METHOD AND DEVICE FOR LASER DRILLING LAMINATES

摘要

A method and device for the laser drilling of laminates includes the use of a frequency-doubled Nd vanadate laser. The laser includes the following parameters: pulse width<40 ns, pulse frequency>=30 kHz for the metal layer and >=20 kHz for the dielectric layer, and wavelength=532 nmn. Such a laser is used for the laser drilling of laminates which have at least one metal layer and at least one dielectric layer including an organic material.