Patent ID: 6130428
Filing Date: 2000-10-10
Classification: G01R,H01L

Abstract:
Apparatus for fault correction in a semiconductor device, comprising:an electron beam generator for providing an electron beam to the semiconductor device:a detector for detecting secondary electrons from the electron beam irradiating the semiconductor device to determine misalignment of circuitry on the semiconductor device and the location of faulty circuitry in the semiconductor device without contacting the semiconductor device;a laser generator connected to and in a fixed relationship to said electron beam generator for providing a laser beam adjacent to said electron beam to cut out faulty circuitry in the semiconductor device;a semiconductor device carrier movably connected to said electron beam generator, said detector, and said laser generator for positioning the semiconductor device relative thereto for successively detecting faulty circuitry and correcting faulty circuitry; anda control system connected to said electron beam generator, said detector, said semiconductor device carrier, and said laser generator to control said laser generator to provide the laser beam to correct faulty circuitry in the semiconductor device by cutting out faulty circuitry in response to said electron beam generator providing the electron beam, said detector locating faulty circuitry, and said control system responsive to said detector determining misalignment of the circuitry on the semiconductor device to cause said semiconductor device carrier to correct the misalignment.