Appeal No. 1999-1098 Application 08/627,313 a peripheral circuit for said plurality of memory blocks arranged on said semiconductor substrate at a center of said memory blocks, completely surrounded by said plurality of memory blocks. 13. A semiconductor memory device comprising: a semiconductor substrate; first through fourth memory blocks arranged on said semiconductor substrate to surround a center of said semiconductor substrate, each memory block having a rectangular shape and including a plurality of word lines, a plurality of bit lines crossing said plurality of word lines, and a plurality of memory cells corresponding to crossing points of said plurality of word lines and said plurality of bit lines; and a peripheral circuit for said first through fourth memory blocks, disposed on said semiconductor substrate at a center of said first through fourth memory blocks; wherein said first memory block is arranged so that one shorter side of said first memory block is adjacent to one longer side of said fourth memory block and one longer side of said first memory block is located on an extension of one shorter side of said fourth memory block, said second memory block is arranged so that one shorter side of said second memory block is adjacent to another longer side of said first memory block and one longer side of said second memory block is located on an extension of another shorter side of said first memory block, said third memory block is arranged so that one shorter side of said third memory block is adjacent to another longer side of said second memory block and one longer side of said third memory block is located on an extension of another shorter side of said second memory block, and 3Page: Previous 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 NextLast modified: November 3, 2007