I've been using gold over silver succesfully for prototype boards. The main reason I started this is because I need/want to avoid Ni on my RF boards. I used to use just silver but had problems with silver sulphide buildup after people had handled the boards. The Au provides a good protection for the Ag.
Au over Ag may be unique to my fabricator (and may well have been developed in direct response to my needs), but I don't know that there's anything particularly difficult involved - I certainly don't get charged any extra. John Haddy -----Original Message----- From: Wayne Bickers [mailto:[EMAIL PROTECTED]] Sent: Tuesday, 23 April 2002 11:50 AM To: Protel EDA Forum Subject: [PEDA] Gold or silver plating Sorry this is a little off topic but you guys are the ones who will know. I have 3 issues, 1) I require a smooth finish, hence gold or silver plating/ flashing 2) I need the PCB's to last in stores for a period of time, for arguements sake call it 1 year without oxidising 3) I need to have some pads hand soldered and require a good wetting effect (spreading of the solder when applied) I would appreciate it if anyone out there has tried both and could indicate which may be the better finishing material to use. thanks Wayne Bickers Electronics Engineer Tru-Test Ltd * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * To post a message: mailto:[EMAIL PROTECTED] * * To leave this list visit: * http://www.techservinc.com/protelusers/leave.html * * Contact the list manager: * mailto:[EMAIL PROTECTED] * * Forum Guidelines Rules: * http://www.techservinc.com/protelusers/forumrules.html * * Browse or Search previous postings: * http://www.mail-archive.com/[email protected] * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
