Electronics Forum | Fri Aug 28 08:52:13 EDT 2009 | duso02
Yes, you must thin Dow CC for any spray operations. We use Dow 2577 daily for multiple customers and we always thin it for spray operations and 2577 is considered medium viscosity. Dow recommends using up to 60% solvent (Xylene). Your 2620 is low vis
Electronics Forum | Thu Aug 27 10:22:59 EDT 2009 | dwl
We have an opportunity to purchase a Yestech YTV-1000 AOI machine. I am looking for opinions on how well they work and how they compare to the newer Yestech B3 AOI systems. We are a high mix, low volume EMS company. We do not currently have any exp
Electronics Forum | Mon Aug 31 07:56:39 EDT 2009 | d0min0
Hello, since some days we are facing strange problem with SMT component reflow paste on one side of the component is reflowed correctly while the other side is 10%-70% non-reflowed (same component on 3 positions per module, alwyas the same land pad)
Electronics Forum | Wed Sep 23 03:43:31 EDT 2009 | d0min0
hello, we are profiling with the pcb each day - results are very good with a small delta we made another test board with TC only in the problem places - same good result we tried 500-600 boards on 12 zone machine - zero defects while on standard 6
Electronics Forum | Mon Aug 31 21:47:56 EDT 2009 | davef
In response to your question: 3 Saponifier / non saponifier 3a Saponifiers: * Aqueous Technologies: PCB-Wash http://www.aqueoustech.com * Kyzen: XJN http://www.kyzen.com * EnviroSense: Enviro Gold #816 http://www.envirosense-inc.com 3b Non-Sapo
Electronics Forum | Wed Sep 02 02:45:01 EDT 2009 | rocko
Hi All, Let me summarize the key facts and findings: 1) This is not a permanent problem. Only one production batch was affected. The cleaning solution was exchanged and now the cleaning process runs normally. 2) Probably the residues are not ion
Electronics Forum | Tue Sep 01 12:47:37 EDT 2009 | rodrigo
Hi all, Our IPII just developed yet another issue. The PCB goes in the conveyor and when in the loader, the lifter goes up and after a few seconds I get a lifter cycle alarm error. I checked the in/out screen and when I make the lifter go up, the se
Electronics Forum | Thu Sep 03 10:14:01 EDT 2009 | bk
Probably you can weld the spot that is leaking as a temporary fix.As for a long term solution, I would probably go with a lead free retrofit kit.It is basically a titanium insert that you place into your existing pot and it is cheaper then buying a n
Electronics Forum | Thu Sep 03 12:03:52 EDT 2009 | Sean
Hi All, I have few questions about creeping corrosion that potentially happen on lead free immersion silver PCB as below: 1) What test that we can conducted to verify whether the failure we seen is due to creeping corrosion? 2) I heard that lead fr
Electronics Forum | Fri Oct 09 13:37:55 EDT 2009 | tstrat
We are seeing similar issues. We have a board that consistently has failures on a BGA part. After SEM/EDS it was shown that the fractures were occurring between the Ni-P and Ni-Sn intermetallic in the ENIG finish. The element map showed elevated conc
