Lanthanum Aluminate Substrate from Mexico
Lanthanum aluminate (LaAlO3) single crystal substrates are used for epitaxial thin-film growth in superconductors. Unworked crystals under tariff item 2841.90.00 are classified per notes on doped elements, supplied as 2-inch diameter wafers.
Duty Rate — Mexico → Canada
0%
Import Tips
• If the wafers are cut for electronic applications, they may fall under heading 38.18 rather than this item
• Provide documentation on the crystal growth and cutting process to support classification