positional accuracy in ceramic microcircuits. High speed glass drilling capabilities. Precision machining of complex designs in brittle materials. "Material specific" laser equipment... drilling prices to tumble up to 1/100th of our initial goal in many production programs. Over twenty years (20) after our formation, Accu-Tech still uses our advanced CO2 laser...

Laser Drilling and Machining... LASER DRILLING & MACHINING OF CERAMIC SUBSTRATES Accu-Tech 1994 APPLICABILITY This document provides general guidelines and considerations... for the laser drilling and machining of fired ceramic substrates typically used in the manufacture of microelectronic circuits and multichip modules. The specifications and tolerances... given here will generally produce the MOST COST EFFECTIVE design approach. Tighter tolerances may be achieved at some increased cost and leadtime. PURPOSE OF LASER DRILLING AND...

reinforced with either glass fibers, woven glass fabric, or proprietary ceramic materials. Certain types of filler materials are used to control the substrate dielectric constant... used in the industry consist of six basic manufacturing processes: Masking and etching Routing with a router Cutting with a CO2 Laser Through-hole plating Drilling with a bit... HOW THE LASER CUTS PTFE LAMINATES The laser cutting process uses infrared light focused to a small spot (approx. 0.005 in.) to cut through the substrate material. PTFE, glass...