Patent ID: 6431961
Filing Date: 2002-08-13
Classification: B24B,H01L

Abstract:
A wafer chamfering apparatus for chamfering a periphery of a wafer, comprising:a main grindstone; main grindstone rotating means for rotating the main grindstone; a wafer table for holding the wafer in parallel with the main grindstone; wafer table rotating means for rotating the wafer table; wafer table moving means for moving the wafer table along an axis of the wafer and moving the wafer table along a face of the wafer; a notch machining grindstone for chamfering a notch formed in the wafer, the notch machining grindstone being arranged in proximity to the main grindstone; and notch machining grindstone rotating means for rotating the notch machining grindstone, wherein the wafer is rotated while being moved to the main grindstone being rotated, and the periphery of the wafer is brought into contact with the main grindstone so as to be chamfered.