Semiconductor Mask Inspection System
An optical inspection system designed specifically for detecting defects in photomasks and reticles used in semiconductor photolithography processes. It employs high-resolution imaging and automated analysis to ensure mask quality. This falls under tariff item 9031.49.90 as an other optical measuring instrument.
Import Duty Rates by Country of Origin
| Origin Country | MFN Tariff | Surtaxes | Total Effective Rate |
|---|---|---|---|
| 🇨🇳China | Free | — | Free |
| 🇲🇽Mexico | Free | — | Free |
| 🇺🇸United States | Free | — | Free |
| 🇩🇪Germany | Free | — | Free |
| 🇯🇵Japan | Free | — | Free |
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If the system is a coordinate measuring machine
Coordinate measuring machines are classified separately in the same subheading.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right tariff item — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Provide CBSA with specifications on the high-resolution imaging to confirm classification under 9031.49.90
• Verify if the system qualifies for duty relief under semiconductor manufacturing equipment programs
• Ensure the goods are declared as optical inspection systems, not as general-purpose cameras
Related Products under Tariff item 9031.49.90
Autocollimator Optical Alignment System
The Autocollimator Optical Alignment System is a precision instrument measuring small angular deviations for machine tool alignment and optical testing. It is an electronic autocollimator used in metrology laboratories, fitting under tariff item 9031.49.90 as an 'Other' optical measuring instrument.
Chromatic Confocal Sensor
The Chromatic Confocal Sensor is a non-contact optical sensor using chromatic aberration for high-speed surface profiling and thickness measurement. It is an advanced optical measuring technology under tariff item 9031.49.90 for inline production monitoring.
Confocal Laser Scanning Gauge
The Confocal Laser Scanning Gauge is a point sensor using confocal laser scanning for precise distance and thickness measurement in production lines. It is an industrial optical measuring instrument under tariff item 9031.49.90 for automated quality control.
Conoscopic Holography Sensor
The Conoscopic Holography Sensor is a compact optical sensor using conoscopic holography for 3D surface profiling and vibration analysis. It is an advanced optical measuring instrument under tariff item 9031.49.90 for R&D and production metrology applications.
Digital Holographic Microscope
The Digital Holographic Microscope combines digital holography with microscopy for 3D quantitative imaging and surface metrology. It falls under tariff item 9031.49.90 when the measurement function predominates over microscopic observation.
DUV Mask Metrology Station
A deep ultraviolet metrology station used to measure chrome patterns, quartz thickness, and defectivity on DUV photomasks in semiconductor fabs. It is automated for high-volume inspection and relies on optical measurement techniques. This places it under tariff item 9031.49.90 as an other optical measuring or checking instrument.