes are processed, a capacitor insulating film 5.10 is formed, a plate electrode 5.11 is formed thereon and an Al wiring is wired on this electrode 5.11 through an interlayer insulating film 5.12.
申请公布号 JPH01179449(A) 申请公布日期 1989.07.17
申请号 JP19880001213 申请日期 1988.01.08
申请人 HITACHI LTD 发明人 KIMURA SHINICHIRO;HASHIMOTO NAOTAKA;SAKAI YOSHIO;KURE TOKUO;KAWAMOTO YOSHIFUMI
分类号 H01L27/04;H01L21/822;H01L21/8242;H01L27/10;H01L27/108 主分类号 H01L27/04
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