Electronics Forum | Wed Jun 08 13:41:56 EDT 2011 | swag
Two thoughts from me: 1)Are you sure the balls are collapsed? Have you looked at the perimeter from the side with a scope? From your x-ray, it appears you are correct in saying they are collapsed as the balls get smaller in a uniform fashion as you
Electronics Forum | Wed Jun 08 13:49:48 EDT 2011 | sonofptolemy
Hello, I am having a problem with HASL PCB's after it comes back from the stuffer. To me it looks like oxidation and it causes poor wetting. This leads to a bunch of problems all of which have different symptoms but the cause is this oxidation proble
Electronics Forum | Mon Jun 13 18:47:56 EDT 2011 | kahrpr
Cracked parts close to the edge on pizza cutters are a common problem. There are a lot of stresses on the board as the blade cuts through the board. Raising the blade height so that the boards are not cut clean through will help. You will have to fi
Electronics Forum | Mon Jun 27 01:34:30 EDT 2011 | samsim
I fully agreed do not CLEAN the NON CLEAN process. However, some customer may request to clean the non clean process; and they willing to pay for it. In order to clean the non clean processes (the residual on the board), you need to consider the comp
Electronics Forum | Wed Jun 29 16:28:06 EDT 2011 | rway
Let's be more specific. Why do you need to clean the boards? I assume it is for testing purposes, probe contact concerns and the like. This is the only economical reason I can think of to clean no-clean flux residue from your assemblies. Before y
Electronics Forum | Tue Jul 05 13:11:46 EDT 2011 | markhoch
Hi Bill, I agree with not cleaning the no-clean. If you're looking for a cleaner because one of your customers is requiring no residue be left on the PCB's, I'd investigate switching to a Water Soluable Process for those specific assemblies. (You'll
Electronics Forum | Tue Jun 28 20:35:16 EDT 2011 | smellew
Hi you can buy the motors individually direct from Siemens or others suppliers like ourselves SME(Surface Mount Engineering)also many other uk & EU dealers(STM, Adopt, AMS,ISS & CPS, just search you'll find them plus many china suppliers, (Left side
Electronics Forum | Tue Jun 28 11:45:27 EDT 2011 | jax
I have multiple machines consisting of a mix of the following: Single beam Lightning head machines (Advantis, Lead Screw) Dual Beam Seven Spindle machines (Genesis, Linear Drive) Single Beam Seven Spindle Machines Advantis, Lead Screw) The vintage ra
Electronics Forum | Wed Jun 29 14:40:12 EDT 2011 | wrongway
Hello All We are currently running 3 universal smt machines one is an advantis lighting head all 3 machines are 2007 we run 2 shifts 5 days a week I have had very little trouble with them or the feeders. we have 2 universal through hole machines one
Electronics Forum | Wed Feb 22 09:15:06 EST 2012 | sarason
I have done some revision work on the UFOS format. But in my research I found that the format has a bit of variation in it on my old YM6021 the component field has 6 digits and the later YM series it has 8, also does the designator comment crash your
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