Electronics Forum | Sat Sep 27 10:40:24 EDT 2008 | hussman
Hello all, Just had a problem where the solder paste does not want to stick to the pad, thru the stencil. We have run this board for years with no problem, and this new lot of boards is giving us problems. I know it's a board problem because they
Electronics Forum | Thu Oct 02 17:00:44 EDT 2008 | davef
Is that accurate? If so, what are your aspect & area ratios? [Similar to the JerryS comment above.] * You say, � � and the average height is very high: nearly 200 pct.� => Our troop can make paste that height too. They snap the stencil-off a fast as
Electronics Forum | Thu Oct 30 05:05:08 EDT 2008 | allgood
I havent used it yet but I do find myself keep coming back to it - I have been searching for a decent ERP system for my micro company for years. What I like about it is the way you can export and import just about any data which we need to do as our
Electronics Forum | Tue Oct 28 20:26:53 EDT 2008 | fishingfool
Dominik, Pixel size should not be the main criteria for selecting an AOI. I have a customer that has 2 MVP and they say the solder test are good but part reconigtion is not so good. You also say you need some flexibility on software. I also have
Electronics Forum | Thu Oct 30 15:36:18 EDT 2008 | grantp
Hi, Sounds like your engineer does not know what he's doing. We have developed and built hundreds of thousands of boards with normal square pads for 0402, and we just use a 5 thou stencil with 5% reduction and it works well. Decoupling? What is tha
Electronics Forum | Mon Nov 10 13:27:07 EST 2008 | evtimov
Hi janz, you should be aware of everything. You are going to change subsystem on your machine. How much vacuum you need on the machine? Can you control the vacuum level with your system? Can you control the the system at all? Is it really much more
Electronics Forum | Wed Dec 03 14:17:50 EST 2008 | muse95
I am not disputing that cotton gloves are a good idea. They can help protect a lot of parts and surfaces (if the gloves are kept in good clean condition, that is, but that is a whole 'nother thread topic). The fact of the matter is though, paper w
Electronics Forum | Mon Dec 22 20:16:17 EST 2008 | davef
The first question in solving the "ol' SMT component loss after second-side wave operation" problem is: So, what makes you think the components actually came-off in the wave and not during some previous 'handling'? Putting that aside, we'll play thi
Electronics Forum | Mon Apr 06 11:58:42 EDT 2009 | c111
Jeong Ju-young You touched them all up with an iron? Wow! We have also had similar issues. What I did to prove there was a board problem was paste one & reflow one bare board with the same chem (noclean) we saw the non-wetting condition. Then applied
Electronics Forum | Sun Feb 08 18:03:26 EST 2009 | davef
Roland What does this thread in the current issue of SMTnet Express newsletter have to do with SMT? Coating Drug-eluting Arterial Stents Using Ultrasonic Spray Nozzles One proven method used to treat clogged arteries employs tubular, mesh-like met
