Apparatus and Method for Detecting Coordinate of Unit

PURPOSE: A unit coordinate recognizing device and a method thereof are provided to automatically recognize a location of a unit within a substrate which a worker is currently testing. CONSTITUTION: A bar-code reader(200) is arranged in a lower part of a table. The bar-code reader recognizes a bar-code map through a penetration hole. The bar-code reader extracts a bar-code coordinate. The bar-code reader transfers the extracted barcode coordinate to a control unit(310). The control unit applies the bar-code coordinate to a coordinate recognition standard from the bar-code reader. The control unit recognizes a unit coordinate of a substrate.