For Professional Hardware Engineers

Master PCB design. Ship with confidence.

PCB Design Skool takes you there step by step: stackup, signal integrity, power, and EMC from first principles, with expert reviews on your actual boards. Built by a Principal EMC Architect.

Join PCB Design Skool
Lead HW Engineer — ETH Zurich IPC Certified Interconnect Designer Altium® Expert Author Fortune 500 & major corporations 80,000+ engineers reached

The Roadmap

From following rules to mastering first principles.

Five steps. Each one builds on the last. All of it lives inside PCB Design Skool.

1

Master stackup design

Your board’s EMC behavior starts at the stackup. Learn to make the choice deliberately, before a single trace is routed.

2

Understand signal integrity & power

Know why impedance and PDN targets matter, not just what the rules say.

3

Design for compliance

Design with EMC in mind from hour one, so the chamber confirms your work instead of surprising you.

4

Get expert design reviews

Feedback on your actual boards from engineers who ship hardware for a living.

5

Ship with confidence

Understand every decision on your board, and be able to defend it in review.

What we ship

Courses, tools, and a community for engineers who take PCB design seriously.

PDN Design Series preview

PDN Design Series

Power distribution done properly

Four resources: explainer, mini-course, cheat sheet, and design wizard.

Get the PDN Series
SI Design Series preview

SI Design Series

Signal integrity essentials

Transmission lines, reflections, terminations, and crosstalk — design for signal integrity from the first layout pass.

Get the SI Series
PCB Stackup Design Series preview

PCB Stackup Design Series

Field containment from first principles

Eight resources: explainer, mini-course, cheat sheet, impedance calculator, stackup generator, builder, audit checklist, and flashcards.

Get the Stackup Series
PCB Design Mastery preview

PCB Design Mastery

24 modules · 12 months access

Stackup, signal integrity, PDN, EMI layout, and manufacturing handoff.

See the course
EMC/EMI Design Course preview

EMC/EMI Design Course

11 modules · pre-compliance ready

Filter design, conducted and radiated emissions, pre-compliance testing strategy.

See the programme
PCB + EMC Course Bundle preview
Best value

PCB + EMC Bundle

35+ modules · saves €149

PCB Design Mastery and EMC/EMI Design Course in one. Everything you need to design and certify compliant hardware.

See the bundle
EMI Control Guides Bundle

EMI Control Guides Bundle

3 practical guides · instant download

Radiated emissions control, top 10 PCB EMC mistakes, and EMI quick fixes. Straight to your inbox.

  • Radiated Emissions & EMI Control
  • Top 10 PCB Design Mistakes for EMC
  • EMI Quick Fixes Guide
Get the bundle
PCB Design Skool community

PCB Design Skool

Exclusive community on Skool

Learn to design professional Printed Circuit Boards from stackup to layout to signal integrity & paid courses & community of working engineers

Join the community
Hardware Engineer Accelerator community

Hardware Engineer Accelerator

Members community on Skool

Learn to turn your hardware engineering expertise into more income, senior roles, or your own consulting practice.

See the Accelerator

Blog & Articles

Technical articles on EMC & PCB design

EM fields, EMI filter topologies, why engineers fail EMC — and what to fix before the lab.

  • EM fields, signal propagation & layout
  • EMI filter topologies — which one, when
  • Why engineers fail EMC
Read the blog

What engineers say

Engineers & teams who trust Fresu Electronics

See all testimonials

About Dario

Dario Fresu

IPC Certified Interconnect Designer · Lead HW Engineer at ETH Zurich · Founder, Fresu Electronics

Lead Hardware Engineer at ETH Zurich on a medical device project. Consulting experience across Fortune 500 companies and major corporations. Background in EV battery management, industrial EMC, and hardware for aerospace. Expert Author for Altium®.

80K+

Engineers reached across platforms

4th

Generation electrical professional

Full credentials
Dario Fresu, Founder of Fresu Electronics

Dario Fresu

Founder · Lead HW Engineer @ ETH Zurich

Master PCB design. Ship with confidence.

Join worldwide engineers inside PCB Design Skool. Three exclusive training videos the moment you're in.

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EMC Design Audit for companies