B - Operations – Transporting – 23 – K
Patent
B - Operations, Transporting
23
K
B23K 26/02 (2006.01) B23Q 15/22 (2006.01) G03F 1/00 (2006.01) G03F 9/00 (2006.01) H01L 21/68 (2006.01)
Patent
CA 2513779
The present invention relates to a method for positioning openings (1) of a predetermined position in a substrate (2) that is in the form of a printing template by using a laser. To this end, the substrate is positioned by fixing means (3) in the form of a clamping frame. When this is done, local displacement of the openings (1) resulting from subsequent steps in the process, and which lead to a change in the tension state of the substrate (2), are avoided because the coordinates of a central reference point (4) are determined first. The particular distance (a) from each predetermined positions of the openings (1) to this reference point (4) is then determined and a ranking is formed therefrom. This ranking then forms the basis for a processing program (6) by which the path followed by the laser head is controlled and the openings are positioned in the substrate (2)
Fetherstonhaugh & Co.
Lpkf Laser & Electronics Ag
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