NOT in the Copper! 3D Animation of a Signal Through a VIA | Yuriy Shlepnev
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- เผยแพร่เมื่อ 15 พ.ค. 2024
- Watch this animation to understand better how a signal is lost when travelling through a VIA. Explained by Yuriy Shlepnev. Thank you very much Yuriy
Links:
- Part 1: Unexpected Currents On The Other Side Of GND Plane • Unexpected Currents On...
- Yuriy's Linkedin: / yuriy-shlepnev-7b39136
- Yuriy's website: www.simberian.com/
Chapters:
00:00 What is this video about
01:14 Example 1: Single ended, no stitching VIA
06:08 Example 2: Single ended, 1 stitching VIA
10:17 Example 3: Single ended, 2 and 6 stitching VIAs
12:43 VIA Analyzer - How far we can place stitching VIAs and how many we need
16:50 Post layout analyzes
21:14 Changing VIA impedance
32:45 Example 4: Differential pair, no stitching VIA
36:10 Example 5: Differential pair, 2 stitching VIAs
48:18 1x VIA + 1x stitching VIA return current
55:20 About the software we were using + Prices
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- Robert - วิทยาศาสตร์และเทคโนโลยี
There is a relevant Dan Beeker quote is actually legendary goes like this:
"Building have walls and halls, people travel in the halls and not the walls, circuits have traces and spaces, energy and signals travel in spaces and not the traces!!" This is actually given by EM legend Ralph Morrison, author of bestselling EM books!! Mentor for many!!
We should be thank ful to Robert for sharing this valuable content since even I am signal integrity engineer I experienced none of the people share the knowledge it’s a good cause
Very good video and thanks for use your time to share knowledge
Thanks for the video.
Great videos man love your work. You pick amazing topics that are extremely relevant!
Thank you Chase
I think this video should have 400,000 views, not 4,000!!! This is such cool stuff!
Thank you Dan. The animations are super useful and could help many engineers. Sadly youtube algorithm doesn't find it very interesting.
This video had interesting and useful technical information, although it makes me fearful and sad for the future of independent PCB designers like myself.
Soon every board will have high multi-gigabit signals that cannot be designed reliably without a 3D field solver, but no individual PCB designer can work hard enough to earn what the 3D field solver costs, so they will go out of business.
At $22K for a single license that isn't going to expire, that means working all day every day just to pay for the software to do your job, with nothing left over to eat or live on.
Only big companies with entire PCB departments will be able to afford the software to design modern products that work reliably with technologies like PCIe 5.0 and the like.
We will be restricted to designing only comparatively simple lower-tech boards, with low profitability.
I think, just seeing these examples will help a lot to design boards which should work ok even without simulations. But yes, it looks like, soon it will be super useful at least to double check if critical interfaces are going to work. PS: I can imagine using this software with a 3 month license - realistically 1 engineer can design 1 or 2 complex boards a year, so it is possible that I may only need it once or twice a year.
The question is if these speeds are needed for most use cases. And what about the rising energy cost? Can we make the analogy with airplanes? Although we could fly faster; because of economy companies tend to fly slower since the 80’s. I think energy will dominate this market in the future. (Like the mobile market already endured) Only thing that worries me is the size of the IC package, as a hobbyist.
As for the prices: it would be much better if an engineer could pay per project. At the end is the most revenue in the masses, not in a couple of big companies which rent the software.
NB: if this is really a necessary product for design, an opensource variant will appear. Like KiCad.
I work in the R&D department of a fairly large company in the Netherlands. Our high speed designs are partly simulated by a third party. For us this is cheaper and they have the knowledge.
@@RobertFeranec True, although a pay-per-use model would be an even better fit to the business model of a PCB designer consultant who never knows what complexity of board they will be asked to design next. With pay-per-use, PCB designers who don't need to run 3D field solver simulations very often would pay far less overall than big companies who are running simulations all the time. However I have yet to see any EDA vendor offer such a pricing model or service. It would be easy enough to implement, especially given today's trend towards all design software being cloud-based. We seem to be stuck with 20th century software licensing models.
But like every other piece of useful software... people will inevitably make open source versions.
Thanks!
That's neat software, perhaps you could do a video demonstration with it of the electrical behavior of stripline models, including edge and broadside coupled embedded differential traces, or did I miss that?
We may do some other examples with Yuriy
hmm, i imagine it would be advantageous to have a 'shielded-via'' design instead of stitching all over the place, is it not manufacturable for some reason?
i think it is not that relevant for redesigning the atari 2600 pcb
Why you always keep interrupting for crying our loud!