Semiconductor Wafer Processing Gate Valve
A precision gate valve designed for controlling gas flow in semiconductor wafer processing equipment, such as crystal growers and etch chambers. It falls under HTS 8481.80.9050 as an other appliance for pipes in high-vacuum systems used in semiconductor manufacturing. Made from corrosion-resistant materials to handle ultra-pure gases.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If specifically for semiconductor testing apparatus
Statistical notes distinguish processing vs testing equipment valves; testing falls under 8481.80.9040.
If integrated with automatic control for testing
Control valves with sensors for semiconductor testing classify as automatic regulators in Chapter 90.
If solely a part of semiconductor lab equipment
Parts of semiconductor manufacturing machines (e.g., crystal pullers) go to 8419.90 for lab-type apparatus.
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Import Tips & Compliance
• Verify valve specs meet semiconductor cleanroom standards (e.g
• particle-free, UHP certification) to avoid reclassification
• Include detailed end-use documentation proving use in wafer manufacturing to qualify under statistical notes
Related Products under HTS 8481.80.90.50
Wafer Grinder Coolant Control Valve
Precision solenoid valve for metering diamond slurry coolant in wafer grinding and lapping machines during semiconductor wafer preparation. HTS 8481.80.9050 covers such other appliances in wafer prep equipment pipelines. Features low-particle generation for flatness-critical processes.
Wafer Polisher Slurry Delivery Valve
Diaphragm valve for precise slurry delivery in chemical mechanical planarization (CMP) polishers preparing wafer surfaces for fabrication. Under HTS 8481.80.9050 as other semiconductor wafer prep appliance. Prevents agglomeration in nano-scale polishing.
Ion Implanter Process Gas Isolation Valve
Fast-acting isolation valve for dopant gas lines in high-energy ion implanters used after wafer preparation. HTS 8481.80.9050 covers other valves in semiconductor processing equipment. Millisecond response prevents source contamination.
Wafer Lapping Machine Pressure Valve
Hydraulic pressure regulating valve for maintaining consistent force in double-side wafer lappers achieving dimensional tolerances. Classified in HTS 8481.80.9050 for semiconductor wafer preparation appliances. Ensures parallelism within microns.
Epitaxial Reactor Precursor Gas Valve
UHP precursor gas delivery valve for MOCVD epitaxial reactors growing compound semiconductor layers on prepared wafers. HTS 8481.80.9050 for other semiconductor processing appliances. Heated design prevents condensation.
Crystal Boule Diameter Grinder Coolant Valve
Metering valve controlling coolant to diamond wheels grinding semiconductor crystal boules to exact wafer diameters. Under HTS 8481.80.9050 as wafer manufacturing preparation appliance. Critical for slicing yield.