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Method and apparatus for local vectorial particle cleaning

Image Number 4 for United States Patent #6566169.

Particles are removed from the surface of a substrate. Respective position coordinates of the particles on the surface are determined. A beam of electromagnetic energy is directed at the coordinates of each of the particles in turn, such that absorption of the electromagnetic energy at the surface causes the particles to be dislodged from the surface substantially without damage to the surface itself.

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