REDUNDANCY DATA STORING CIRCUIT, A REDUNDANCY DATA CONTROL METHOD AND A REPAIR DETERMINATION CIRCUIT OF A SEMICONDUCTOR MEMORY, CAPABLE OF IMPROVING REPAIR WORK EFFICIENCY

摘要

PURPOSE: A redundancy data storing circuit, a redundancy data control method and the repair determination circuit of a semiconductor memory are provided to perform repair of a fail cell after packing by enabling the change and rewriting of a repair address.;CONSTITUTION: In a redundancy data storing circuit, a redundancy data control method and the repair determination circuit of a semiconductor memory, a redundancy data storage(210) stores redundancy data. The redundancy data storage module outputs pre-stored redundancy data as a redundancy address. The redundancy data activation unit(220) outputs pre-stored redundancy data as a redundancy enable signal. A plurality of address comparison parts(230) compares the redundancy address with the column address. A determining unit(240) outputs a repair determination signal.;COPYRIGHT KIPO 2012