发明名称 Integrated DRAM memory cell and DRAM memory
摘要 A DRAM memory (50) having a number of DRAM memory cells (51) is described, the memory cells (51) in each case having a storage capacitor (52) and a selection transistor (12) which are formed in the area of an at least essentially rectangular cell area (59), the cell areas (59) having a greater extent in the longitudinal direction (L) than in the width direction (B) and which are wired or can be wired to the cell periphery via a word line (56, 57) and a bit line (55). The word lines (56, 57) and the bit line (55) are conducted over the memory cells (51) and are at least essentially oriented perpendicularly to one another. To achieve, with increasing miniaturization of the DRAM memory patterns, during the transition from so-called "folded" bit line architectures to so-called "open" bit line architectures that the bit line grid, and thus also the grid of corresponding read/write amplifiers, varies linearly in scale with the longitudinal extent (L) of the memory cells (51), it is provided according to the invention that the bit lines (55) are now oriented perpendicularly to the longitudinal extent (L) of the memory cells (51) in the direction of the lateral extent (B) of the memory cells (51)
申请公布号 US2001036102(A1) 申请公布日期 2001.11.01
申请号 US20010801715 申请日期 2001.03.09
申请人 INFINEON TECHNOLOGIES AG 发明人 FREY ALEXANDER;WEBER WERNER;SCHLOSSER TILL
分类号 H01L27/108;G11C11/407;G11C11/4097;H01L21/8242;H01L27/02;(IPC1-7):G11C11/24 主分类号 H01L27/108
代理机构 代理人
主权项
地址