A process electrostatic discharge ("ESD") protection device is incorporated on a chip with the antifuses that it is designed to protect and is formed as close in time as possible to the deposition of the antifuse material layer (the layer being protected) so that ESD protection is available at all practical...http://www.google.se/patents/US5629227?utm_source=gb-gplus-sharePatent US5629227 - Process of making ESD protection devices for use with antifuses