Patent ID: 6587743
Filing Date: 2003-07-01
Classification: G05B,Y10T

Abstract:
A method of teaching a location in a device programming apparatus, the method comprising the steps of:providing a device in the location to be taught; providing a nozzle capable of picking up the device, wherein the nozzle has an initial set of horizontal coordinates and an initial vertical coordinate; positioning the nozzle to a first set of horizontal coordinates different from the initial set of horizontal coordinates such that the nozzle is above the device; automatically determining, with the nozzle, the vertical position of the device relative to the initial vertical coordinate; storing the vertical position such that in the future, the nozzle is moved to the vertical position stored to pick or place the device; automatically determining, for each of the horizontal coordinates, offset coordinates of the center of the device relative to the nozzle; combining the horizontal offset coordinates with the first set of horizontal coordinates so as to determine the location of the device relative to the initial set of horizontal coordinates; repeating the step of determining the horizontal offset coordinates two or more times; and determining an average offset coordinate for each of the horizontal coordinates, wherein in the step of combining, the average offset coordinates are combined with the first set of horizontal coordinates.