For RoHs, lead HASL is certainly out, but you would be OK with SAC HASL Colin W.T. McVean M.Inst.C.T Production Manager Artetch Circuits Ltd (www.artetch.co.uk) Direct Dial 01903 712926 Switch Board 01903 725365 Skype: colin.artetch 40th Anniversary 1967 - 2007 P Before printing , please think about the Environment -----Original Message----- From: Wood, Kenneth [mailto:[log in to unmask]] Sent: 21 June 2007 15:50 To: Colin McVean; ([log in to unmask]) Subject: RE: [TN] PCB Finish Any large parts have to be non-magnetic...which makes layout of switching power supplies fun but SMT parts are ok with small amounts of nickel in their leads. Our products have to be ROHS too, so does that mean HASL is out? Ken __________________________________________ Kenneth Wood Senior PCB Designer Invivo Corp. 12601 Research Parkway Orlando, FL 32826 Phone: 407-275-3220 ext. 179 Mobile: 407-340-2668 Fax: 321-239-1910 Email: [log in to unmask] Internet: http://www.invivocorp.com -----Original Message----- From: Colin McVean [mailto:[log in to unmask]] Sent: Thursday, June 21, 2007 9:56 AM To: TechNet E-Mail Forum; Wood, Kenneth Subject: RE: [TN] PCB Finish I made bare PCB's for a well known European MRI company which had a finish of Leaded HASL. They then switched to immersion Silver with no issues. Curious though, what about the plated nickel on your component leads/legs etc? Colin W.T. McVean M.Inst.C.T Production Manager Artetch Circuits Ltd (www.artetch.co.uk) Direct Dial 01903 712926 Switch Board 01903 725365 Skype: colin.artetch 40th Anniversary 1967 - 2007 P Before printing , please think about the Environment -----Original Message----- From: TechNet [mailto:[log in to unmask]] On Behalf Of Wood, Kenneth Sent: 21 June 2007 14:46 To: [log in to unmask] Subject: [TN] PCB Finish Hey all, Question: I design PCB's for MRI use so Nickel is no good because it is magnetic. Is there a standard finish I can use that does not whisker like tin, has no nickel like ENIG and can be made by anyone (most at least). What about Silver? Thanks Ken __________________________________________ Kenneth Wood Senior PCB Designer Invivo Corp. 12601 Research Parkway Orlando, FL 32826 Phone: 407-275-3220 ext. 179 Mobile: 407-340-2668 Fax: 321-239-1910 Email: <mailto:[log in to unmask]> [log in to unmask] Internet: <http://www.invivocorp.com/> http://www.invivocorp.com ------------------------------------------------------------------------ -------- This email and any files transmitted with it are intended only for the use of the individual or entity to which it is addressed and may contain information that is proprietary, confidential and exempt from disclosure under applicable law. If the reader of this message is not the intended recipient, or the employee or agent responsible for delivering the message to the intended recipient, you are hereby notified that any dissemination, distribution or copying of this communication is strictly prohibited. If you have received this communication in error, please delete it and notify us immediately. ------------------------------------------------------------------------ -------- --------------------------------------------------- Technet Mail List provided as a service by IPC using LISTSERV 15.0 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 ----------------------------------------------------- ------------------------------------------------------------------------ -------- This email and any files transmitted with it are intended only for the use of the individual or entity to which it is addressed and may contain information that is proprietary, confidential and exempt from disclosure under applicable law. If the reader of this message is not the intended recipient, or the employee or agent responsible for delivering the message to the intended recipient, you are hereby notified that any dissemination, distribution or copying of this communication is strictly prohibited. If you have received this communication in error, please delete it and notify us immediately. ------------------------------------------------------------------------ -------- --------------------------------------------------- Technet Mail List provided as a service by IPC using LISTSERV 15.0 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 -----------------------------------------------------