Patent ID: 6567761
Filing Date: 2003-05-20
Classification: H01L

Abstract:
A part measurement system comprising:a press machine including a lower die coupled to an upper die, wherein the lower die includes a top surface supporting a strip of material to be formed into a part after a stripper plate coupled to the upper die contacts the strip of material; a part measurement sensor located in the lower die, wherein the sensor measures a critical dimension of the part while the part is in the lower die; and a press controller coupled to the press machine and the sensor, wherein the controller processes a measurement signal from the part measurement sensor of the critical dimension of the part, compares the measurement signal to a predetermined threshold value, and generates a command signal to the press machine to either reject or accept the part; wherein the part measurement sensor generates a first measurement signal in a first half of a press machine cycle and a second measurement signal in a second half of a press machine cycle.