Hi all, You might want to check out JDEC's site, as they call it "Fine Pitch". Go to http://www.jedec.org/download/default.cfm and search for document MO-205. Regards, Ed Popielarski QTA Machine 10 Mc Laren, Ste D Irvine, Ca. 92618 Phone:949-581-6601 Fax: 949-581-2448 Cel: 949-337-2578 WWW.QTA.NET