Patent ID: 6040552
Filing Date: 2000-03-21
Classification: B23K,H05K

Abstract:
A multiple-via-hole via-pattern drilling system, having a substrate delivery subsystem for presenting a set of substrate segments at a processing station, and for carrying away each substrate segment set after processing, characterized by:a) a laser module (1) arranged generally in operational proximity to said processing station, being operational to produce a powerful beam output of pulses;b) a beam processing module (3) arranged to accept the beam output of said laser module (1) and forward a shaped beam with the selected numerical aperture;c) a homogenizing and recollimating module (4) arranged to accept the beam output of said beam processing module (3) and forward a shaped, uniform, and nearly collimated beam;d) an illumination module (6) arranged to accept the beam output of said homogenizing and recollimating module (4) and to reconfigure the beam output into a set of sub-beams of predetermined characteristics in an operational pattern;e) a condenser module (7) having a set of one or more condenser lens assemblies arranged each to accept a related sub-beam from said illumination module (6) and to illuminate a set of via-hole patterns;f) a mask module (9), having said via-hole patterns arranged to accept the sub-beam outputs of said condensermodule (7); andg) a projection module (11) arranged to accept the sub-beam via-pattern outputs of said mask module (9) to provide a set of said related mask-patterned Imaging sub-beams for via-drilling a substrate currently presented at said processing station.