Patent ID: 9199355
Filing Date: 2015-12-01
Classification: B23Q,B24B,Y10T

Abstract:
1. An apparatus for grinding a substrate, comprising: a stage part configured to support a substrate thereon; a grinding part that includes a grinding wheel configured to grind an edge of the substrate; a camera part configured to take a picture of the grinding wheel, analyze the picture of the grinding wheel and generate information about the grinding wheel; a replacing part that includes a spare grinding wheel and a replacing table, wherein the replacing part is configured to provide the spare grinding wheel to the grinding part or pick up the grinding wheel from the grinding part and the replacing table is configured such that the replacing table is disposed inside a process space, in which the substrate is ground, during a replacement mode and disposed outside the process space during a standby mode such that the spare grinding wheel can be provided prior to being picked up and the grinding wheel may be removed after being picked up from the grinding part without stopping the operation of the substrate grinding apparatus; and a control unit configured to receive the grinding wheel information from the camera part and offset compensate a position of the grinding wheel on the basis of the grinding wheel information or communicate with the replacing part to replace the grinding wheel on the basis of the grinding wheel information.