Electronics Forum | Sat Jul 28 08:37:52 EDT 2007 | davef
There is no good choice. Board Finishes: Industrial/Battelle Class 3 Environment [Reliability Knowledge Gaps: For use of Pb-free solders in High Reliability Applications, J Smetana, iNEMI Availability of SnPb-Compatible BGAs Workshop, March 1, 2007,
Electronics Forum | Mon Apr 25 21:52:58 EDT 2005 | KEN
I wonder if yor customer means wrong "flux"? Your not solderng to gold. Your soldering to Nickle. The gold is disolved and dispersed. Your joint strength comes from the SnNi intermetalic.
Electronics Forum | Tue Apr 26 11:22:48 EDT 2005 | denismeloche
I have found that Sn62 solder gives better strength and leach resistance when soldering to gold surfaces. The gold needs to be at least 5 to 10 micro inches thick to prevent nickel oxidation but if over 25 micro inches will cause brittleness. I hav
Electronics Forum | Sat Apr 23 19:31:25 EDT 2005 | molosse21
Hi, Is there a solder paste alloy espacially done to solder components on a pcb gold plated ??? I am using the AIM 297DX SN63/PB37 no clean and i had a comments from my customer telling me that i am not using the right alloy. Personally i never he
Electronics Forum | Sun Apr 24 09:12:00 EDT 2005 | davef
We're not sure what your customer is talking about either. Gold and tin form an intermetallic compound [IMC] that can cause poor solder connections. To minimize the potential of a problem, keep gold to less than 3 percent of the metal. [Search the
Electronics Forum | Tue Apr 26 15:21:11 EDT 2005 | russ
Sounds to me like they are thinking since they have a gold board that it must be processed lead free. This kind of thing is happening all over since OEMs are starting to think about pb free and sending their purchasing and engineering to these semin
Electronics Forum | Sat Aug 02 06:40:51 EDT 2014 | madhuranatha
Will there be any issue if soder paste of SnPbAg is used for airborne application (PCB)
Electronics Forum | Tue Jan 04 13:01:25 EST 2005 | Brad
I have two questions that maybe someone can answer? 1. Can or should lead free components be used with standard 63/37 processes? including sn/pb pcb's? 2. Can or should sn/pb components be used for lead free process? I have recieved mixed feeling
Electronics Forum | Mon Aug 04 23:25:28 EDT 2014 | madhuranatha
Let me thank you for the reply. We are manufacturing products which are fitted on the aircraft. We are using SN63Pb37 solder paste for PCB assembly. Of late one of the solder paste supplier recommended SnPbAg for better solder-ability & reliabi
Electronics Forum | Mon Aug 04 23:27:05 EDT 2014 | madhuranatha
Let me thank you for the reply. We are manufacturing products which are fitted on the aircraft. We are using SN63Pb37 solder paste for PCB assembly. Of late one of the solder paste supplier recommended SnPbAg for better solder-ability & reliabi
Products, services, training & consulting for the assembly, rework & repair of electronic assemblies. BGA process experts. Manufacturers Rep, Distributor & Service Provider for Seamark/Zhuomao and Shuttle Star BGA Rework Stations.
Training Provider / Manufacturer's Representative / Equipment Dealer / Broker / Auctions / Consultant / Service Provider
1750 Mitchell Ave.
Oroville, CA USA
Phone: (888) 406-2830
winsouce.jpg)
