an antifuse redundancy circuit operates with transparency to external circuitry and users . in one embodiment , an antifuse redundancy circuit incorporates two antifuses rather than one . the circuit is arranged so that both antifuses may be simultaneously programmed and read . if a single antifuse is programmed without programming the other antifuse , the antifuse redundancy circuit will register a programmed antifuse . additionally , if a single programmed antifuse is unintentionally deprogrammed after both antifuses in the redundancy circuit have been programmed , the antifuse redundancy circuit will continue to register a programmed antifuse . the result is both an increase in manufacturing yield and an increase in the reliability of integrated circuits utilizing antifuses .