9947Articles and materials for use in the manufacture of diodes, transistors and similar semiconductor devices, photosensitive semiconductor devices (including photovoltaic cells whether or not assembled in modules or made up into panels), light emitting diodes, mounted piezo-electric crystals or electronic integrated circuits and microassemblies; Machinery, apparatus and parts thereof to be employed in designing, developing, testing or manufacturing semiconductor devices, excluding water or waste treatment equipment, reverse osmosis equipment for demineralization or deionization of water, laminar flow clean air work stations, fume hoods, clean rooms, high efficiency particulate air filter modules, laminar flow modules, electronic work tables, room pressurization or air flow monitors, acrylic storage boxes, and parts of the foregoing.

0 subheadings

Source: CBSA Customs Tariff.