Concepts
Understand the ideas that make modern semiconductors work — from the physics of a single crystal up to how billions of transistors become a processor.
Start here
What is a semiconductor?
New to this? Begin with the one idea everything else builds on, then follow the path through devices, logic and beyond.
Prefer to jump in? Pick any cluster below — beginners can read top to bottom, and experienced readers can go straight to the advanced topics. Items marked Soon aren’t written yet.
Foundations
What a semiconductor actually is, and the physics of charge, energy bands and doping that everything else rests on.
For: Complete beginners — the ground truth before devices.
Devices
How junctions and transistors switch and amplify — the building blocks inside every chip.
For: Students and engineers moving from physics to real devices.
Logic
How transistors combine into logic gates, digital circuits and ultimately processors.
For: Anyone connecting devices to the digital world.
Memory
The main memory technologies and how they trade off speed, density and cost.
For: Anyone curious how chips store data.
Advanced
Why chips keep getting denser — and the scaling limits and engineering realities that come with it.
For: Engineers and researchers going deeper.
Where these ideas lead
Concepts are the foundation. See how they become a real chip, get made, and get packaged.