Coating processes – Direct application of electrical – magnetic – wave – or... – Pretreatment of substrate or post-treatment of coated substrate
Patent
1998-03-16
2000-04-11
Pianalto, Bernard
Coating processes
Direct application of electrical, magnetic, wave, or...
Pretreatment of substrate or post-treatment of coated substrate
134 1, 20419232, 216 65, 216 66, 21912169, 21912184, 427596, B05D 300
Patent
active
060485884
ABSTRACT:
An apparatus and method for selectively removing undesired material from the surface of a substrate provides a flow of inert gas over the undesired material substrate surface while irradiating the undesired material with energetic photons. The invention enables removal of undesired material without altering the physical properties of the material underlying or adjacent the removed, undesired material. Removal effectiveness may be enhanced by utilizing polarized energetic photons. Directing a laser beam to the back side of a transparent substrate may enhance the effectiveness of removal.
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Cauldron Limited Partnership
Pianalto Bernard
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