Electronics Forum | Fri Mar 01 17:03:15 EST 2002 | davef
J-STD-001 states the requirements for determining and preserving solderability. J-STD-002 defines the proper test methods and equipment.
Electronics Forum | Mon Apr 17 16:17:47 EDT 2000 | Dennis Fall
Typically, Sn/Pb solders are used to preserve solderability on leaded and leadless SMT components. Are other finishes (such as those used in PCB manufacturing e.g. Sn, NiAu, OSP's, etc.) frowned upon by PCB stuffers and their customers? I am intere
Electronics Forum | Wed Aug 09 22:00:44 EDT 2000 | Dave F
Hey Charles!!! Where in earthly heaven did you get a TO263 with "large solderable tab (approx 8mm square) on the back and 5 leads"? All the TO263s that�ve reached-up and smacked me have been "TO220s" with a modified tab and three leads that are f
Electronics Forum | Sat Oct 06 08:42:21 EDT 2001 | davef
Please give us additional background on your board, solder, process, etc. If you are talking about black pad in ENIG solderability preservative, check the fine SMTnet archives to get started.
Electronics Forum | Fri Oct 14 16:51:46 EDT 2005 | GS
It stands for Elettroless Nikel Immersion Gold, a kind of PCB finishing Entek (there are several kinds) is a brand name of an OSP (Organic Solderability Preservative)kind of PCB finishing. Regards............GS
Electronics Forum | Sat Oct 15 15:57:11 EDT 2005 | GS
Organic Solderability Preservative, is a definition that you can find, for istance, on IPC-2221A (geneiric standard on printed board design) Tabel 4-3 (Final Finisch, etc) Regards............GS
Electronics Forum | Tue Dec 21 08:33:54 EST 1999 | Nancy V
Luis, Go to the library on SMTnet and you will see Standard and Terms. Select that and you will be able to download the terms and definitions for SMT assembly. It is very useful. Of the terms you requested, only FPY is not there. I was curious a
Electronics Forum | Thu Aug 31 21:15:46 EDT 2000 | Dave F
From the SMTnet Library try: http://www.merix.com/resourcecntr/papers/osp.doc http://www.merix.com/resourcecntr/papers/hasl_alt.doc http://www.itm-smt.com/articles.html * "Organic Solderability Preservatives" * "OSPs - Better Living Through Modern Ch
Electronics Forum | Thu Sep 03 14:21:29 EDT 2009 | davef
Creeping corrosion occurs on bare metal. Most commonly, it is seen on boards with thin protective coatings [eg, bare copper, immersion silver, organic solderability preservative]. Look here: * enthone.com/docs/AlphaSTARCreeping.pdf * circuitree.com
Electronics Forum | Wed Dec 06 09:09:54 EST 2017 | davef
Suppliers have improved the utility and quality of OSP [organic solderability preservative] solderable surface protection over the years. Be cautious reading too much into older SMTnet [and web in general] conversations about handling OSP. When prop
