Patent ID: 6747481
Filing Date: 2004-06-08
Classification: G11C

Abstract:
A method of programming electrical fuses comprising the steps of:reading the desired data for a array of fuses to be programmed from a programmation source; programming the array of fuses by applying a programmation pulse to fuses where a corresponding bit of the desired data has a first digital state, and applying no programmation pulse to fuses where a corresponding bit in the desired data has a second digital state; and repeating the sequence of reading the programmation of the fuses, programming the array of fuses by applying a programmation pulse to fuses where a corresponding bit of the desired data has a first digital state and the read state of the fuse fails to match the corresponding bit of the desired state, applying no programmation pulse to fuses where a corresponding bit in the desired data has a second digital state, and applying no programmation pulse to fuses where a corresponding bit of the desired data has a first digital state and the read state of the fuse matches the corresponding bit of the desired state, until all fuses match the corresponding bit of the desired state.