Cost models are available for laser drilling of micro vias. These models are based upon the the type of laminate ( or dielectric material) being used. The models shows the cost to drill 1000 vias as a function of material depth. If you are interested please contact me directly via e:mail or telephone me and I can get you specific information. Most of my models are in Excel 5.0 spread sheets and charts. Jim Morrison "[log in to unmask]" Voice mail: 613/592-4375, Ext 1359 Thanks and best of luck