Patent ID: 7581331

Claim:
A calibration device for a nozzle, suitable for calibrating a nozzle of a semiconductor apparatus, wherein the semiconductor apparatus comprises a chuck having a center hole with a radius R 1 , a cap with an outer radius R 3 is disposed outside the nozzle with an outer radius R 2 , and the calibration device comprising a jig, wherein the jig comprises: an upper portion, including a recess in a front surface of the upper portion, wherein the recess comprises: an outer portion, having a depth D 1 and a radius R 4 , wherein R 4 is larger than R 3 , and the value of (R 4 −R 3 ) is in a tolerable calibration inaccuracy range; and an inner portion, having a depth D 2 and a radius R 5 , wherein D 2 is larger than D 1 , R 5 is larger than R 2 , and the value of (R 5 −R 2 ) is in a tolerable calibration inaccuracy range; and a lower portion, connected to a back surface of the upper portion, so as to fix the jig in the center hole of the chuck, wherein the lower portion has a radius R 6 , R 6 is smaller than R 1 , and the value of (R 1 −R 6 ) is in a tolerable calibration inaccuracy range.