| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a fuse element circuit which more surely prevents a fuse setting an option change signal from being cut wrong and improve a yield. SOLUTION: The circuit is provided at least with a dummy fuse part 400 which has a dummy fuse cut when a first and a second input signals are impressed under a predetermined input condition, and generates a dummy signal when the dummy fuse is cut, and a first fuse part 500 which has a fuse cut when the dummy signal is generated and a third input signal is impressed under a predetermined input condition and, generates a first option change signal when the fuse is cut. The circuit is further provided with a second fuse part 600 which has a fuse cut when the first option change signal of a plurality of option change signals is not generated and a forth input signal is impressed under a predetermined input condition, and generates a second option change signal when the fuse is cut.</p> |
