Patent ID: 8084706
Filing Date: 2011-12-27
Classification: B23K,H01L

Abstract:
1. A method of on-the-fly laser processing at least one structure of a group of structures on a moving stage with a pulsed laser output along a pulsed laser output axis, the at least one structure having at least one respective optimal processing time, said method comprising the steps of: relatively positioning the at least one structure of the group of structures and the pulsed laser output axis with non-constant velocity and applying the pulsed laser output to the at least one structure of the group of structures during the step of relatively positioning the at least one structure of the group of structures and the pulsed laser output axis with non-constant velocity by selecting one or more laser pulses from a laser that is pulsed at a constant repetition rate that is not synchronized with relatively positioning the at least one structure of the group of structures and the pulsed laser output axis such that laser processing of said at least one structure is performed during at least one time interval that comprises the at least one respective optimal processing time and a pulse-to-pulse time between sequential constant repetition rate laser pulses, wherein a distance that is characterized by a product of the at least one time interval and a relative positioning velocity at the optical processing time is within an acceptable position error between the pulsed laser output axis and the at least one structure of the group of structures.