Electronics Forum | Sat May 27 12:50:21 EDT 2000 | Micah Newcomb
Steve, I use homebase apertures as a standard for all chip parts and have no complaints, no solder beading, no issues. I have had to replace almost all stencils ordered previous to my arrival as they all caused defects (7-9mil thickness and 1:1
Electronics Forum | Fri May 26 05:54:40 EDT 2000 | Sal
For the past year now we have been printing adhesive with no real problems. Our printing ranges from 0603's to SOIC using a variation of aperture sizes and metal thickness foils. The crucial parameters are : aperture sizes : These obviously depend o
Electronics Forum | Wed Aug 23 22:31:17 EDT 2006 | darby
Nope, and, Be careful with the "grid" on your stencil for the big centre pad - I could not find the stencil recommendations. I use a similar part by Cygnal (CP2101). Next time I will reduce the apertures by 50% from their suggested layout. We had fl
Electronics Forum | Tue Sep 16 17:56:36 EDT 2008 | slthomas
"....over 3500 apertures in a circuit that is about 1 x 1.5 inches..." 8O Yeah, Larry would definitely be the go-to on this one. :P I would think reducing stencil thickness would be your best bet to avoid that ratio problem, but how durable is a .
Electronics Forum | Fri Jul 23 09:17:30 EDT 1999 | Earl Moon
| Dear Jason, | Smart Sonic has over 500 stencil cleaners in operation around the world. The Smart Sonic Stencil Cleaning Process is the only cleaning process that is Certified Environmentally Safe by the Environmental Protection Agency (EPA) and ve
Electronics Forum | Tue Oct 28 17:15:46 EDT 2014 | grayboard
Hello, I am looking into the use of a Samtec SEAM-50-02.0-L-10-2-A-GP-K-TR on a board. Is anyone around who has experience with this component? Specifically, we are looking for design advice for stenciling and soldering. The component is a sold
Electronics Forum | Tue Feb 16 02:19:29 EST 1999 | Joe
| I am fairly new to the SMT game and I am getting conflicting answers to the following. Maybe someone can help me! When printing, one person is telling me that the stencil should be wiped completely clean of all paste because the quality of the
Electronics Forum | Mon Jan 28 16:48:14 EST 2002 | djarvis
Printing with adhesives is no big deal so don't let the sales types try to mystify the process and convince you that they have the only stencils/adhesives/knowledge that can possibly get you through this "trying time" - at a price. Start with 0.010"
Electronics Forum | Fri Apr 30 10:56:27 EDT 2004 | Bryan She
We tested J6 open on .5mm pitch CSP(In fact,only resistance much lower than normal).J6 is one of the corner ball of the CSP.Defect rate is about 3%. Stencil:4 mil thickness,10 mil square aperture, solder mask openning:10 mil diameter circle. Board fi
Electronics Forum | Tue Mar 03 03:02:17 EST 2009 | emmanueldavid
25% out of Lands in PCB, Insufficient/Inconsistent Alloy deposition which causes for poor Tackiness between Device Spheres & Paste deposited. Also note that Aperture Opening Designs in Your Stencil draws a huge role for these defects. 4. Placement: P
