Removal of surface contaminants by irradiation from a high-energ

Metal working – Barrier layer or semiconductor device making

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2504921, 2504922, 2504923, H01L 21268

Patent

active

050995570

ABSTRACT:
A method and apparatus for removing surface contaminants from the surface of a substrate by high-energy irradiation is provided. The invention enables removal of surface contaminants without altering of the substrate's underlying molecular structure. The source of high-energy irradiation may comprise a pulsed laser.

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