Electronics Forum | Fri Aug 17 09:35:15 EDT 2007 | karenp
We usually do Solder reworks, and some components that cannot be installed by SMT Machines or Wave solder due to specs or the technology in our company... aur work methods and instruction are always based on designators and are more illustrated to ca
Electronics Forum | Sat Aug 18 11:23:10 EDT 2007 | Learn From U
Hi All, Via X-rays, we found solder voids appear on PTH location, especially on Dimm connectors area. We think this should be related to PCB issue as we found solder unable to fill up the PTH hole during bare board testing at wave soldering machi
Electronics Forum | Thu Feb 21 04:41:37 EST 2008 | mun4o
hi,Toni, we use only FR4.Some of PCB we order in China and Taiwan.With these PCBs we can't any problem.Other PCB we order here in Bulgaria.The problems with voids start last year - we have voids only in PCBs from Bulgarian factory.The process is sam
Electronics Forum | Mon Aug 20 05:53:26 EDT 2007 | erhard
Hello all, we are about to modify a Universal Radial 5 so the machine will be able to insert radial components with lead pitch 3.5mm and 5mm. The 3.5mm components are ELCOs which are getting inserted all the way to the component body so they sit fi
Electronics Forum | Wed Aug 22 21:49:33 EDT 2007 | darby
Steve, I thought these were the same format as the CSM, or very close to it. If so, then your *.BRD file has MNT#, X, Y, R, Nozzle-Skip-Feeder#- LocalFid, Designator, Part. Get rid of the header down to MNT = In Excel parse the file so that you get
Electronics Forum | Tue Aug 21 12:57:49 EDT 2007 | ev
Looking for pointers. We have a semi-automatic SMT Techniques stencil printer. We have had some problems with a recent job. Problems were in the areas of finer pitch ics (paste voids as well as paste shorts and some smearing) in certain locations on
Electronics Forum | Wed Aug 22 09:53:06 EDT 2007 | slthomas
"The question is: should we be looking at the operator? the paste? or the setup?" Yes. ;) Those guys love to brag about their 4 corner height adjustment on those printers. The fact is it's a PITA and shouldn't be necessary in the first place. It's
Electronics Forum | Tue Aug 21 12:54:45 EDT 2007 | cedams
A long time a go I designed Wave Solder Pallets for lead based solders, but having been out of that industry for a number of years I need to design some new pallets for lead free. We used Titanium to support and mask areas of the board and that work
Electronics Forum | Wed Aug 22 17:39:19 EDT 2007 | K
I was wondering if there is anyone out there who is soldering the Luxeon Lumiled LEDs into product. We are working on a product that uses them. They are a challenge in that the are SMT parts, but will not withstand reflow temperatures. The manufact
Electronics Forum | Fri Aug 24 14:15:24 EDT 2007 | clarkk
Ben, I'm not aware of any 'automatic' method to convert PTH footprints to SMT. Typically, many of the components are passives, and there may be a way in your CAD software to change the passives of a common size to a different footprint. That will co
