Non-volatile programmable fuse apparatus in a flash memory with pairs of supercells programmed in a complementary fashion

摘要

The non-volatile, programmable fuse apparatus has a pair of p-channel transistors coupled in a latch configuration. A supercell is coupled between each transistor and ground. Each supercell is comprised of a plurality of non-volatile memory cells that are each programmed substantially similarly for each supercell. The supercells are programmed in a complementary fashion. The output state of the apparatus is determined by the state of the supercell to which the output is coupled.