Furnaces, Ion Implanters, and RTP | The Fab Stack 2.4

The Fab Stack: semiconductor tools & software, explained. Unit 2 · Inside the Tools. To make a chip, a fab has to plant dopant atoms inside a solid silicon crystal, in exact places, at exact depths, in exact amounts. This video opens three tools that do it: the oxidation and diffusion furnace, the ion implanter, and rapid thermal processing (RTP). You'll see how a furnace grows oxide by consuming silicon, how an implanter sorts, accelerates and counts ions with a Faraday cup, why implants need an anneal, and how RTP protects the thermal budget. Chapters 0:00 Cold open: atoms inside a solid 0:25 The promise 0:40 Where these tools live 0:56 The furnace 1:56 Dopants and diffusion 2:34 The ion implanter 4:02 The anneal 4:27 RTP and the thermal budget 5:19 The control loop 5:42 Recap and next Sources fab2: https://fab2.com/ (captured 2026-10-15) Narration: AI-generated voice (Ara, xAI). Music: Pulsar (The Grey Room / Density & Time), Trinity (Jeremy Blake), Icelandic Arpeggios (DivKid), from the YouTube Audio Library. Fab2 claims are from Fab2's website and job posts, and press coverage.