INTERNAL VOLTAGE GENERATOR USING ANTI-FUSE

The present invention relates to an internal voltage generator using anti-fuse, which generates decoding signals using anti-fuses capable of being programmed by signals inputted from the outside, and then generates the internal voltages, each of them having a different level, thereby conveniently trimming the internal voltage to be suitable for an external environment even at a packaging step process of a semiconductor device. Decoding means for generating the decoding signals includes: buffer means changing voltage signals of TTL level inputted through bonding pads to those of CMOS level; programming signal generation means generating signals for programming the anti-fuses in accordance with signals from said buffer means; a plurality of anti-fuse means having the anti-fuses capable of being programmed by the signals from said programming signal generation means, and outputting signals in response to a state of the anti-fuses; and output means performing a logical operation of the signals from said anti-fuse means, thereby outputting said decoding signals.