The read-only memory takes the form of an integrated circuit. The data stored in the read-only memory include a first data record and a second data record in the form of corresponding first and second structures, respectively, of the integrated circuit. The first structures are fabricated by means of...http://www.google.fr/patents/US6303474?utm_source=gb-gplus-shareBrevet US6303474 - Read-only memory and fabrication method
