Laser drilling system and method for flexible printed...

Details Laser drilling system and method for flexible printed... Laser drilling system and method for flexible printed...

2007-01-30

2007-01-30

Rodriguez, Armando (Department: 2828)

Coherent light generators

Particular beam control device

Nonlinear device

C219S121710, C372S009000

Reexamination Certificate

active

11238485

ABSTRACT:
A laser drilling system for flexible printed circuit board includes a first mirror, a second mirror, a laser crystal, a third harmonic generator and a second harmonic generator. The first mirror and the second mirror are spaced apart and defined a resonator cavity therebetween. The laser crystal is disposed in the resonator cavity for generating a fundamental laser beam. The third harmonic generator and the second harmonic generator are disposed the resonator cavity. A fundamental laser beam is directed to the second harmonic generator for generating a second harmonic laser beam, the fundamental laser beam and the second laser harmonic laser beam is directed to the third harmonic generator for generating a third harmonic laser beam, the third harmonic laser beam is output from the resonator cavity. A laser drilling method for flexible printed circuit board is also provided.

REFERENCES:
patent: 5292686 (1994-03-01), Riley et al.

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