Second memory cells of a second memory block each have an area 2a times (a is a positive integer) that of each first memory cell of a first memory block. Sizing the first and second memory cells in a predetermined ratio can make easily identical the dimensions of the first memory block and the second...http://www.google.com.au/patents/US7193922?utm_source=gb-gplus-sharePatent US7193922 - Semiconductor integrated circuit
