A contactless memory architecture has a column of bidirectional multi-bit memory cells between each adjacent pair of diffused lines in a bank. The architecture includes about half as many metal lines as diffused lines, and bank select cells at both ends of the bank. Most bank select cells connect respective...http://www.google.de/patents/US7061801?utm_source=gb-gplus-sharePatent US7061801 - Contactless bidirectional nonvolatile memory
