Two-Layer PCB Design Tips: Achieving the Optimal Layout

Рет қаралды 8,900

Күн бұрын

Learn the secrets of Two-Layer PCB Design with this expert guide from Tech Consultant Zach Peterson. This video dives into the fundamental techniques and strategies essential for achieving an optimal layout in your two-layer PCB projects. This tutorial covers everything from proper grounding and routing to maximizing board efficiency and performance.
Follow along as Zach explores practical examples, demonstrates effective design practices, and answers your most pressing questions.
0:00 Intro
0:35 Example Two-Layer Boards
4:18 Ground Pour for Digital Signals
6:31 Orthogonal Routing, Return Paths & Power
14:56 USB Interface?
17:24 Putting It All Together
For more PCB Layout videos, click here: • PCB Layout
For more PCB Design for Intermediate Users videos, click here: • PCB Design for Interme...
For more Tech Consultant Zach Peterson videos, click here: • Technical Consultant Z...
🖥️ Can You Route USB 2.0 on a 2-Layer Board?: • Can You Route USB 2.0 ...
🖥️ Routing Requirements for a USB Interface on a 2-Layer PCB: resources.altium.com/p/routin...
🖥️ Can You Route Digital Signals on a 2-layer PCB Design?: resources.altium.com/p/can-yo...
🖥️ The Most Common 2-Layer PCB Design Mistakes and How To Avoid Them: • The Most Common 2-Laye...
👉 Exclusive 15 Days Free Altium Designer Access: www.altium.com/promotions/alt...
Don't forget to follow us on social to stay up-to-date on the latest Altium Academy content.
👉 Follow Altium on TikTok: / altiumdesigner
👉 Follow Altium on Twitter: / altium
👉 Follow Altium on Linkedin: / altium
👉 Follow Altium on Facebook: / altiumofficial
👉 Ready to try the industry's best-in-class design experience yourself? Download it today and get started! www.altium.com/downloads?utm_...
The Altium Academy is an online experience created to bring modern education to PCB Designers and Engineers all across the world. Here you can access a vast library of free training and educational content covering everything from basic design to advanced principles and step-by-step walkthroughs. Join industry legends as they share their career knowledge, review real-life design projects, or learn how to leverage one of Altium's leading design tools. No matter your level of experience, the Altium Academy can help you become a better Designer and Engineer!
About Altium LLC
Altium LLC (ASX:ALU), a global software company based in San Diego, California, is accelerating the pace of innovation through electronics. From individual inventors to multinational corporations, more PCB designers and engineers choose Altium software to design and realize electronics-based products.
#PCBDesign #TwoLayerPCB #CircuitBoard #ElectronicsDesign #PCBLayout #DIYElectronics #HardwareDesign #TechTutorial #Engineering #CircuitDesign

Пікірлер: 20

@fedimakni1200 3 ай бұрын

Regarding the last part when you mentioned the PCB that will be mounted on the top of another one, if we use a switching regulator on one board, can the switching affect the other PCB on the top of it while operating? Topics for next videos: - PCB certifications and when we really need them - PCB design for underwater application - PCB design for harsh environment (very cold weather and if we can tolerate temperature rise in that case) - Creation of passive components (cap - res - inductors) from PCB trace and how to measure their electrical properties

@jozo314 3 ай бұрын

I'd love to see this too

@venom_ftw9316 3 ай бұрын

Definitely interested in these topics

@venom_ftw9316 3 ай бұрын

Definitely interested in these topics

@marcdraco2189 18 күн бұрын

I really enjoy these Zach (I missed this one which is bad of me) and I'll say it again, thank you for that Tee-shirt. I can't afford the software (retired, poor: pick any two) and I won't pirate it, but it won't prevent me from sending people who ask over to Altium (Academy) otherwise I'd look like a damn shill! I learned more from Rick Hartley and Eric Bogatin (which I only found thanks to you, Phil's Lab and Robert Fenerac) in a matter of WEEKS than I did in several years of college! As Rick puts it, "The energy is in the fields". That lit up a lightbulb like a supernova! Fields - in the board. That makes way more sense, oddly mostly for capacitors, from the way we're taught. I try to route the fields now, not the electrons and I'm doing far better with noise. Fields made more sense for reflecting electrons in aerials too, oddly. Of course, when you see one , the other becomes more obvious I guess. But thank you again, from a damp, rainy day in England.

@87Spectr 3 ай бұрын

I say thank you very much in advance... you're great!

@fabianmuhlberger6153 3 ай бұрын

Nice format! TY Zach, good explained as always. Would love to see some mixed signal design. Maybe a small class d amp with I2S? best

@qdatfr 3 ай бұрын

Hello Zach, @AltiumAcademy with the Arduino board, you talk about the risk of crosstalk between tracks on different layers but you don't talk about risk of crosstalk between two adjacent tracks on same layers which seems to be closer one to the other (around 1mm ) (and with a much longer parallelism) than the the tracks on different layers (1.6mm). Why?

@shuashuashua1 3 ай бұрын

Great video as allways! Next topic i'd love to see is, routing for high voltage high power, eg. mains source full/half bridge converters. For those applications switches are huge, and mostly installed on heatsink at PCB edge with quite high distance between each other, inductors are often installed via screw terminals, and decopuling capacitors have pitch in range of 15-27 mm, so acceptable loops are much bigger than for fast digital signals, also due to dielectric withstand voltage ground plane cannot be placed in close proximity like 0.1mm, to signal/power (that also may limit copper planes number?). These boards are much different than 90% of board designs covered in web, its relative easy to find how to route HV mosfet/igbt drivers guides, but power elements are mostly ommitted. There is also high frequency commutation noise, that shouldbe considered as EMI issue.

@petersage5157 3 ай бұрын

High power audio design plz? Especially interested in a deep dive into Class D power amplifiers. Literally tired of lugging around massive heat sinks. "...even down to audio frequency" ...and then not a single example of an audio frequency board. I get it. My primary interest in electronics is audio, and I can't see audio either. :p

@josephbaker9932 3 ай бұрын

What would be the benefits of having a large number of stitching vias between Ground pours on Top and Bottom layers? Would it reduce return paths if current could flow from one layer to the other layer to get the shortest path back?

@gustavrsh 2 ай бұрын

Let's say I have a bunch of digital signal traces going from south to north on the top layer. I need to route a DC power trace on the bottom layer, and the shortest path would "cross" underneath these signal traces. (East to west) I learned that doing this is really bad for crosstalk and EMI since I would "block" a return path that is the ground pour on the bottom layer. I have the option of evading this completely, but it would lengthen the DC trace significantly (from 80mm to 140mm), making it more prone to noise and rf interference. What would you suggest in this case?

@WrittenByMasooma 3 ай бұрын

How to select tracewidths and airgap for differential pairs?

@Zachariah-Peterson 2 ай бұрын

Trace width and spacing are selected in order to hit a differential impedance target, such as 100 Ohms differential. The trace width, distance to the ground plane and/or ground pour, and spacing between the pairs determine the differential impedance. There are several ways to size the trace width and spacing. Usually you start with a stackup, so you already have the dielectric constant and distance to ground plane fixed. One option to select the spacing is to use a spacing that matches pin spacing on a component, you would then calculate the trace width required to reach the required differential impedance. To learn more, watch this video: kzfaq.info/get/bejne/jth5f5SA06rKoH0.html

@leeslevin7602 3 ай бұрын

👏👏👏👍

@milindsharma8106 3 ай бұрын

Doesn't puttinh ground pour on noth layers cause ground loops?

@milindsharma8106 3 ай бұрын

I mean if a component on top connects to the bottom layer ground pour with a via, as well as directly to the top layer ground pour? Or in this case should the via just not be there?

@Zachariah-Peterson 2 ай бұрын

@@milindsharma8106 A ground loop arises when two portions of the conductors on the same ground net have different potential. This can occur if the loop of conductor receives a changing magnetic field (which will induce an EMF in the conductor loop) or when a there is some natural potential variation between two points on the loop, such as in an earth connection shared between two different AC circuits. The first is really negligible in PCBs unless you are working at very low current levels. The 2nd case is less important because the inductance in those regions is so small that a strong magnetic field or high frequency magnetic field is needed to induce an EMF.

@frankbauerful 3 ай бұрын

4+ layer boards are a lot more expensive. That alone is reason enough to use 2 layers whenever you can.

@muhammadowaismalik3451 2 ай бұрын

4+ boards are but 4 layers are only slightly more costly then 2 layers boards. Well worth the hassle of routing for power especially in small qualities.