December 15, 2025
Quantum cats, glowing praise
Essential Semiconductor Physics,Mark Lundstrom Purdue University [pdf]
Beloved chip prof drops readable physics notes; vets cheer, newbies rejoice
TLDR: Purdue’s Mark Lundstrom released accessible lecture notes on the science behind semiconductor chips as part of a new textbook series. Commenters gush: veterans hail a legend and nod to SEEC nostalgia, beginners love the clarity, and one alum says it changed their perspective—because chips power modern life.
The internet put on its lab goggles and collectively swooned: Purdue legend Mark Lundstrom just dropped Essential Semiconductor Physics, a super-readable set of lecture notes on the science behind the chips in your phone, cars, and everything else. The community mood? Pure fanfare. One commenter called Lundstrom “a giant,” while another pointed out it’s part of a broader textbook series meant as an intellectual heir to the old-school SEEC books—cue nostalgia and respectful head nods. There’s even a handy link to the series: World Scientific NEELNS.
Newcomers are thrilled it’s written in plain English—no math ambushes—since Lundstrom promises an intuitive tour: from materials and doping (think ingredients and flavoring) to basic quantum ideas (tiny rules), to how electrons move, multiply, and chill out, all the way to the equations that make gadgets tick. Meanwhile, veterans are having flashback Fridays to that infamous 400-level grind: one alum recalls going from Schrödinger (quantum-cat guy) to LEDs and transistors in four months and says it “changed my whole perspective.” The “drama,” if you can call it that, is a wholesome tug-of-war: industry folks geeking out over lineage and rigor, while curious readers celebrate that it’s finally readable. Jokes surfaced about “Schrödinger’s LED” being both on and off until Lundstrom explains it—because yes, this release turned physics into popcorn content.
Key Points
- •The lecture notes provide a broad, descriptive introduction to essential semiconductor physics, emphasizing intuitive understanding over heavy mathematics.
- •Content is organized into five units: materials and doping; rudiments of quantum mechanics; equilibrium carrier concentrations; carrier transport, generation, and recombination; and the semiconductor equations.
- •The focus is on the physics enabling semiconductor devices rather than device design itself, with an electrical engineering perspective.
- •The material is intended for science and engineering students and working engineers, and aims to be accessible to readers from other fields.
- •Authored by Mark Lundstrom (Purdue University) and distributed by World Scientific as part of the New Era Electronics lecture notes series; acknowledgments include the late Robert F. Pierret.