Flatness and Stress Control Strategies for Coated High-Aspect-Ratio Substrates On Wednesday, April 28th, PFG was the featured presenter for the “Technology: Precision Optics and Components” portion of the OIDA Technology Showcase. Our topic for the presentation is Flatness and Stress Control Strategies for Coated High-Aspect-Ratio Substrates. Kyle Fortenberry, our Senior Optical Thin Film Coatings Engineer, …

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