METHOD OF COATING A HEARING AID COMPONENT AND A HEARING AID COMPRISING A COATED COMPONENT
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United States of America Patent
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Jan 14, 2011
filing date -
Aug 14, 2008
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Abstract
A method for coating of a hearing aid said method comprising the deposition of an adhesion layer that does not develop corrosive reaction products. The method comprises applying an organometallic compound to the surface of the hearing aid component using vapour phase deposition, inducing a reaction to convert it to a metal oxide, then applying a silane molecule to the surface, and inducing a reaction between the applied silane molecule and the metal oxide. The invention also relates to a hearing aid comprising a component for a hearing aid provided with a hydrophobic coating comprising a layer of aluminium oxide, and a coating for a hearing aid component. The coating is produced in a system (701) for vapour phase deposition of precursors.
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