Electronics Forum | Wed Apr 04 12:27:59 EDT 2007 | adrian_nishimoto
We reball hundreds of BGAs a week with the RB-2000 kit from Mini Micro Stencil, Inc. The reball stencils are made of stainless steel and can be used over and over again. We have reballed .5mm pitch parts with .012" balls up to 2400 ball BGAs.
Electronics Forum | Thu Apr 05 07:02:22 EDT 2007 | pavel_murtishev
Good afternoon, Thanks for input AR. Fortunately, supplier can offer us nickel barrier alternative. I will do exactly as you did. BR, Pavel
Electronics Forum | Wed Apr 04 08:45:37 EDT 2007 | meritajs
Hi, colleagues! We only start using pb-free tehnology Our wave have foam fluxer What kind of flux would be best if we will use Sn100 solderbar What is your experience Best regards Peter
Electronics Forum | Tue Apr 10 14:23:46 EDT 2007 | rob_thomas
BTW of aerospace industry FOD videos. They are just so purely made ,yuck. Ridiculous almost Sorry don't know of any source just wanted to vent on topic.
Electronics Forum | Wed Apr 04 16:54:58 EDT 2007 | pjc
Maybe more baking time is needed. Topside board temp too low. Moisture trapped in board. Top of through hole capped by component and trapping flux. http://www.speedlinetech.com/electrovert/electrovert-troubleshooting/index.htm
Electronics Forum | Wed Apr 04 17:40:39 EDT 2007 | davef
Rob: How do you rework blow-holes and pin-holes? PTH plating thickness SB 1 thou or greater. Epoxy is hydroscopic. So, you should control the environment and/or bake the moisture from the boards before soldering. Search the fine SMTnet Archives f
Electronics Forum | Wed Apr 04 19:25:58 EDT 2007 | TB
Dear All, anyone has experienced with thin layer of immersion tin (about 5 microns) on copper pads in term of long term reliability for first or second reliability studies. Any input will be greatly appriciated.. Thanks.
Electronics Forum | Thu Apr 05 11:43:35 EDT 2007 | Colleen
i just did a report on damaged boards from this kind of treatment. Components get rubbed off - sometimes the component just breaks, but often they take pad and track with them.
Electronics Forum | Thu Apr 05 23:12:09 EDT 2007 | Brandon
I have seen these types of defects, but the finger has been pointed at the end of the oven in SMT. Which is also very possible. I like the screwdriver idea. Thanks, B
Electronics Forum | Thu Apr 05 08:57:47 EDT 2007 | ck_the_flip
Which placement equipment in the market can handle boards that are 21" (539.5mm for you fuzzy foreigners) or more?
