ROW REPAIR APPARATUS

摘要

PURPOSE: A row repair apparatus is provided to decrease a chip size and to enhance a competitive power by using one word line boosting signal generating unit in one memory cell array. CONSTITUTION: Memory cell array blocks(MC0-MC3) have different block addresses each other and are divided by a block selecting address. Word line boosting signal generating unit(34-40) are arranged to corresponding memory cell array blocks(MC0-MC3) and are connected to a redundancy word line of two or more memory cell array block in common. Word line boosting signal generating unit(34-40) provides a word line boosting signal(px) to a redundancy word line driver of the selected memory cell array block when performing a repair. Word line boosting signal generating unit(34-40) provides the word line boosting signal(px) to a normal word line driver of the selected memory cell array block when not performing the repair. A repair information generating unit(42) programs a repair address and provides repair information to corresponding word line boosting signal generating unit(34-40).