Electronics Forum | Wed Apr 07 08:28:41 EDT 2004 | Dougie
Hi, We are Scottish manufacturing company considering a move to Immersion Silver finished PWB's from HASL. The driver behind it being the RoHS and WEEE legislation in Europe at present. My question is... We plan on using a Sn/Cu/Ni solder bar in o
Electronics Forum | Wed Apr 07 08:30:22 EDT 2004 | Dougie
Hi, We are Scottish manufacturing company considering a move to Immersion Silver finished PWB's from HASL. The driver behind it being the RoHS and WEEE legislation in Europe at present. My question is... We plan on using a Sn/Cu/Ni solder bar in o
Electronics Forum | Sun Dec 11 22:55:22 EST 2016 | ppcbs
What type of flux is in your solder paste? Active or No-Clean? With lead free solder you really should be using an active flux. The lead free oxidizes during reflow if you are not using a Nitrogen or Vapor Phase reflow. So a more robust and activ
Electronics Forum | Tue Mar 15 17:58:56 EST 2005 | darby
Mat, Are you sure you should be using SnPb HASL boards if you are doing prep for lead free? If you aren't actually going to comply with RoHS then fire away. Nearly all of our assemblies are now ENIG and as any re-design comes up on a HASL board it is
Electronics Forum | Sun Aug 07 21:38:27 EDT 2005 | darby
Get a couple of quotes on ENIG. You may be surprised at the price. HASL, (which is often considered to be the cheapest finish), is now more expensive for us than ENIG due to the extra processes involved.
Electronics Forum | Wed Jul 15 12:20:52 EDT 2015 | dyoungquist
If you are using lead solder (SnPb) HASL is a good choice. If you are using lead-free (RoHS compliant) solder then I would recommend Immersion Gold (ENIG).
Electronics Forum | Fri Nov 16 09:04:40 EST 2018 | robl
and here.... https://smtnet.com/Forums/index.cfm?fuseaction=view_thread&CFApp=1&Thread_ID=9389&#Message37375 Which was in the days of leaded, but the ROHS paste had the same flux formulation.
Electronics Forum | Thu Aug 04 12:40:38 EDT 2005 | Ted
Hi all, I am wondering what everyone is using as a PCB finish for RoHS. There doesn't seem to be a favorite out there. I know there are many companies using a gold finish but I don't want to pay that much and I have also heard about reliability p
Electronics Forum | Wed Aug 19 16:01:47 EDT 2009 | davef
You say, "using Eutectic Solder." * There are lots of eutectic solders. * When melted, a eutectic solder goes directly from a solid to liquid phase with no pasty phase. Do you mean 63/37 tin lead solder? If so, probably your assembly won't be RoHS
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
