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01 ·Device Physics·★ MEMBER·9 min read From FinFET to GAA — Why the Transistor Had to Go Vertical Why did a flat transistor grow a fin, and then become a stack of thin slabs? With three tools — short-channel effects, DIBL, and the natural length — this piece shows that FinFET and GAA nanosheets were not a matter of taste but a corner physics painted the industry into. No prior knowledge assumed. 02 ·Scaling & Power·FREE·10 min read What Moore's Law Actually Says — What Ended, and What Is Still Going "Double every two years" was never a law of physics — it was a timetable the industry agreed to keep. Dennard scaling is what ended; cost is what slowed; density and going vertical are what continue. A ground-up tour through log axes, the flat-to-FinFET-to-GAA story, and the arithmetic of cost per transistor.