Fuse circuit and testing method of the same

摘要

A fuse circuit includes a data line, a plurality of fuse cells selectively programmed and electrically connected with the data line in response to respective selection signals, a dummy fuse cell electrically connected with the data line in response to a test signal, and a sense amplifier configured to sense a data of the data line. The fuse circuit includes a plurality of fuses, reduces the area thereof, and easily detects whether a sense amplifier operates properly or not in the fuse circuit.

主权项

1. A fuse circuit, comprising:
a data line; a plurality of fuse cells selectively programmed and electrically connected with the data line in response to respective selection signals; a dummy fuse cell electrically connected with the data line in response to a test signal; and a sense amplifier configured to sense a data of the data line.