Patent ID: 6939199
Filing Date: 2005-09-06
Classification: B23D,B28D,H01L,Y10S,Y10T

Abstract:
1. A method of exchanging a blade of a semiconductor substrate saw, comprising: removing a used blade from a blade mount carried on a shaft of the saw; mounting a new blade on the blade mount; prior to contacting a semiconductor substrate with the new blade, rotating the new blade; prior to contacting the semiconductor substrate with the new blade, monitoring a distance to a face of the new blade as the blade rotates; prior to contacting the semiconductor substrate with the new blade, determining a baseline distance to the face of the blade and determining a deviation from the baseline distance; prior to contacting the semiconductor substrate with the new blade, indicating an error if the deviation exceeds a predetermined maximum deviation; and, only if the error is not indicated, making a cut at least partially through the semiconductor substrate with the blade.