Electronics Forum | Fri Nov 14 07:32:24 EST 2008 | davef
Yes, courtyard gives you the space requirement of a component. Sometimes, the working space of a rework tool takes precidence, though.
Electronics Forum | Wed Jan 30 13:17:22 EST 2019 | slthomas
In addition to robl's suggestions, I would look at the footprint on the board to make sure it meets the recommended dimensions. Abnormal layouts, particularly when pads extend under the component too far, can be problematic both by lifting the part
Electronics Forum | Thu Nov 13 22:20:48 EST 2008 | davef
For your pad layout and spacing between components, look here: http://portal.ipc.org/Purchase/ProductDetail.aspx?Product_code=77b562c1-b8f8-db11-8a6a-005056875b22 For your standoff height in SMT, we do not concern ourselves with standoff height. It
Electronics Forum | Fri Jan 12 15:35:05 EST 2024 | madisreivik
On my CP642 I got narrow camera for 0201 parts. My question: some thick (2mm+) 0805 components look blurry. Is there a part height limit for the narrow camera ? I noticed that some parts predefined from previous owner were made to wide camera, alth
Electronics Forum | Tue Dec 04 09:48:43 EST 2001 | davef
Defining the thickness of solder between the lead and the pad, J-001 states "Properly wetted fillet shall be evident." J-001 is available from http://www.ipc.org. Factors that affect this are: * Amount and composition of solder * Amount and compo
Electronics Forum | Mon Feb 21 16:06:10 EST 2005 | MR
I agree w/ JB; the package height definition is crucial. I have had problems w/ this in the past, and found that a resistor height was being used as a universal passive height for the capacitor in question. Properly defining the height fixed the pro
Electronics Forum | Fri Mar 16 08:01:53 EDT 2007 | ck_the_flip
SAC coated leads on certain components require more dwell time. If you find that you have top-side wetting issues, slow the conveyor down a bit or increase your wave height, or, a combination of the 2.
Electronics Forum | Wed May 17 12:22:54 EDT 2000 | JAX
Ramot, Without further explanation everyone here is just taking stabs at it..... Sounds normal, I'm game! Have you looked at board finish(HASL?)?? Measured paste height?? Are they always off in the same direction? If not, Handling?? What are the sp
Electronics Forum | Thu Apr 28 12:23:14 EDT 2005 | Rob
Have you checked the placement height? it will need to be set down to about 0.5mm - 0.6mm, whereas you can get away with 0.9mm for 0603. Not a Panasonic expert but I've seen this nearly every time a customer has taken the step down. Cheers, Rob.
Electronics Forum | Mon Jul 06 18:00:16 EDT 2015 | jwqc
Does any one know how to calculate BGA height change after reflow oven? I guess the calculation will be based on the component size, weight, ball diameter and ball count of the BGA, but how to get the actual height?
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