Electronics Forum | Tue Mar 13 17:29:18 EDT 2007 | Oswaldo Rey
I placed a Maxim MAX16810 38 pin TQFN with a power pad ground on the bottom of the chip on a prototype board FR4 doble sided. Vias of 0.6 mm where placed underneath part, 6 vias in total. Solder was placed with an air operated syringe, land pattern w
Electronics Forum | Mon Apr 30 00:49:07 EDT 2007 | Ron Rumrill
Let me chime-in regarding impact pressure. By definition, impact pressure is determined by several factors: 1. The weight of the water (a constant) 2. Its velocity (determined by the GPM and nozzle�s orifice size) 3. The area impinged (determined
Electronics Forum | Sun Mar 09 09:15:21 EDT 2008 | davef
Q1. What kind of labels/ink/sharpe can be used under conformal coating without disolving etc...? A1. While we're not familiar with the conformal coat you have selected, this might help. Label selection: The following chemically durable materials are
Electronics Forum | Tue Apr 15 15:10:28 EDT 2008 | markhoch
We currently are using an older Electrovert Convection 7-Zone reflow oven for our Lead-Free assemblies. It has a maximum per zone Temperature setting of 280 Degrees C. This is causing an issue with one particular customer who has a fairly dense produ
Electronics Forum | Wed Aug 13 09:50:32 EDT 2008 | diesel_1t
Hi dave, thanks for your reply I tried to locate "Techni-Tool 872M1034" on the webpage but I found: https://webvia.techni-tool.com/VIA/viaImagePageIndex.jsp?row=3&pgName=viaListProducts.jsp&searchText=CH8C&modifier=CH8C&reqTitle=TITLE_VIAUSERDOCLIST
Electronics Forum | Tue Aug 26 15:39:49 EDT 2008 | kpm135
I am not positive about this but I have been told that you cannot use acrylic and urethane coatings in systems that have had silicone run through them. It was explained to me that you can never fully get the silicone out of the existing system and th
Electronics Forum | Fri Dec 12 22:41:27 EST 2008 | split63
I'm looking to purchase a used pick and place machine. A machine like the Samsung CP20 or CP45 is about right. I don't know what the equivalent machine is with the other major vendors such as, Fuji, General, Philips, etc. In general this would be
Electronics Forum | Thu Feb 12 15:32:15 EST 2009 | gtemkin
A few other data points to consider. My experience working with Dymax 984LVF material was that its UV cure must be initiated immediately after coating, otherwise is surface will remain tacky forever, something like a post-it note tackiness, which wi
Electronics Forum | Fri Oct 09 10:57:25 EDT 2009 | clampron
Omid, I have used the DRS24 for many years and have had similar problems with what you are talking about. I do not have any documents but I will tell you what I have seen. It sounds like an inconsistant collpse of the BGA. If one side of the BGA col
Electronics Forum | Fri Feb 12 11:45:14 EST 2010 | ppcbs
Greetings, > > We are looking to purchase > equipment to rework / repair our circuit boards > with BGAs. Our newer boards are starting to have > more and more BGAs. > > Is there any information > that "ranks" BGA rework stations? - a kind of a
