Why Stable High Vacuum Measurement Improves Coating Yield
Why Stable High Vacuum Measurement Improves Coating Yield In physical vapor deposition (PVD), chemical vapor deposition (CVD), and optical coating processes, chamber pressure directly governs film density, adhesion, uniformity, and defect rates. Even minor fluctuations in the high-vacuum regime—typically 10⁻⁵ to 10⁻⁷ mbar—can shift stoichiometry, increase pinhole density, or trigger arcing that ruins entire batches. […]
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