art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein various embodiments of the present invention will now be described with reference to fig3 through 8 fig3 is a layout plane view illustrating active regions and word lines in a dram device having a 6f 2 layout according to some embodiments of the present invention fig4 is a layout view illustrating the active regions and bit lines in the dram device of fig3 as shown in the embodiments of fig3 the dram device 300 includes a plurality of active regions 302 a plurality of word lines 303 and a plurality of bit lines 304 the active regions 302 are defined by an isolation region 301 each of the active regions 302 is shown as having a bar shape with curved ends shown as semi circles on each end in fig3 adjacent active regions 302 are disposed in a zigzag pattern a right handed portion of a respective active region 302 is aligned with left handed portions of adjacent active regions 302 in the vertical direction y appearing as upper and lower adjacent active regions 302 as illustrated in fig3 similarly a left handed portion of a respective active region 302 is aligned with right handed portions of further adjacent upper and lower active regions 302 in the vertical direction y the word lines 303 extend in the vertical direction y in a striped pattern each of the word lines 303 overlaps a central portion of one of.