YAG Laser Trimming


ALT’s low power YAG trimmers are capable of active and passive trim of thick and thin film resistors. Ranges include 1 Milliohm to 1 Gigohm with an accuracy of +/- .05%.

Our laser trimmers come complete with a read and write system that monitors accuracy, percent yield, and final trim values. Other trimming processes include plated tie bar removal and gold package base mounting pad isolation. Serializing, marking, and cutting of alumina, silicon wafers, packages, thin metals, fine wires, and other components are also services that ALT provides.




  • 96% Alumina
  • 99.6% Alumina
  • Aluminum nitride
  • Beryllium oxide
  • FR-4
  • FR-4: Prepreg materials


If you have a material not listed, please let us know and we’ll be happy to process a sample for your evaluation.