GaAs Photodiode Wafers
Gallium arsenide semiconductor wafers generating photocurrent from infrared light. Classified in 8541.49.10.10 as unmounted photosensitive wafers for telecom and laser detection. These full wafers are sliced into dice post-import for device fabrication.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If lead-mounted or in simple packages
Any mounting or encapsulation moves to 'other photosensitive devices' subheading.
If completed optical sensor assembly
Fully assembled into liquid crystal devices or displays shifts to optical instruments.
If parts of semiconductor manufacturing equipment
Dice specifically for wafer fab tools classified under automatic data processing parts.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right HTS code — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Provide material composition certificates confirming GaAs substrate to avoid reclassification as silicon devices
• Declare wafer diameter and doping specs accurately; mismatches lead to CBP scrutiny
• Ensure cleanroom packaging to prevent contamination claims during inspection
Related Products under HTS 8541.49.10.10
SWIR InGaAs Photodiode Wafers
Short-wave infrared InGaAs wafers for machine vision and spectroscopy beyond 1700nm. HTS 8541.49.10.10 covers these unmounted photosensitive semiconductor wafers for defense and industrial apps.
Silicon Photodiode Chips
Unmounted silicon chips designed as photodiodes that convert light into electrical current. These fall under HTS 8541.49.10.10 as photosensitive semiconductor devices in the form of unmounted chips used for optical sensing applications. They are raw dice ready for packaging in sensors or detectors.
CCD Image Sensor Dice
Charge-coupled device (CCD) semiconductor dice for capturing visible light images. These unmounted chips under 8541.49.10.10 are photosensitive semiconductors used in scientific cameras and astronomy equipment before packaging.
InGaAs PIN Photodiode Dice
Indium gallium arsenide PIN junction dice for near-infrared fiber optic receivers. These unmounted photosensitive semiconductors under 8541.49.10.10 enable high-speed data transmission detection.
APD Avalanche Photodiode Wafers
Germanium wafers for avalanche photodiodes providing internal gain for low-light detection. Classified 8541.49.10.10 as unmounted photosensitive wafers for LIDAR and spectroscopy.
Quantum Dot Photodetector Chips
PbS quantum dot semiconductor chips tunable across SWIR spectrum for hyperspectral imaging. HTS 8541.49.10.10 applies to these emerging unmounted photosensitive dice.