A data processor includes an authentication circuit for judging access right. The data processor further includes a nonvolatile memory cell array formed on an insulator film of a chip, and a conductor layer provided between a logic circuit of the authentication circuit and the nonvolatile memory cell...http://www.google.es/patents/US7177187?utm_source=gb-gplus-sharePatente US7177187 - Semiconductor device having a nonvolatile memory array and an authentication circuit arranged in a vertical stack configuration
Semiconductor device having a nonvolatile memory array and an authentication ...
