Electric heating – Metal heating – By arc
Patent
1995-12-19
1998-11-24
Mills, Gregory L.
Electric heating
Metal heating
By arc
21912173, 21912177, 21912185, B23K 2606
Patent
active
058411011
ABSTRACT:
A method used in manufacturing a workpiece using a plurality of spaced apart mask patterns includes two dividing steps and two focusing steps. The first step divides a light beam emitted from a light source into a plurality of light beams on a first plane including a first axis. A second step divides each of the plurality of light beams into a plurality of light beams on a second plane perpendicular to the first plane, the second plane including a second axis perpendicular to the first axis. A third step focuses the plurality of light beams produced by the second step only in the first direction. A fourth step focuses the plurality of light beams focused in this third step in the first direction at a position beyond the plurality of mask patterns in the second direction so that the light beams focused in the third step overlap each other to perform a plurality of spaced apart images, each of which illuminate one of the plurality of spaced apart mask patterns.
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Canon Kabushiki Kaisha
Mills Gregory L.
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