Electronics Forum | Mon May 16 15:29:53 EDT 2005 | jdumont
We have the exact same issue with out 456 ball Xilinx parts. The corner balls either do not touch or are so stretched out that they are intermittant. I believe this to be a moisture ingress problem. Ive been setting up our little batch oven this afte
Electronics Forum | Wed Jun 01 17:23:02 EDT 2005 | fastek
You're kidding yourselves if you think the Chinese don't build quality products. I just returned from a few trade shows in China and believe me they are building reflow ovens, wave solder machines, X-ray and AOI equipment that is plenty good quality
Electronics Forum | Mon Jun 27 08:54:04 EDT 2005 | davef
What is CFM? Look here: * http://bugclub.org/beginners/processors/cfm.html * http://users.aol.com/jackproot/met/spvolas.html How do you measure CFM? Look here: http://www.orionfans.com/html/air_flow.html Anemometers are used to measure air vel
Electronics Forum | Fri Sep 16 06:34:07 EDT 2005 | ajay
We have link fail issue now & could not able to establish. Overall situstion is that oven can not work. we checked all relay 24vac, 24vdc, 110v, 120v, 240v. all looks ok. only issue we ovserve that from B250SSR pin no 3&4 we are unable to get 5VDC. T
Electronics Forum | Thu Jul 14 01:08:30 EDT 2005 | pyramus
I too experience it too component being blown out of the pad also using heller 1800. In my case I also did check entry and exit of reflow so far no obtruction. Also checked profile setting also ok. Mine is a 0603 Chip capacitor... but problem is o
Electronics Forum | Fri Jul 15 06:20:34 EDT 2005 | skandaae@vsnl.net
PLEASE SUGGST ME FOR A PROBLEM CAUSED DURING MY PROCESS In one of the product I am faceing one component tilt after tht reflow oven 1. check the thkickness of the paste found the paste was more reduse the thickness by adujesting the screenprintg s
Electronics Forum | Fri Jul 15 18:21:55 EDT 2005 | dggjr
We have Kester 256 no-clean spec'd as an alternate paste. I bring some 256 in occasionally to make sure it still works as a backup. The last batch I brought in was bridging like crazy. Scraped it off the stencil, put our regular Alpha back down an
Electronics Forum | Fri Jul 15 17:37:11 EDT 2005 | valuems
Hi No I would not... And I felt that if I was going to work on camalot, MPM's and ovens i should have been paid more money. If it wasn't for the money, I wouldn't have worked at all. When I worked for them I felt that I knew the equipment pretty g
Electronics Forum | Wed Jul 20 16:49:44 EDT 2005 | Pete Roy
We have two APS Gold ovens and are acheiving an accpetable Lead Free profile. We still have to further qualify board widths/sizes to determine what are limits are and still be within the profile we need. For the most part you need more zones/longer t
Electronics Forum | Thu Jul 14 19:12:40 EDT 2005 | sync40
Hi. In the past years I had made dozens of PCBs but now I am trying to get a professional finishing on them. The main problem is oxidation of the copper traces. Basically I use the silkscreen method to make the pattern in both layers and then etch. L
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