Electronics Forum | Mon Mar 13 04:49:59 EST 2006 | Fhail
Hi All, I'm new in PCBA process. Recently in my leadfree production we encountered a missing ring on some of the ring on the board after we ran hem through Wave soldering machine. The board has gone through double reflow prior to the Wave soldering.
Electronics Forum | Thu Mar 23 07:36:42 EST 2006 | Chunks
According to the original article, no. It is formed by the FR4 expanding and then contracting. So cooling it down faster would not help - in theory. We have not gone lead free yet, so take the above with a grain of WML. My question to those that
Electronics Forum | Wed Mar 29 18:20:07 EST 2006 | LD
We are also a high mix/low volume OEM and are running Samsung CP45's with quick change carts on both sides of the machine. We currently average 12 minutes of internal changeover time per run with an average of 17 changeovers/day for 2 shifts. We ty
Electronics Forum | Fri Mar 24 22:03:23 EST 2006 | mika
Hi all, Is there anybody out there who have some experience of Valor Trilogy 5000 in respect of programming/line balancing SMT-lines consisting of Fuji CP6-4's and UIC-GSM's? Our company is seriously thinking about to go for UniCam and their solution
Electronics Forum | Sat Apr 15 19:11:53 EDT 2006 | daxman
If I've been clear, the parts become offset as the XY table moves around, without fiducial correction. It's when it does a fiducial correction that the placement is alright. If the placement is excellent, and I just zip the table around...load posit
Electronics Forum | Tue May 02 12:50:44 EDT 2006 | grantp
Hi, Yeah, it's a nightmare, and we are dealing with suppliers such as Xilinx and many others who have lead times that are now 20 weeks, but they can get you lead parts on 4-6, because they did not plan correctly. Lead free is not something that's ha
Electronics Forum | Tue May 02 15:09:40 EDT 2006 | PWH
Just a few problems you might have to deal with: 1) Your bare boards must be clean and kept clean though-out the process. You could notice handling contamination that might otherwise have been removed in your wash. 2) You will see solder balls a
Electronics Forum | Thu May 04 04:47:28 EDT 2006 | rlackey
Hi Pat, Not going to change, but has changed. We were first notified about a potential change 2 years ago, but as we're such a volume user we could turn around and say no thanks. However as every one else has now changed over on commodity parts &
Electronics Forum | Fri May 05 09:52:52 EDT 2006 | Rob
I think perhaps you should revisit the choice and take another look at Universal Advantis, I-Pulse M2 & M4(low cost Assemblion), Samsung SM320 or CP45 Neo, Contact Systems C5, Fuji XP series, Juki KE2060, and Siemens Siplace. There is nothing wrong
Electronics Forum | Tue May 09 09:07:46 EDT 2006 | eyryren
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