Czochralski Crystal Puller Ingot Mold
This high-precision ingot mold is designed for use in Czochralski crystal pullers to produce monocrystalline silicon boules for semiconductor wafers. It falls under HTS 8454.90.00.60 as a part of casting machines used in metallurgy for growing pure semiconductor crystals. The mold ensures uniform heat distribution during the crystal growth process.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If imported as a general-purpose mold without semiconductor specs
Parts for machinery not specifically identified in heading 84.54 fall under the residual machinery parts provision.
If made primarily of graphite and sold separately
Graphite articles not shaped for specific machinery may classify under non-electrical articles of graphite.
If equipped with integrated measurement sensors
Machines with optical or precision measuring capabilities shift to measuring/testing equipment in Chapter 90.
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Import Tips & Compliance
• Verify material composition (e.g
• high-purity graphite or quartz) meets semiconductor-grade standards to avoid reclassification
• Include detailed technical specs and end-use certification for semiconductor manufacturing to qualify for potential duty relief programs
Related Products under HTS 8454.90.00.60
Boule Lapping Machine Workhead
Workhead component for lapping machines that flatten semiconductor boules to precise tolerances before wafer slicing. Falls under HTS 8454.90.00.60 as parts of wafer preparation equipment in metallurgy. Achieves critical surface flatness.
Crystal Boule Casting Mold Frame
Structural frame for supporting ingot molds during semiconductor crystal growth in pullers and casters. Part of HTS 8454.90.00.60 as essential to metallurgical casting machines. Withstands thermal cycling.
Ingot Mold Temperature Control Sleeve
Insulating sleeve for ingot molds regulating crystallization temperature gradients in semiconductor casting. HTS 8454.90.00.60 part for precise metallurgical control. Made from advanced refractories.
Float Zone Crystal Grower Crucible Assembly
A specialized crucible part for float zone crystal growers used to melt and purify semiconductor materials like silicon into monocrystalline form. Classified under HTS 8454.90.00.60 as a component of semiconductor casting machines in metallurgical processes. It maintains vacuum and high-temperature stability during zone refining.
Silicon Wafer Casting Ladle Nozzle
Precision-engineered nozzle for ladles in silicon casting machines used to pour molten semiconductor material into molds for ingot formation. It qualifies for HTS 8454.90.00.60 as a part of metallurgical casting machines for semiconductor production. The nozzle controls flow rate to minimize impurities.
Gallium Arsenide Ingot Mold Insert
Replaceable insert for ingot molds in casting machines processing gallium arsenide for compound semiconductor wafers. Falls under HTS 8454.90.00.60 as parts of specialized metallurgical casting equipment. Designed for compound semiconductor thermal profiles.