Electronics Forum | Sun Apr 01 09:26:13 EDT 2007 | mika
Thanks DaveF, I think the IPC-7525 - Stencil Design Guidelines (which is overall a pretty good guideline) does not perfectly apply in this case. I would rather go for a little bit over print, as for a CCGA; unless I misinterpreted the info. I really
Electronics Forum | Thu Mar 29 08:10:55 EDT 2007 | donjohnson
Thanks Dave... To all that took offence I do apologise, its a fine line that i'm walking here. Accelerated life testing is an integral part of todays development and manufacturing environment. I've spent 3 years living with 50% of my time in a desi
Electronics Forum | Wed Jun 13 08:24:30 EDT 2007 | davef
Most often, when people talk about a dishwasher, here on SMTnet, they're talking about a batch cleaner, not a dishwasher from Sears, or someplace like that. For limited applications, a home use dishwasher will do a perfectly adequate job of cleaning
Electronics Forum | Wed Jun 13 12:45:32 EDT 2007 | rgduval
We use an older industrial dish washer to clean our boards, and it works out pretty well. Economical, at least. I'd like to upgrade to an in-line, but it's not in the budget, yet. We've got ours piped with de-ionized water, and a hot water heater
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 12:54:45 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 Sep 19 17:44:22 EDT 2007 | russ
there are IPC standards, I do not know them all off hand. What are the boards failing for? I have found that sometimes the original design is not optimum for any number of reasons. Some fab shops catch these and correct and may or may not inform yo
Electronics Forum | Thu Nov 08 08:44:22 EST 2007 | aj
Hi, I have just taken a look at the Connector Images. Is there a difference in pitch between both connectors ? From the photo it looks like the Annular Rings are oversized on Image #1 especially around the centre area ( this might be the image ).
Electronics Forum | Wed Nov 14 13:05:40 EST 2007 | rgduval
I had one project with micro-vias in 0805 and larger pads, with no issues. But my most recent project had vias that were larger than the 0402 pads that the via was in. To the point that for a number of the lands, there was no visible pads (a couple
Electronics Forum | Thu Jan 03 08:02:48 EST 2008 | dstevenson
hi all and a happy new year, does anyone know if there are any industry best practices for board design in terms of selective soldering?? Whilst right now the product portfolio of my company is not suitable for the introduction of a selective solderi
