OPC Mask Verification Station from Japan
>- An automated station that verifies optical proximity correction (OPC) patterns on advanced photomasks using aerial image measurement simulation (AIMS). It is a validation tool essential to mask manufacturing, and therefore falls under tariff item 8486.40.00 for machines specified in Note 11 (C).
Duty Rate — Japan → Canada
0%
Import Tips
• >- Clearly document that the station's principal function is verification of masks and reticles, not general optical inspection, to support classification under 8486.40.00
• If the station includes a microscope that could be classified under Chapter 90, emphasize that it is dedicated to mask manufacturing
• Be prepared to demonstrate that the AIMS technology is integral to the mask production process