TRIMMING METHOD AND DEVICE

摘要

PROBLEM TO BE SOLVED: To quickly and highly accurately trim a part to be trimmed, while measuring the characteristics of a trimming component or a circuit board packaging the trimming component. SOLUTION: This trimming method for trimming a part 1 to be trimmed by a laser beam trims the part 1 by the use of a laser beam set up to a beam diameter H1, when a difference between a measured value obtained during the execution of trimming and an objective value is large, and when the difference between the measured value and the objective value becomes small during the execution of trimming, changes the beam dimater of a laser beam to a beam diameter H2 which is smaller than the beam diameter H1 during the execution of trimming to trim the part 1.