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Plasma Technology for Surface Modification a fifteen minute introduction Thierry Corporation Plasma Science and Technology George Osenga
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Topics of Discussion Plasma definition, an introduction Surfaces, an introduction Plasma surface, modification defined Plasma applications for manufacturing Conclusions
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Plasma Definition Introduction Plasma is a (partially) ionized gas in which ions, electrons, and photons are present as well as radicals and molecules in an excited state
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Plasma Definition Introduction Plasma is a (partially) ionized gas in which ions, electrons, and photons are present as well as radicals and molecules in an excited state GASES GONE WILD
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Plasma Definition Introduction Currently in industry we use two types of plasma. –Plasma generated in a vacuum or low pressure plasma –Plasma generated at near atmospheric pressure
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Plasma Definition Introduction Plasma is also defined by the gas or gases used to make up the plasma Common gases used in generating plasma in manufacturing today are: oxygen, argon, nitrogen, hydrogen, sulfur hexafluoride and many more
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Plasma Definition Introduction Cold plasma discharges are generated by passing enough electrical current through a gas to cause the gas to change state This electrical current often defines the process to generate the type of plasma: radio frequency, microwave, inductively coupled, and pulsed direct current
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Introduction to Surfaces Surfaces commonly found in manufacturing that are plasma treated are defined by their composition Examples of common materials: metals, plastics, rubber, elastomers, polymers, glass, ceramics, powders and liquids
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Introduction to Surfaces There are virtually no size or shape limitations when it comes to plasma processing Plasma systems are built to process something as small as a contact lens or as large as an aircraft wing Plasma conforms to the shape of the articles or items it surrounds
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Introduction to Surfaces Surfaces can also be treated when moving Surfaces are treated during in-line process Surfaces are treated when tumbled Surfaces are treated in roll to roll Surfaces like powders or liquids
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Plasma Applications for Manufacturing Plasma Clean Plasma Activate Plasma Etch Plasma Deposition/Coating
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Plasma Applications for Manufacturing Plasma Clean Inorganic Compounds -oils, mold release, polymer bleed, drill smear, fingerprints, solder flux, carbon ash Inorganic -metal oxides, metal oxide reduction Decontamination -extracellular debris, pyrogens, proteins, DNA, RNA
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Plasma Applications for Manufacturing Plasma Activate Surface Activation – THE MOST COMMON (raise the surface energy) Surface Passivation
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Plasma Applications for Manufacturing Plasma Etch Chemical Etch Physical Etch
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Plasma Applications for Manufacturing Plasma Deposition/Coating Hydrophobic (does not like water) -Fabrics, Footwear, Electronics, Medical Devices Hydrophilic (likes water) -Fabrics, Contact Lenses, Medical Devices Oleophobic (does not like oil) -Electronics, Optics, Marine Products
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Conclusions Plasma processing in manufacturing is: safe, clean, and cost effective Plasma equipment and technical experts are available Plasma processing increases: quality, productivity, and profit
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Topics Discussed Plasma definition, an introduction Surfaces, an introduction Plasma surface, modification defined Plasma applications for manufacturing Conclusions
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Thierry Corporation Plasma Science and Technology George Osenga Director of Operations North America, Mexico & Canada george.osenga@thierry-corp.com Phone: (248)-549-4581 george.osenga@thierry-corp.com
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