Electronics Forum | Thu May 29 14:35:37 EDT 2008 | rdmundo
Gents, We've been using a round 1:1 aperture for a 5 mils thickness on our stencil design on 0402 and recently, IPC guidelines recommend oblong, homeplate or reverse homeplate. I believed the PCB pad for 0402's area within the recommended size/dimen
Electronics Forum | Thu Jul 20 14:05:59 EDT 2000 | Mike McMonagle
With 0402 components becoming more common today outside of the telecommunications industry, our company is qualifying equipment and processes for an upcoming product incorporating 0402s. Having used 0402s in a previous position, I am planning a DOE o
Electronics Forum | Thu Jul 20 14:57:26 EDT 2000 | Bob Willis
I have just measured my new test board and the dimensions are 0.025� square, 0.015� seperation with resist aperture 0.004� larger. Don�t know when I will be using it yet. I have not seen a head to head with these pastes yet, I know that Panasonic ar
Electronics Forum | Mon Sep 20 16:46:47 EDT 2004 | cristiano
Do you have any information about the best standart for 0402" chip pad design. I have found differents recomended dimensions from IPC standart and manufacturer(AVX) . Which should be the best one? Thanks
Electronics Forum | Tue Oct 02 07:23:37 EDT 2001 | cath
Has anyone caried out a DPM analysis on these components. I would be interested to know the defect rates and other assoc. placement issues as we have never placed them before. Thanks, cath
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 May 23 12:18:59 EDT 2003 | vortex
First off is your CP4 0402 ready? Before we could begin placing 0402's we had to have a vision upgrade. Once you have that or are sure your machine can handle 0402 then you will have to get 8x2 feeders. There may be a way to rig an 8x4 feeder but i'm
Electronics Forum | Fri May 23 07:07:39 EDT 2003 | qp1
Please your comments for placing 0402 on CP4? Which are the difficulties to expect and how to threat them? How to adapt the feeders for the smaller interdistance of the tape?? Thanks
Electronics Forum | Wed Jul 14 21:34:16 EDT 1999 | karlin
| | | | | Hi, | | | | | | | | | | I need some urgent informations on stencil design guidelines on how to perform epoxy printing on 0603 and 0402 components. Could anyone help? ( Reflow process is not possible because of some other constriants) | |
Electronics Forum | Tue Jul 13 14:19:00 EDT 1999 | JohnW
| | | Hi, | | | | | | I need some urgent informations on stencil design guidelines on how to perform epoxy printing on 0603 and 0402 components. Could anyone help? ( Reflow process is not possible because of some other constriants) | | | | | | Sec
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