Electronics Forum | Mon Feb 12 13:01:09 EST 2007 | campos
Hi all,, I running SMQ230 solder paste with a time above = 40sec with peak temperature = 239 degrees .. the complete reflow takes almost 6 min with a slope (150to190) close to .60 degrees/sec .. may I have some concern about that or it's ok?? tks..
Electronics Forum | Thu Mar 01 14:54:45 EST 2007 | slthomas
By used to you mean scraped from stencils and bucketed? If that's the case I'd check with the guys that recycle my dross. That's who did ours when we had volumes that justified it. Now we have so little it goes into the hazmat hamper with everything
Electronics Forum | Fri Mar 30 23:09:30 EDT 2007 | mika
We have now ordered a another stencil with square apetures with 20% overprint just because it is so difficult to get the solder paste to stay on the pcb pads without to get it stuck within the apertures. We have set the print speed down, the separati
Electronics Forum | Mon Apr 30 16:07:20 EDT 2007 | vlad_uk
Hey Basam, What sort of production do you have and what size boards, changeovers etc. The politics is irrelevant to the best machine for your production environment? Mydata's are not the only option and the Used market is full of good alternatives,
Electronics Forum | Wed May 02 06:28:26 EDT 2007 | LC
In our first run, we actually followed the solder paste recommended profile then we were told to use the BGA recommended one. When we had the 2nd run we still got the same problem. We're using Kester 909HPS (lead free) and ENIG boards. Thanks.
Electronics Forum | Mon Jun 11 09:15:46 EDT 2007 | rgduval
Steve, I'm trying to. I don't like the manual printing, in general...it works for us with short runs, etc...but, in general, I don't like the non-repeatability of manual printing. If the right deal comes up, I may be able to justify it. In that c
Electronics Forum | Tue Jun 19 07:20:43 EDT 2007 | sami
Dear Fastek. For the Front panel board we are using multible ( 4 boards in one PCB. even thought the balance between the DEK printer and the placers still big 6 sec as a difference. But, may be this is a good idea for the main board? may be also it's
Electronics Forum | Thu Sep 27 14:47:33 EDT 2007 | kpm135
You could try taking a look at the jet printer from MYData. http://www.mydata.com/MYWEB/Corp.nsf/$all/C7BD0068DB97D290C12571E80052A528 I have no idea about price or how well it works but it sounds like an interesting replacement for stencil printing.
Electronics Forum | Wed Oct 31 04:37:15 EDT 2007 | aj
Hi, My oven has 5 zones each 12 inches in length , giving a total of 70 inches Heating Zone in total. I am working with a 6 layer PCB ,ENIG Finish. I am using Alpha OM338T no-clean Solder Paste. I am working to a cycle time of 4 to 4.5mins RTS p
Electronics Forum | Fri Nov 02 07:20:43 EDT 2007 | hussman
Why look at buying expensive equipement when you can have your board house multi-up a panel of boards for you. You just saved at least $150,000 American, didn't have to re-evaluate any solder paste, and even opened your process window on your oven.
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