You can HASL with any solder suitable for electronics. In general the surface smoothness should be the same if done correctly. A tighter range is possible with most lead free alloys. -----Original Message----- From: Babcock John [mailto:[log in to unmask]] Sent: 10 November 2005 09:09 PM To: [log in to unmask] Subject: [TN] plating smoothness Does anybody call out a specific smoothness finish ever on a fabrication dwg for the HASL? In these days of lead free, going forawrd, I am wondering if silver will have the same smoothness finish as SN63/PB37 using HASL? 1) Or can you HASL with silver? 2) Does anyone have an example of a fab note for such a callout? Or is this getting too specific? John Babcock PCB Designer III Isothermal Systems Research (ISR) 2218 N. Molter Rd Liberty Lake, WA 99019 [log in to unmask] P: (509) 241-4641 F: (509) 444-1082 This E-mail and any files transmitted with it are confidential and proprietary in nature and intended solely for the use of the individual to whom it is addressed. If you have received this E-mail in error, please send it back to the person that sent it to you. Any views or opinions presented are solely those of its author and do not necessarily represent those of Isothermal Systems Research, Inc. Unauthorized publication, use, dissemination, forwarding, printing or copying of this email and its associated attachments is strictly prohibited. Thank you for your cooperation. --------------------------------------------------- Technet Mail List provided as a 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/contentpage.asp?Pageid=4.3.16 for additional information, or contact Keach Sasamori at [log in to unmask] or 847-615-7100 ext.2815 ----------------------------------------------------- --------------------------------------------------- Technet Mail List provided as a 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/contentpage.asp?Pageid=4.3.16 for additional information, or contact Keach Sasamori at [log in to unmask] or 847-615-7100 ext.2815 -----------------------------------------------------