Electronics Forum | Wed Oct 20 14:24:32 EDT 2004 | Steve Gregory
It all depends where the voids are, and that's tough to do with a transmission x-ray. One needs to be able tilt the assembly at 45-degrees during x-ray, so you can get an idea where the void is. Or, you spend some big bucks for an x-ray laminography
Electronics Forum | Wed Oct 20 14:44:24 EDT 2004 | Steve Gregory
It all depends where the voids are, and that's tough to do with a transmission x-ray. One needs to be able tilt the assembly at 45-degrees during x-ray, so you can get an idea where the void is. Or, you spend some big bucks for an x-ray laminography
Electronics Forum | Wed Nov 10 15:18:15 EST 2004 | Dave G
Let's go for Ugly..... I've used these in the past for attaching connectors to boards and tabbed Transistors to extruded Aluminum heatsinks with mixed results. The concept is great but, in practice there are some headaches to deal with. We've gotten
Electronics Forum | Sat Feb 05 23:54:37 EST 2005 | sms_don
Hello, I found the previous discussion of lead free profiles on 5 zone ovens very interesting. I had the same concerns, but have recently succeeded in creating profiles on a 5 Zone QUAD oven that have eliminated solder splatter or Solder on Gold w
Electronics Forum | Mon Jun 20 09:12:55 EDT 2005 | davef
There's no easy answer. It depends on: * Thickness and size of the PCB in the array. * Means of separation. * Type of component. SMT components are more sensitive to the forces that need to be applied to separate the PCB. * Type SMT device. Ceram
Electronics Forum | Thu Nov 03 10:19:52 EST 2005 | Rob.
Tell me about it, I've set up & run places with placement capacities of 180K & 300K Per hour, and on the other side places with around 2-5KPH (if you ran quick enough between the machines & were nifty with a rubber blade). And I've worked for some o
Electronics Forum | Wed Nov 29 10:10:50 EST 2006 | M. Sanders
I'm sorry, Dave - I didn't make myself very clear. Yes, this space (not really a "gap") is filled with solid solder. For instance, if you place a gull-wing component in solder paste, after reflow, there will probably be a thin film of solidied solder
Electronics Forum | Mon Sep 10 11:12:25 EDT 2007 | davef
Cover tape extender suppliers are: * QTEK Cover Tape Extenders [qtek.com/splicekit.asp] * Smart Splice [smartsplice.com] * SMD Gurteinf�delhilfe [smtservice.com/content/view/23/58/] SMD Gurteinf�dler * Steierform 87-12503 [steier.de/eng/fenster.php?G
Electronics Forum | Thu Sep 27 16:21:03 EDT 2007 | adlsmt
We have two, about 2.5 years old and 1.5 years old. We run all kinds of parts and get about 18K to 20K CPH. The pick accuracy is fantastic so have saved a lot of $$$$ by not having dump buckets full of parts at the end of runs. I could not be happier
Electronics Forum | Thu Jun 05 05:27:13 EDT 2008 | andy1975
Hi, I've been looking into UV cureable conformal coating and the UV ovens but a chemist I know is very negative about this. He suggest by heating standard conformal coating to 90deg for a couple of minutes will make the product good enough to handle
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