Rick In LEADFREE 20 lead-free solderpastes where qualified: - Ionic contamination - Corrosiveness - Wetting - Uniformity of powder - Metal content - Contour stability - Solderballing The qualification was done by one of our project members from industry from the point of view whether or not the paste does conform to the requirements of this particular company. From Koki the JT3SX-48-M301 was tested and showed excellent results in all tests. Best regards Guenter EMPA Swiss Federal Institute for Materials Testing and Research Centre for Reliability Guenter Grossmann, Senior Engineer 8600 Duebendorf Switzerland Phone: xx41 1 823 4279 Fax : xx41 1823 4054 mail: [log in to unmask] --------------------------------------------------- Technet Mail List provided as a free service by IPC using LISTSERV 1.8e To unsubscribe, send a message to [log in to unmask] with following text in the BODY (NOT the subject field): SIGNOFF Technet To temporarily halt or (re-start) delivery of Technet send e-mail to [log in to unmask]: SET Technet NOMAIL or (MAIL) To receive ONE mailing per day of all the posts: send e-mail to [log in to unmask]: SET Technet Digest Search the archives of previous posts at: http://listserv.ipc.org/archives Please visit IPC web site http://www.ipc.org/html/forum.htm for additional information, or contact Keach Sasamori at [log in to unmask] or 847-509-9700 ext.5315 -----------------------------------------------------