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Visual Edge Finder 【 wafer Pre Aligner (OCR) 】

PRODUCTS > Semiconductor series > Visual Edge Finder 【 wafer Pre Aligner (OCR) 】

Visual Edge Finder 【 wafer Pre Aligner (OCR) 】

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Pre aligner: Chinese name: Visual Edge Finder, wafer pre positioning system visual version, wafer calibrator. This device achieves high-precision and efficient pre positioning of the center and flat edges (notches) of 6-12 inch wafer wafers, serving the transportation and handling needs of wafer wafers. Our visual edge finder has a center accuracy of within 0.1mm, a Notch accuracy of ± 0.35 degrees, and a Flat accuracy of ± 0.35 degrees. It is suitable for transparent, semi transparent, non transparent missing corners, flat edges, polygons, and other crystal wafers.

Main features:


1. Suitable for pre calibration of wafer position in semiconductor production equipment and testing equipment;


2. Non contact pre positioning wafer;


3. Compatible with SEMI standard 150-300mm wafers and transparent wafers (with no hollow center);


4. Compatible with SEMI standard Notch/Flat;


5. Compatible with 6-12 inch transparent wafers, semi transparent wafers, and non transparent wafers (Type D);


6. Can locate the center and find the Mark (Flat Edge/Notch) logo;


7. Added OCR code reading function,


8. Currently, wafers with hollowed out centers are not supported;


Main configuration:


• PC Vision System


Built in modular stepper motor, driver, and pulse generator


• Serial port type: USB serial port


Modular design




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