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  2. Spin coating - Wikipedia

    en.wikipedia.org/wiki/Spin_coating

    The substrate is then rotated at speeds up to 10,000 rpm to spread the coating material by centrifugal force. A machine used for spin coating is called a spin coater, or simply spinner. [1] Rotation is continued while the fluid spins off the edges of the substrate, until the desired thickness of the film is achieved.

  3. Chemistry of photolithography - Wikipedia

    en.wikipedia.org/wiki/Chemistry_of_photolithography

    There are four basic parameters that are involved in spin coating: solution viscosity, solid content (density), angular speed, and spin time. [13] A range of thicknesses can be achieved by spin coating. Most commonly the thicknesses range from 1-200 μm. The main properties that affect the thickness of the film are viscosity and spin speed.

  4. Micro-encapsulation - Wikipedia

    en.wikipedia.org/wiki/Micro-encapsulation

    Usual deposition rates are about 0.5μm/min. Coating thickness ranges 0.2–75 μm (0.0079–2.9528 mils). The coating is uniform, even over sharp projections. Protein microcapsules are biocompatible and biodegradable , and the presence of the protein backbone renders the membrane more resistant and elastic than those obtained by interfacial ...

  5. Thin film - Wikipedia

    en.wikipedia.org/wiki/Thin_film

    This allows creating thin films of various molecules such as nanoparticles, polymers and lipids with controlled particle packing density and layer thickness. [6] Spin coating or spin casting, uses a liquid precursor, or sol-gel precursor deposited onto a smooth, flat substrate which is subsequently spun at a high velocity to centrifugally ...

  6. Calo tester - Wikipedia

    en.wikipedia.org/wiki/Calo_tester

    The Calo tester, also known as a ball crater or coating thickness tester, is a simple and inexpensive piece of equipment used to measure the thickness of coatings.Coatings with thicknesses typically between 0.1 to 50 micrometres, such as Physical Vapor Deposition (PVD) coatings or Chemical Vapor Deposition (CVD) coatings, are used in many industries to improve the surface properties of tools ...

  7. Film applicator - Wikipedia

    en.wikipedia.org/wiki/Film_applicator

    Each bar will give a "theoretical wet film thickness" or, in other words, the thickness of the coating that should remain on the drawdown card after application. Even with high manufacturing tolerances, the actual wet film thickness can vary from 50% to 90% of the gap. There are multiple types of bar applicators, their forms and uses are shown ...

  8. Puzzle solutions for Saturday, Nov. 30, 2024

    www.aol.com/news/puzzle-solutions-saturday-nov...

    Find the Words. Glittering accessories (Distributed by Creators Syndicate) Kubok. This article originally appeared on USA TODAY: Online Crossword & Sudoku Puzzle Answers for 11/30/2024 - USA TODAY.

  9. Compact disc manufacturing - Wikipedia

    en.wikipedia.org/wiki/Compact_Disc_manufacturing

    The spin coater rinses the glass blank with a solvent and then applies either photoresist or dye-polymer depending on the mastering process. Rotation spreads photoresist or dye-polymer coating evenly across the surface of the glass. The substrate is removed and baked to dry the coating and the glass substrate is ready for mastering.

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