I sent this to TechNet, but I thought someone here might have a comment too. Our PCB house requested that we specify using a White Tin coating over copper for improved solderability. Has anyone had any experience with this before? Solderability, Cost, Oxidation, etc...? Thanks in advance, Joe All views and opinions expressed are my own and may not represent the views and opinions of my employer. ::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::: Joe Reichert mailto:[log in to unmask] NorthStar Technologies, Inc. A Lake Shore Company 575 McCorkle Boulevard Westerville, Ohio 43082 Voice: 614-818-1150 Ext. 238 Fax: 614-818-1605 http://www.northstar-tec.com