Patent ID: 7688663

Claim:
An anti-fuse repair control circuit, comprising: a data mask signal input circuit which receives a data mask signal from the outside, and outputs the data mask signal when a test control signal is received for an anti-fuse repair; a repair voltage pumping unit pumping a supply voltage and a back-bias voltage to generate a repair voltage for an anti-fuse repair when both the test control signal and the data mask signal are received; a cell address enable unit which receives an anti-fuse repair address to enable a cell address of an anti-fuse cell to be repaired when the data mask signal outputted from the data mask signal input circuit is received; a repair enable unit which codes the cell address outputted from the cell address enable unit to generate and output a repair enable signal and a drive signal according to whether or not an anti-fuse cell corresponding to the cell address is enabled; and a repair unit which supplies the repair voltage to the anti-fuse cell when the repair enable signal and the cell address are enabled in a state that the drive signal is enabled, wherein the repair enable unit includes: a plurality of row repair enable units, a number of row repair enable units corresponding to a number of a row address; and a plurality of column repair enable units, a number of column repair enable units number corresponding to a number of a column address.