Electronics Forum | Wed Aug 20 21:30:56 EDT 2003 | paulm
Our company if currently reviewing our BGA Screen Printing Process. The problem we are trying to eliminate has to do with BGA Ball Size Variance. Some of our vendors are allowing a +/- of 0.004" in ball size. This would allow for the possibility of a
Electronics Forum | Thu Jan 18 19:16:42 EST 2001 | slowe
I am having problems with D-Packs shifting during reflow. Does anyone know of a good aperture design to solve this problem ? Possibly bow tie.
Electronics Forum | Fri Jul 09 11:19:58 EDT 1999 | Carol Brumfield
Has anybody successfully used an automated dispensing system to put solder paste dots on .5 mm pitch pads?? I need to replace some Meritec tsop sockets and I don't want to use the single site stencils for .5 mm parts.
Electronics Forum | Mon Dec 09 10:40:31 EST 2002 | MA/NY DDave
Hi I can image too many images for what your product or your process looks like. Think about hiring a consultant to come in and really look at things. YiE, MA/NY DDave
Electronics Forum | Mon Jun 02 02:24:08 EDT 2003 | star7483
hello, everyone. splice tape and stencil clean wiper and various label, which cheap and top quality. if you have interest in reselling abroad, contact with me. name: rosy. email: star7483@163.com
Electronics Forum | Mon Oct 13 19:04:47 EDT 2003 | davef
Aperture size should vary with the component [pitch]. That size should be the same a the pad size. So, generally pinching is not required. Indium discusses BGA apertures on their site [ http://www.indium.com ]
Electronics Forum | Mon Oct 27 09:54:40 EST 2003 | John
We're just now beginning to see 0402's in our designs. Can anyone make recommendations on stencil/aperture designs and print parameters? I'm seeing skips on a small number of joints on these parts. Thanks in advance, John
Electronics Forum | Wed Nov 09 05:18:15 EST 2005 | pavel_murtishev
Good day, So, only material supplier recommendation is the basis for solvent selection. Am I right? BR, Pavel
Electronics Forum | Wed Nov 09 07:22:28 EST 2005 | davef
No. Aqueous Technologies, Kyzen, Petroferm, Zestron, Alpha Metals and many more companies have tested their chemical for use with many different production materials and should be able to discuss the effectiveness of their chemical. Beyond that, ma
Electronics Forum | Thu Nov 10 10:03:51 EST 2005 | C
Wow! that's amazing!, so you spray both sides, you wait for 2 minutes, and then you wipe everyting clean, and you do all this in 2 minutes, fantastic!
