Electronics Forum | Thu May 03 01:07:18 EDT 2007 | pavel_murtishev
Good morning, Worth system for 0.5mm or more pitch paste printing. For less pitch (uBGA, 0.4mm etc) framed stencil are preferred due to better tensioning. Main issue with them is handling. Stencil apertures that are used for tensioning might be easi
Electronics Forum | Wed May 16 12:32:34 EDT 2007 | realchunks
Most Durastone product have a very low moisture absorbtion rate. This makes it ideal to water wash them. I wouldn't tlet them soak in the water, but you shoul dbe safe to wash them usinf water. Once the water is used up, you should treat it as a h
Electronics Forum | Fri May 18 04:40:51 EDT 2007 | gregoryyork
Wash them in Saponifier frequently at around 40C rinse and dry thoroughly. I would imagine it could be going white if you have a resin system in the flux that is not water soluble. Ensure you are using suitable pallet material up to 300C for Lead Fre
Electronics Forum | Wed Aug 22 11:22:42 EDT 2007 | 18424
Hi all, a while back someone was asking about a board wash and several people were looking for one. The Company I work for is getting rid of an AQ-400 wash, very very cheap. If anyone is interested please drop me a line. Brad_Court@Onsetcomp.com Loo
Electronics Forum | Wed Sep 05 13:14:25 EDT 2007 | sueph
Thanks for the reply Dave. We send out a solder sample for analysis every 30 Wave Solder days. At this point I am not sure how many of these boards will be done in that time frame. Might to be a good idea to send the sample off sooner if a large qu
Electronics Forum | Sun Oct 28 08:32:47 EDT 2007 | davef
With a 7 thou stencil, we'd go 1 to 1. So for a more typical 6 thou stencil, we'd bump the aperture area by 1.15, maybe 1.2. We make no distinctions between 'innies' and 'outies'. Are you talking about castellations on land grid devices [ie, BCC�, L
Electronics Forum | Tue Dec 18 16:46:06 EST 2007 | wayne123
In addition to what frank said, I have also just placed the board on the work bench, but instead of trying to hold the board and stencil in place I would make a frame for the board using double sided tape, and after aligning I would tape the far edge
Electronics Forum | Wed Jul 16 10:15:53 EDT 2008 | chrno522
I would like to spend around US $30K - $50K, I've got an offer for EKRA E1 inline Semi Auto for $35K USD but EKRA can't fit the 29" stencil frame. Is this EKRA any good? What is the best machine to buy for my budget? any suggestions is greatly apprec
Electronics Forum | Thu Jul 17 00:22:37 EDT 2008 | jmann30
Manncorp offers brand new high quality stencil printers that hold 29 x 29 frames and sell from $15,000 for batch machines and under $30,000 with inline conveyor. There is no reason you need to spend more then this as these printers have very high acc
Electronics Forum | Tue Aug 12 15:34:37 EDT 2008 | grics
That is very interesting... I am curious though, why wasn't a plain blind rivet used? You probably can, but personally, I would be not want a solder joint holding the frame and the pcb... Mechanical stress on solder joints often leads to not good re
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