Silicon University / Track A / Pillar 04 · Wet Processing
10
RCA Wet Cleans & Dilute Chemistry
Step 10 of 24 · Surface Chemistry, Ultra-Clean Wet Processing & Contamination Control · three tiers, 55 min total.
FEOL phase
Topic 4.1
3 articles
Tier 1 · Core FundamentalsRCA Clean Evolution & Dilute Chemistry Fundamentals
A clear, intuitive breakdown of the classic RCA clean (1970s origins) and its modern dilute evolutions (SC-1 and SC-2), explaining how chemicals target organic contaminan…
Tier 2 · Equipment & KinematicsSingle-Wafer Spin Tools vs. Automated Batch Immersion Benches
Hardware architecture of modern automated wet benches, including Teflon/PFA piping, inline chemical dosing injection loops, quartz bath heating exchangers, sub-20nm point…
Tier 3 · Deep-Dive & Yield EngineeringSurface Oxidation & Chemical Etch Kinetics in SC-1/SC-2 Solutions
Detailed reaction mechanisms of NH_4OH/H_2O_2/H_2O (SC-1) controlled silicon etching (0.25nm/min lift-off threshold) and HCl/H_2O_2/H_2O (SC-2) metallic complexation, mai…