Method for Improving the Quality of Metal Deposited by Laser-Induced Decomposition of Organometallic Gases
Original Publication Date: 1986-Dec-01
Included in the Prior Art Database: 2005-Mar-09
Metals deposited on substrates by photolytic or photothermal laserinduced decomposition of organometallic gases are fine grained with poor electrical properties. By the inclusion of a few atomic percent of certain additional metals, chemically stimulated grain growth at low temperatures greatly increases grain size and film quality. State-of-the-art methods for depositing metals using laser-induced decomposition of organometallic gases by photolytic or photothermal processes do not produce high quality films. Fine grained deposits of single metallic elements usually contain some amount of carbon or organic fragments. The resistances of these deposits range from 3 to several hundred times that expected for the bulk crystalline (or large grained polycrystalline) metallic element.