IPC COATING FOR PRINTHEAD
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United States of America
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Issued Date -
Dec 26, 2024
app pub date -
Jun 21, 2023
filing date -
Jun 21, 2023
priority date (Note) -
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status (Latency Note)
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Abstract
An inkjet printer printhead, member thereof, or other component has an internal cavity that has a protective coating. Further surfaces of the component may have the protective coating. To make the protective coating, a target thickness for a film of HfO2 (hafnia) is selected, that will avoid formation of pinholes, thin spots and nodule growth. Using atomic layer deposition (ALD), with the processing adjusted for the target thickness, the film of HfO2 is deposited as a conformal layer on the component, including on a surface of the internal cavity, to form a coated component. A non-wetting coating can be included over the film of HfO2.
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