>-----Original Message----- >From: John Pearson [mailto:xero@CMC.NET] >Sent: 04 March 2004 15:12 >To: PICLIST@MITVMA.MIT.EDU >Subject: Re: [EE:] Problems using "silver" solder? > > >----- Original Message ----- >From: "Alan B. Pearce" >To: >Sent: Thursday, March 04, 2004 6:16 AM >Subject: Re: [EE:] Problems using "silver" solder? > > >. The soldering itself requires >> using rosin and tinning before making the joint, and de-golding >> connector and component pins before making the joint. > >What is de-golding. If I want to solder gold plated headers to >a circuit board, I need to scrape off the gold? > >Thanks > >John Gold can diffuse into the solder and cause the joint to become very brittle with age. Have a look at http://www.alphametals.com/products/solder_solutions/tech_art.html for "everything you wanted to know about soldering but were afraid to ask". Specifically http://www.alphametals.com/products/solder_solutions/pdf/soldergld.pdf deals with the issue of soldering to gold. Regards Mike ======================================================================= This e-mail is intended for the person it is addressed to only. The information contained in it may be confidential and/or protected by law. If you are not the intended recipient of this message, you must not make any use of this information, or copy or show it to any person. Please contact us immediately to tell us that you have received this e-mail, and return the original to us. Any use, forwarding, printing or copying of this message is strictly prohibited. No part of this message can be considered a request for goods or services. ======================================================================= Any questions about Bookham's E-Mail service should be directed to postmaster@bookham.com. -- http://www.piclist.com hint: The PICList is archived three different ways. See http://www.piclist.com/#archives for details.