CALCULATION OF ANGLE OF BONDING COMPONENT

PURPOSE:To determine the angle of inclination of a bonding component by a method wherein the lengths between a plurality of points along the sides of the bonding component and the reference coordinate point are calculated and the found length to each coordinate point is added. CONSTITUTION:In reference coordinates (R1 to R4) selected from among arbitrary coordinates on each side of a pellet 2 positioned on an X-Y table, coordinate axes x1, x2, y1 and y2 are formed of each line parallel to coordinate axes to pass the origin of the X-Y table in directions X and Y. A plurality of arbitrary points on each side, which is extended from the reference coordinates R1 to R4 to the directions X and Y, are selected and the coordinate points of these points are found. A plurality of similar coordinate points are found on each side. Data on these found coordinate points is stored. The lengths between the reference coordinate points and each selected coordinate point in the directions X and Y are found as data on axes X and Y on the basis of the stored data and the found length to each coordinate point is added in the directions X and Y and the accurate angle of inclination of the pellet can be calculated from each line to pass between the coordinate points.