Electronics Forum | Fri Oct 14 14:09:19 EDT 2005 | bschreiber
Your problem is not the 0.4 pitch. Your problem is the manual cleaning. Manual cleaning will only remove the solder paste from the surface of the stencil. What's more, manual cleaning will force additional contamination into the 0.4 pitch apertures
Electronics Forum | Tue Oct 11 13:25:41 EDT 2005 | Sean Jiam
Hi, We just purchased the above two machines and they're still in the trial period. We have problems with air requirements of the above two machines. For example, Samsung CP45 is listed at 8 CFM only, but it will kick off the compressor (rated at
Electronics Forum | Tue Oct 11 19:57:04 EDT 2005 | hly
Hi folks, I had posted this earlier but I think there was some confusion on where the wrinkled joints were. The picture is the side view of a BGA soldered onto the PCB. I was able to take this picture becuase the BGA was at the edge of the board. I
Electronics Forum | Fri Oct 14 03:50:08 EDT 2005 | steve
Alot of folks are going to experience this with their poorly designed desoldering systems. I would check the temperature that is being delivered at the tip of the desolder gun. A small preheater is recommended. The other problem you will encounter is
Electronics Forum | Wed Oct 12 20:53:44 EDT 2005 | mderen
We are currently wave soldering connectors that are held in place by stainless steel screws. About 20% of these screws emerge from the process with varying quantities of solder attached to them. We have just had our solder bath checked and no impurit
Electronics Forum | Thu Oct 13 15:41:30 EDT 2005 | lyrtech
Hi, We have a customer who give us a 20K board contract each year. It's only thru-hole components.The baord is HASL plated. So we pass it into our wave. No problems. Recently, our customer decided to go into GOLD PLATED finish. We take the same re
Electronics Forum | Fri Oct 14 19:03:47 EDT 2005 | fastek
Just remember....people and companies get stuck in their own way of thinking. Ok...so you don't need stencils with this machine. That's a plus I'm sure. The tradeoff is specilized paste cartridges so that saving will be offset somewhat. Speed is the
Electronics Forum | Sun Oct 16 04:23:20 EDT 2005 | olas
I have a couple of questions about the SMEMA conveyor (standard 1.2); I posted the question to them but had no answer. SMEMA says: 5) Maximum gap. The maximum gap between the in-line machine track ends is 0.375� I would suppose this gap refers to th
Electronics Forum | Mon Oct 17 11:01:08 EDT 2005 | ???
Since you asked......lots of binding problems....lots of heater over temp problems (which are easily wired out of the machine). Been to lots of places and almost never saw a heller oven down or being worked on (and seen lots of hellers). Like i said
Electronics Forum | Tue Oct 18 06:04:39 EDT 2005 | Rob
It depends on a number of factors - including as Russ pointed out, complexity (sometimes you need to create very complex profiles if you have large BGAs and other such components, which require at least 7 heated zones), then you have size, required l
