| 摘要 |
PROBLEM TO BE SOLVED: To make repairable at the stages of water and package by providing plural anti-fuses short-circuiting by a programming signal from the out side, an anti-fuse program section generating a signal relating to a state of the anti- fuse, and a second fuse section switching in accordance with an output signal of the anti-fuse program section. SOLUTION: A column repair control section 30 outputs a control signal for performing column repair. An anti-fuse program section 40 comprises plural, for example, 22 anti-fuses, and generates a signal R<1:22> relating to the state of anti-fuses. The anti-fuses are programmed in accordance with a programming signal supplied from the outside, that is, high voltage HV and a decoding signal SDA. A repair signal generating section 50 receives other input signal and the signal R<1:22> from the anti-fuse program section 40, and generates a repair signal spb. |
