Electronics Forum | Tue Apr 17 08:29:12 EDT 2001 | Geertjan de Beijer
My name is Geertjan de Beijer and I am new on this forum. I have a question about Electroless Nickel/Gold finishes. Until now we always use a HAL finish on our PCB's. Since we are using compontents with pitches of 0.5mm we notice that the HAL finis
Electronics Forum | Wed Jan 24 11:27:54 EST 2007 | bradlanger
We have been using SN100C lead free hasl for over a year now with good success. It is very solderable and has good shelf life. You do have to make sure the finish gets applied to the correct thickness. If the lead free hasl finish is not applied thic
Electronics Forum | Fri Sep 06 17:21:24 EDT 2013 | rodcr
Why do PCB traces need a surface finish? On microstrip (top/bottom) the solder mask does not help
Electronics Forum | Wed Jan 24 10:08:36 EST 2007 | electronhose
Immersion Silver, ImAg, is becoming the finish of preference. This is due to it having similar process limits vs. SnPb HASL. There were some early concerns about shelf life, but new chemistries have extended finish shelf life to 12 months+. Many boar
Electronics Forum | Tue Aug 09 11:57:11 EDT 2005 | Board House
Hi Ted, I am a Sales Manager for a Circuit board Manufacture in MN. We have seen the Majority of our Customer base switch to Enig do to shelf life issues of silver and Tin. Silver, Tin & OSP all have a shelf life between 6 - 8 Mos. Enig is betwee
Electronics Forum | Mon Feb 05 07:02:11 EST 2007 | CL
ASIR, Findings for us so far: OSP- has worked well for us for single sided boards only. We have seen problems with using it on double sided reflow applications. Also, some customers have specified OSP, but are intolerant of exposed copper. Limited
Electronics Forum | Mon Jul 05 03:44:53 EDT 2004 | johnwnz
Dave, I'm going to disagree with you on the ENIG, it's my 3rd choice only just beating out OSP for that 4th spot. 1. Immersion Silver - cheaper than ENIG, as flat and no issues with Brittle interface (black pad) or Gold Embrittlement) Longer shelf l
Electronics Forum | Sun Sep 08 15:07:42 EDT 2013 | davef
PCB designers specify the application of solder mask [eg, varnish, solder stop mask, solder resist, etc] to fabricators to reduce the potential of bridging between two conductive traces during assembly soldering processes [eg, wave, reflow and hand s
Electronics Forum | Tue Mar 15 07:59:07 EST 2005 | mattkehoe
We are looking for some feedback on this situation. Please let us know if you have any ideas. Thanks in advance. I have been doing some studies on defects and such with our PCB's in prep for lead free and I've come to a conclusion about our process.
Electronics Forum | Wed Jun 24 16:51:25 EDT 2020 | kumarb
Hi. Taking this from a total different angle - why not use ENIG to avoid this issue but find more competitive suppliers? We source from offshore all the time and finding that due to this dreaded virus - the market pricing is soft. Many are willing to
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
