Electronics Forum | Thu Apr 11 20:35:22 EDT 2002 | davef
Messy. Messy. Messy. Consider gluing these components, until you control your process. It is unclear to us that a single factor drives these defects, but multiple factors that need to be tuned to work well together. PAD DIMENSIONS * Some SM-782 pa
Electronics Forum | Fri Jun 02 19:42:40 EDT 2000 | Ravi Bhat
One of my customers has asked about concerns, comments, ideas about putting 0402 packages on bottom side of the board. The process will be no clean with reflow/reflow. If anybody out there has some experience or concerns please comment. Regards
Electronics Forum | Fri Sep 27 15:07:50 EDT 2002 | barryg
Genny, you may want to look at the brds you will be running and identify the various packages. I do not know what a standard package is. Most chip resistor and capacitors, 0402, 0603, 1206, 1210's are on 8mm feeders, but ic's vary quite a bit. Also r
Electronics Forum | Wed Feb 27 19:55:13 EST 2002 | nifhail
Hi, I need help to understand further on the via in pad for 0402 requirement. If I were to do the DFM over the brd design which consist of 0402 with via on pad, what is the criteria that I should look for ? I learned that the via in pad does not wor
Electronics Forum | Fri Feb 01 09:34:54 EST 2008 | jdengler
In the PD for 0603 I have a min size of 0.7mm and a max size of 1.0mm and the CP4 size at 0.0mm. This way when you have 1.0mm nozzles in the machine it will use that and when you change them to 0.7mm it will use that. Both sizes work OK. -Jerry
Electronics Forum | Wed Oct 12 08:02:31 EDT 2011 | emeto
It looks like a nozzle size issue. Make sure you have the right nozzle size for the part as well as the right feeder.I think that if the machine takes the parts from the feeders, it can't be feeder problem. Usually parts will jump out of the feeder
Electronics Forum | Mon May 21 04:37:41 EDT 2001 | Bob
Hi, Kris You mean you have checked the tape&component demension,all in spec, But could you tell me the spec of the tape cave size,I mean how about the gap between the cave and component? Do you have such spec.for 0402 Component? Please inform us
Electronics Forum | Tue Feb 04 09:03:45 EST 2003 | Russ Roberts
Greetings, I am pretty new to SMT production, and have learned much from this forum. I am getting ready to build a CCA with many 0402 parts that are really close together. I consider these fine pitch. The board also has two QFPS, so my stencil design
Electronics Forum | Tue Apr 01 11:18:47 EST 2003 | cyber_wolf
Is anyone out there successfully screen-printing SMD adhesive on an 0402 layout? We have successfully done 0603 and larger, but the deposition consistency on the 0402's is just not there. We don't always get enough epoxy on the board. We have tried a
Electronics Forum | Fri Feb 01 08:40:12 EST 2008 | jdengler
Hi AJ, Change ALL 12 of the 1.0mm to 0.7mm. The CP 4 can only set nozzle size for S M and L not some of the 12 but all 12. 0402 usually come in 8 x 2 mm tape so you need 8 x 2 feeders or you will waste 1 component for every component you use. T
