Electronics Forum | Tue Dec 06 15:27:36 EST 2005 | Mike
Steve, You are correct in that X-Ray image of a BGA will not show flux residue. So what? If you are using no clean flux then I would think it doesn't matter if there is some flux residue. Sure if you are reworking a BGA and the operator dumps t
Electronics Forum | Sat Dec 03 08:15:41 EST 2005 | davef
Welcome Here for articles on developing reflow recipes: * http://www.process-heating.com/CDA/ArticleInformation/features/BNP__Features__Item/0,3156,18454,00.html * http://www.smtinfo.net/Db/_Reflow%20Soldering.html * http://www.smtinfocus.com/proc
Electronics Forum | Wed Dec 21 17:46:33 EST 2005 | muse95
Wow - 11,000. We have 8K-9K, and we have had three people working on it for the last 6mos, around their other duties. We aren't done. Some MFR's changed PN's. Some add G, some add LF, some add NOPB, some add Z, Some add a "+", etc. Some have no d
Electronics Forum | Thu Dec 22 08:57:08 EST 2005 | davef
Immersion metal baths also rely on alchemy-like magic. If you take a piece of copper and dip it into an aqueous solution of silver ions: Presto Chango! Within seconds the copper will be coated with silver. Of course, there is some additional magic re
Electronics Forum | Tue Jan 03 06:51:50 EST 2006 | Slaine
Is this a new design or have you manufacted these in the past without a problem. we manufacture ceramic arrays from X7R and COG, X7R has a differnet dialectric strength so higher capacitor values can be achived. With the introduction of RoHS the term
Electronics Forum | Thu Dec 29 09:20:30 EST 2005 | Cmiller
We have tested SN100C and SAC305 in our selective solder machine (Ersa Versaflow). We wanted to test both alloys in the selective first because the investment in filling the pots is minimal. In our initial tests the SN100C alloy appears to be the bes
Electronics Forum | Thu Mar 16 10:55:23 EST 2006 | Baer
I can tell you that I have been involved in new process chemical introductions for 40 years. I have seen a lot of claimes and this is one of the best inovations I have seen. If I was not convinced of this I would not be involved. As for process impr
Electronics Forum | Sun Feb 05 08:41:15 EST 2006 | Cmiller
Are you refering to reflow soldering or wave soldering? Brian, do you have any data to support that SAC305 is more reliable than Tin-Copper-Nickel? NEMI reccomended SAC type alloys for reflow and Tin-Copper for wave. See: http://circuitsassembly.
Electronics Forum | Mon Feb 20 15:03:56 EST 2006 | davef
Q1- Will we be able to select the materials (flux and alloy) and run the process depending only on ourselves, distributors� help, machinery documentation, web data and �trial and error?� A1- Your materials suppliers [eg Kester, Alpha Metals, etc] wil
Electronics Forum | Thu Mar 30 07:44:06 EST 2006 | samir
Is your customer hands-off when it comes to what type of process materials you use on their assemblies?? In the world of Contract Manufacturing Hell, you'll have a mixed bag of customers...some, who don't care what materials you use - after all, YOU