Also found in: Acronyms.
ultrasonic soldering[¦əl·trə′sän·ik ′säd·ə·riŋ]
A method used for aluminum soldering by ultrasonically vibrating the soldering iron to disrupt the oxide film on the metal.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
A soldering process in which high-frequency sound waves are transmitted through molten solder to remove undesirable surface films from the base metal, thereby promoting wetting of the base metal with solder; usually accomplished without the use of flux.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.