Patent ID: 8035058
Filing Date: 2011-10-11
Classification: B23K,G02F,H01L

Abstract:
1. A pattern repairing apparatus which repairs and normalizes a defect in an electronic circuit pattern formed on a substrate, based on inspection data from an inspection apparatus, comprising: an inspection data receiving unit which receives from said inspection apparatus an image in proximity to a repair portion and a coordinate of the repair portion; a repair portion/pattern detecting unit which detects the repair portion and a pattern separately, from said image in proximity to the repair portion; a laser irradiation unit which irradiates a laser beam; a mask which changes a shape of said laser beam by allowing said laser beam to pass through a laser transparent region; a mask moving unit which moves a mask to a position where the pattern separated by said repair portion/pattern detecting unit has a shape identical to a shape of a laser beam to be irradiated; and an irradiating region setting unit which divides the repair portion separated by said repair portion/pattern detecting unit into a plurality of regions; wherein said laser transparent region is larger than the irradiating region of said laser beam, and said laser transparent region has a shape other than a rectangular shape; and wherein said laser irradiation unit scans said laser beam in a status where a position on said mask is fixed, changes the rectangular shape to a shape other than the rectangular shape, and irradiates the plurality of regions of said repair portion with said laser beam.