Self-contained household water system pumps and windmill pumps
Parts suitable for use solely or principally with the engines of heading 84.07 or 84.08. > Other pumps; liquid elevators: > Pumps > Self-contained household water system pumps and windmill pumps
Duty Rate (from China)
Products classified under Tariff item 8413.81.00.20
Chemical Vapor Deposition Precursor Pump
An ultra-clean pump designed to deliver liquid semiconductor precursors in chemical vapor deposition (CVD) equipment. It handles volatile organic precursors with contamination-free delivery, ensuring precise deposition during wafer processing. This pump is essential for maintaining the purity required in semiconductor manufacturing.
8413.81.00CMP Slurry Filtration Pump
A pump that recirculates filtered chemical-mechanical polishing (CMP) slurry to maintain abrasive particle distribution for uniform wafer polishing. It is specifically designed for semiconductor wafer fabrication, ensuring consistent slurry delivery. This pump is critical for achieving the required surface finish on wafers.
8413.81.00Czochralski Crystal Puller Pump
A pump integral to Czochralski crystal growers used in semiconductor manufacturing to produce monocrystalline silicon boules. It circulates molten silicon precisely during the pulling process, ensuring crystal uniformity. This pump is essential for the production of high-quality semiconductor wafers.
8413.81.00Epitaxial Reactor Precursor Delivery Pump
A metering pump for hydride and metalorganic precursors in MOCVD epitaxial reactors growing compound semiconductor layers on wafers. It ensures precise layer uniformity by delivering exact quantities of precursors. This pump is designed for the demanding requirements of semiconductor epitaxial growth.
8413.81.00Float Zone Melting Process Pump
A specialized liquid pump used in float zone crystal growth equipment for semiconductor materials like silicon. It handles inert gases liquefied or process fluids with extreme purity requirements, maintaining zone stability. This pump is essential for producing high-purity semiconductor crystals.
8413.81.00Hydrofluoric Acid Etch Pump
A corrosion-resistant pump for hydrofluoric acid (HF) etching solutions used to clean and pattern semiconductor wafers during device fabrication. It handles highly aggressive acids safely, ensuring reliable operation in harsh environments. This pump is critical for semiconductor manufacturing processes.
8413.81.00Photoresist Developer Liquid Pump
A precision pump for alkaline developer solutions in semiconductor wafer photolithography processing. It delivers exact flow rates for pattern development after exposure, ensuring critical dimensions are met. This pump is designed for the high-precision requirements of semiconductor fabrication.
8413.81.00Rinse Water Recirculation Pump for Wafer Cleaning
A high-flow pump for deionized water recirculation in post-etch wafer cleaning stations, critical for particle removal before inspection. It supports semiconductor device yield by ensuring clean wafer surfaces. This pump is designed for the ultra-pure water requirements of semiconductor processing.
8413.81.00Semiconductor Wafer Grinding Coolant Pump
A high-precision pump for circulating coolant fluids during crystal grinding of semiconductor boules to exact wafer diameters. It is essential in wafer preparation equipment to maintain temperature control and surface flatness. This pump ensures the quality of wafers used in semiconductor fabrication.
8413.81.00Semiconductor Wafer Lapping Fluid Pump
A precision metering pump for delivering lapping slurries and fluids in wafer preparation equipment to achieve critical flatness tolerances. It is used after slicing to prepare wafer surfaces for further processing. This pump ensures consistent slurry delivery for high-quality wafer surfaces.
8413.81.00Silicon Wafer Polishing Slurry Pump
A specialized pump circulating colloidal silica slurries for chemical-mechanical polishing (CMP) of semiconductor wafers to a mirror finish required for fabrication. It is critical for final surface preparation in wafer manufacturing. This pump ensures consistent slurry flow for uniform polishing.
8413.81.00Spin Coating Photoresist Pump
A low-flow pump dispensing photoresist onto spinning semiconductor wafers for uniform thin film coating in lithography. It controls the dispense profile for critical dimensions in device fabrication. This pump is designed for the precision required in photoresist application.
8413.81.00Wafer Dicing Coolant Pump
A high-pressure pump for coolant in laser or mechanical wafer dicing saws separating finished semiconductor devices. It prevents chipping and thermal damage during the dicing process. This pump is essential for maintaining the integrity of semiconductor devices.
8413.81.00Wafer Slicing Saw Coolant Circulation Pump
A pump designed for high-pressure coolant delivery in wafer slicing saws that cut monocrystalline semiconductor boules into thin wafers. It ensures clean cuts and prevents thermal damage during slicing. This pump is critical for producing high-quality wafers.
8413.81.00Wet Stripper Chemistry Pump
A pump for hot piranha or SC-1 chemistries removing photoresist after etching in semiconductor wafer processing. It requires high temperature and chemical resistance for aggressive cleaning solutions. This pump is essential for maintaining wafer cleanliness in fabrication.