Position detection device and vapor deposition apparatus capable of improving the detection accuracy of the position of a substrate
The present invention provides a position detection device and a vapor deposition apparatus capable of improving the detection accuracy of the position of a substrate. The position detection device 10 includes: an imaging unit 11 for capturing a first image, which is formed by the light reflected fr...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The present invention provides a position detection device and a vapor deposition apparatus capable of improving the detection accuracy of the position of a substrate. The position detection device 10 includes: an imaging unit 11 for capturing a first image, which is formed by the light reflected from a flat portion Wp1 of a substrate W, and a second image, which is formed by the light reflected from an oblique angle portion Wp2 connected to the flat portion Wp1; and an image processing portion 12 for extracting the boundary of the flat portion Wp1 and the oblique angle portion Wp2 based on the contrast of the first image and the second image to serve as part of the outer shape of the substrate W, and determining the position of the substrate W based on the part of the extracted outer shape. |
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