Electronics Forum | Thu Jul 10 09:55:47 EDT 2003 | davef
A reading of the pictures is: A1: Looks like pad [B1] is smaller than the other pads. It�s weird that the pads are such different colors. A2: Looks like pad [B1] is smaller than the other pads. Solder mask opening [B1] is misregistered and seems s
Electronics Forum | Wed May 09 03:29:16 EDT 2001 | Eyal Duzy
Yes, your observation is accurate. Different process steps have different inspection requirements which necessitates employing different imaging technology to ensure the best performance (detection and throughput). Orbotech, for example, offers both
Electronics Forum | Tue Jul 30 17:51:18 EDT 2002 | davef
Comments are: * Peak at 245�C for 40 sec seems like a very long time. I�d expect the time at 245�C to be 10 to 15 sec. This long time at peak could dewett the pads. * Really, their 2D vision on the printer can verify solder presence? * A thin coat
Electronics Forum | Tue Apr 10 16:41:21 EDT 2001 | slthomas
OK, you're talking about inline AOI doin' all the work for you, for a price. Fair enough. If you can't afford the inline post-print inspection equipment, though, I still think you can depend on the 2D inspection of the paste to tell you if you've
Electronics Forum | Wed Aug 30 07:34:23 EDT 2006 | Xray Tester
For Automated x-ray inpsection system comes in 2D and 3D. 2D also know as the transmission xray inspection where xray are generated from a fixed point source. On double side board, this does not work that well. That where 3D Automated x-ray inpsectio
Electronics Forum | Fri Mar 14 17:41:32 EDT 2008 | jerrysaise
Hello Before I say anything. Here is one caveat, I work for a 3D paste inspection vendor, I will not mention which. So you can take whatever I say with a grain of salt. Paste inspection will make a difference if you want to put the effort into it ma
Electronics Forum | Tue Jul 17 17:15:39 EDT 2001 | vance66
On a related note...... I'm wondering if anyone has any experience with 3D inline solder paste inspection systems. I've read about all the features and what they are "supposed" to do. What are the real-world capabilities of these machines?
Electronics Forum | Fri Dec 28 11:33:36 EST 2007 | realchunks
It really depends on several things. Is solder paste inspection driven from the customer? Do you have a lot of time and bodies to do solder paste inspection? Does it add value to your process? If you answered �Yes� to any of the above, then you a
Electronics Forum | Fri Dec 28 17:44:41 EST 2007 | flipit
Back in the mid 90s I used an SVS 3D solder paste inspection system. We used it as a stand along unit but it was an inline model. We would bring printed PCBs off the Dek 265 solder printers and check every 5 or 10 printed panels. They almost alway
Electronics Forum | Fri Oct 07 09:00:03 EDT 2011 | blnorman
2D codes take up much less real estate so that might work. Something else we did was to go to CO2 lasers and mark directly into the solder mask. Underlying copper gave adequate contrast to the green mask. Much more of an investment, but works grea
