Electronics Forum | Fri Sep 15 04:09:15 EDT 2017 | philc
Yageo announced their decision to stop marking SMD resistors back in 2013, and since then we have started to see 0603's that aren't marked, but larger sizes - so far - are still showing a value. 0402's have never been marked, and I doubt they ever w
Electronics Forum | Mon Oct 09 06:16:31 EDT 2017 | jamesbarnhart
I think you needed an IPC Class 3 annular ring because for very dense designs, the smaller the annular ring the better, as less space is taken by the pad or via and more space can be dedicated to routing the traces in highly populated areas of the bo
Electronics Forum | Tue Sep 12 08:39:38 EDT 2017 | jefri_simorangkir
we are turning on the printer, suddenly the printer is off after checking there is solderball on pad capacitor component 0603 our question is what can a solderball stuck on one pad can when melting and causing shortsolder (being connected with other
Electronics Forum | Fri Oct 13 11:23:24 EDT 2017 | jax
Not sure you will find what you are looking for. Everyone is talking about converting the program but I think they are just talking about the x-y information. The problem is in the part/package data. Different Machines require different information,
Electronics Forum | Wed Oct 18 09:45:23 EDT 2017 | alexeis
Hi, You have 2 options: 1. You can pay for a software solutions but it can't do 100% work. You will complete manually a conversion (between 5%-50% based on a complex of your board, type of component and other problems). 2. Do it by your self using E
Electronics Forum | Wed Sep 13 11:08:08 EDT 2017 | emeto
Here are the basics for theta issues in teaching: 1. CAD part library should match machine part library orientation. 2. If your placement orientation is correct and your feeding orientation(orientation in your feeder) is correct, there should be no
Electronics Forum | Wed Oct 25 10:26:02 EDT 2017 | swag
Yea, I always liked to program the way it physically sits in the feeder then rotate as needed in placement. Make sure rotation in feeder is 0 as well or you'll really get confused. Some machine mfg's recommend otherwise but it never made sense to m
Electronics Forum | Tue Oct 10 13:00:10 EDT 2017 | charliedci
My response could be seen as "trolling", if so I apologize. I don't normally respond sarcastically (to posts), but it seems like posters sometimes want answers handed to them instead of doing a little research online beforehand to gather knowledge. I
Electronics Forum | Tue Oct 10 13:30:20 EDT 2017 | charliedci
Here is a link to a reflow profile: http://www.aimsolder.com/sites/default/files/reflow_profile_supplement_-_lead-free_solder_paste.pdf Speaking specifically about solder reflow, the process window should be based on the solder paste you are using.
Electronics Forum | Tue Dec 05 04:30:02 EST 2017 | jan_pedersen
You find good information in IPC-4554 that includes recommended total Sn thickness and recommended free Sn. It refers to how much usable Sn is needed to meet coating durability categories defined in J-STD-003. As example, if you need 6 months shelf l
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