Semiconductor Wafer Cleaning/Rinsing Process Monitoring and Control

10/22/97


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Table of Contents

Semiconductor Wafer Cleaning/Rinsing Process Monitoring and Control

Diode-laser absorption sensors for real-time control of semiconductor processes

Theory of the diode-laser sensor

Diode-laser measurements of HF absorption (Condition: 94.4 Torr (HF/N2 mixture), 296K, 20 cm path)

Temperature determined from HF absorption in quartz reactor

Summary of the vapor-phase cleaning project

Wafer Rinse Study

Laser-induced fluorescence (LIF) measurements of carryover layer in rinse tank

Absorption spectra of SR 640 in H2SO4/H2O solutions

Progress to date: wafer rinse project

Author: Shang-I Chou