发明名称 Semiconductor memory device capable of realizing a minimum memory cell area approximate to a theoretical value
摘要 In semiconductor memory device, word lines (2a) are arranged in parallel to each other on a semiconductor substrate (9). Each of the device active regions (1) has first oblique intersection portions (1a) which obliquely intersect adjacent two of the word lines (2a) in first oblique directions with a distance left between each of the device active regions (1) and the adjacent two of the word lines (2a). Each of bit lines (4) has second oblique intersection portions (4a) which obliquely intersect the adjacent two of the word lines (4) in second oblique directions reverse with respect to the first oblique directions with another distance left between each of the bit lines (4) and the adjacent two of the word lines (2a). The first oblique directions of the first oblique intersection portions (1a) of each of the device active regions (1) are reversed at every memory cell (or at every two memory cells). The second oblique directions of the second oblique intersection portions (4a) of each of the bit lines (4) are reversed at every memory cell (or at every two memory cells).
申请公布号 US5838036(A) 申请公布日期 1998.11.17
申请号 US19960746440 申请日期 1996.11.08
申请人 NEC CORPORATION 发明人 MORI, HIDEMITSU
分类号 H01L23/52;H01L21/3205;H01L21/822;H01L21/8242;H01L27/04;H01L27/108;(IPC1-7):H01L27/108 主分类号 H01L23/52
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