| 摘要 |
An electrical fuse circuit of the present invention includes a plurality of electrical fuse cores ( 1 ) each of which has an electrical fuse element ( 3 ) and a switch transistor ( 4 ) connected in series with each other, and shift registers ( 2 ) connected to the plurality of electrical fuse cores ( 1 ) to program the electrical fuse elements ( 3 ). Program enable signals (Si) are sequentially generated and transferred by the shift registers ( 2 ), the switch transistors ( 4 ) are sequentially brought into conduct according to the program enable signals (Si) and the information of program data (Di), and the electrical fuse elements ( 3 ) are blown one by one.
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