Patent ID: 8837809

Claim:
A method for detecting a bridge connecting failure that shorts terminals of a component, comprising: acquiring a 2D image and a height-based information through a plurality of lights which are irradiated on a board, on which the component is mounted, and are reflected from the board; acquiring rotation information of the component using at least one of the 2D image and the height-based information; establishing an inspection region for detection of the bridge connecting failure on the component on the basis of the rotation information; comparing the grey level of each pixel of the 2D image with a threshold level to detect a first group of bridge connecting failure position within the inspection region, wherein each of the first group of bridge connection failure position has a grey level exceeding a threshold level; detecting a second group of bridge connecting failure position within the inspection region using the height-based information; and judging a position where the first group of bridge connecting failure position overlaps the second group of bridge connecting failure position as a final bridge connecting failure position.