首页>
外国专利>
SEMICONDUCTOR MEMORY DEVICE CAPABLE OF READING DATA OF SIGNATURE FUSE THROUGH NORMAL READ OPERATION AND METHOD FOR READING DATA OF SIGNATURE FUSE THROUGH NORMAL READ OPERATION IN SEMICONDUCTOR MEMORY DEVICE
SEMICONDUCTOR MEMORY DEVICE CAPABLE OF READING DATA OF SIGNATURE FUSE THROUGH NORMAL READ OPERATION AND METHOD FOR READING DATA OF SIGNATURE FUSE THROUGH NORMAL READ OPERATION IN SEMICONDUCTOR MEMORY DEVICE
PURPOSE: A semiconductor memory device capable of reading the data of a signature fuse through normal read operation and a method for reading the data of a signature fuse through normal read operation in a semiconductor memory device are provided to read through a normal read operation at the test mode after the data of the signature fuse is recorded on the memory cell. CONSTITUTION: A semiconductor memory device(200) capable of reading the data of a signature fuse through normal read operation includes a memory cell array(260) provided with a plurality of memory cells, an input buffer(230) and an output buffer(280). The input buffer(230) writes the data of the signature fuse on each of the memory cells while the test mode of the semiconductor memory device(200) is performed. The output buffer(280) reads the data of the signature fuse recorded through the normal read operation of the semiconductor memory device(200). And, the data of the signature fuse is the data of '0' or the data of '1' based on the cut of the signature fuse.
展开▼
