Abstract
Laser-direct-write pyrolytic deposition of tungsten at 514.5 nm, out of the WF6 /H2 reduction system, was carried out on Al2O3 substrates between sputtered-on gold contact pads. Heat, generated by pulsed current sent through the laser-induced microdeposit, is used to amplify the microstructure by a conventional, however well localized, chemical vapor deposition process. In addition to tungsten, other more volatile materials can be deposited for amplification.