Electronics Forum | Wed Jun 22 11:38:21 EDT 2011 | SBecmpe
I have purchased step up and down stencils for specific situations. What do you mean by "Patchwork"? Is this a rework process?
Electronics Forum | Fri Feb 05 02:40:40 EST 2021 | victorzubashev
For components with the large pads, you can also use secondary soldering dispensing. Some printers like DEK have an option to mount a syringe with an auger valve to do dispensing after the printing step process. Obviously will not work if you have to
Electronics Forum | Mon Oct 10 17:47:10 EDT 2005 | jhagve
hi We start to make a product which have a 0.4 mm pitch IC and start having problems with not enough solder printed, to solve this problem we had to increase the manual cleaning, now we are cleaning the stencil every 8 printings, before we was runnin
Electronics Forum | Tue Oct 11 10:49:14 EDT 2005 | jhagve
HI We start to make a product which have a 0.4 mm pitch IC and start having problems with not enough solder printed, to solve this problem we had to increase the manual cleaning, now we are cleaning the stencil every 8 printings, before we was runnin
Electronics Forum | Fri Oct 14 07:56:32 EDT 2005 | davef
On understencil cleaning: * It's a good idea to do this to reduce printing defects, as you say. * We clean dry. * Our cleaning frequency varies acording to product, maybe ranging from 10 to 20 prints, averaging around 12 to 15. * As long as cleaning
Electronics Forum | Fri Oct 25 18:03:46 EDT 2002 | soupatech
Russ, that makes sense, thanks. As for the 20x20... I was speaking with a sales rep who was trying to talk me into buying stencils from him. I told him I use "Fuji 4000" and he sent me quotes for 20x20 and 29x29. That seems odd since the Fuji 4000 st
Electronics Forum | Fri Sep 06 11:29:03 EDT 2002 | genny
We are a company that designs a product but gets the PCB fabricated and the surface mount assembly done out of house. The product then comes in house and we test it, do some final assembly on it, and ship it. We recently had a prototype run of PCB'
Electronics Forum | Thu Jun 12 11:11:45 EDT 2014 | emeto
What you need here is a double print process. You should have 5mil stencil for SMT followed by a 10-15mil stencil for TH. I don't know what quantities you are running or do you have the capability to add another printer in the line, but that would be
Electronics Forum | Thu Jun 12 17:52:37 EDT 2014 | jorge_quijano
Update 6/12 After solder preform (SAC303 0603) I did not get good result... Couple of connectors have a guide pin that does not allow enough space for preform :( I will try with aperture size modification for my next run. What about step up stenci
Electronics Forum | Tue Jun 10 11:44:25 EDT 2014 | patel_daxa29
It is very hard to say by looking at picture(solder joint quality).Overall appearance looks good.If you think is not sufficient solder or meeting required standard, enlarge opening of connector on solder stencil. Make all conn. aperture square or in
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