Electronics Forum | Mon Jan 11 08:46:51 EST 2016 | deanm
Yes, I agree that finding a vendor that can do fabrication plus the metalwork may be difficult. I am open to those board vendors who have relationships with others who can do the metal for them and then ship the final product to us. There must be so
Electronics Forum | Thu Feb 25 14:52:52 EST 2016 | tombstonesmt
How thick are their requirements? A barrier can be made using peelable latex. That would then require manual or automatic dispense of latex to create a dam. Then you should be able to use an automated dispense system with a large orifice and flood
Electronics Forum | Thu May 26 12:00:21 EDT 2016 | swag
Yes - the frame is built to nominal per print then the tape pieces are placed into areas in the frame as required. I had the stencil house cut #'s into the frames designating each different size. When I cut the tape pieces, I put them on a large, s
Electronics Forum | Thu May 26 12:46:29 EDT 2016 | tombstonesmt
Good work! We have a product we've been using a table top latex masking robot we built in house to mask keep out areas. If we could apply what your doing we can eliminate the buffer of dry time on the masking. Any information you can provide on the
Electronics Forum | Thu Oct 06 12:18:31 EDT 2016 | davef
Looks like moisture bubbling out of the board. I doubt that your baking at 60*C for a half hour is going to do very much to dewet the board. 60*C is warm to the touch, that's it!!! Water boils at 100*C. 60*C is the temperature of a cup of Dunkin. Cr
Electronics Forum | Tue Jan 31 09:41:06 EST 2017 | emeto
If there is no specific quality reason, stay with paste. More processes you add, more points of failure. They don't need a lot of paste to get attached to the board. The ones I used were 8mil round apertures, so I did cut 1:1 on a 3 mil coated stenci
Electronics Forum | Fri Feb 03 15:32:28 EST 2017 | westshoredesign
Not sure exactly what kind of coverage your looking to get but we use Dow Corning 3-1944, it's room-temp cure and rather thick, (think warm honey). But we have found it useful on several projects. http://www.dowcorning.com/applications/search/produc
Electronics Forum | Tue Feb 07 10:25:37 EST 2017 | ttheis
Thanks for the tip. I'm still getting familiar with the machine by reading the manuals as I have time. Was wondering what type of solvent you use to clean the dispensing mechanism parts? Or do you not clean anything and simply dispose of the syring p
Electronics Forum | Wed Jun 14 09:34:25 EDT 2017 | cyber_wolf
In my experience there is no need for wet wiping stencils. We run 0201'and micro BGA's daily with no issues. If you are having paste release issues, I would be looking at other things. Aperture area aspect ratio, aperture design, land design, sold
Electronics Forum | Thu Sep 07 08:45:02 EDT 2017 | dleeper
In my experience with similar sized parts, the nano coatings (or what ever your supplier might call them) do help with repeatable paste release. How are you cleaning your stencils? A big red flag to me is that your stencil worked fine for the first
