Semiconductor Basics Cheat Sheet

Semiconductor devices made approachable: the equations and pictures behind diodes and transistors.

What's Covered

• Band gaps of Si, Ge and GaAs, and the photon-energy shortcut
• Intrinsic carriers, mass action, n-type and p-type doping, Fermi level
• Drift, diffusion, conductivity, mobility and the Einstein relation
• The p-n junction with a band diagram, built-in voltage and the diode equation
• The n-channel MOSFET square law
• How chips are made: oxidation, lithography, etching, doping, deposition and CMP

You'll Receive

• One-page PDF in US Letter and A4 (one zip download)
• Print at 100%, or annotate it in GoodNotes, Notability or any PDF app

Why Students Like It

• Handwritten-style notes on grid paper, color-coded by topic
• Key formulas boxed, with short notes on when to use each one

Written and designed by Auraeon with AI assistance. Formulas were checked, but notation and sign conventions vary between courses, so follow your instructor's.

This is a digital download: no physical item will be shipped. For personal study use only. Please don't resell or share the files.