Machines for uses ancillary to printing
Printing machinery used for printing by means of plates, cylinders and other printing components of heading 8442; other printers, copying machines and facsimile machines, whether or not combined; parts and accessories thereof: > Parts and accessories: > Parts and accessories of printing machinery used for printing by means of plates, cylinders and other printing components of heading 8442: > Machines for uses ancillary to printing
Duty Rate (from China)
Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Except as provided in headings 9903.88.05, 9903.88.06, 9903.88.07, 9903.88.08, 9903.88.10, 9903.88.11, 9903.88.14, 9903.88.19, 9903.88.50, 9903.88.52, 9903.88.58, 9903.88.60, 9903.88.62, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(a) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(b) [to this subchapter]
Products classified under HTS 8443.91.10.00
Wafer Surface Grinder for Pre-Polish Truing
Grinds wafer surfaces to initial flatness before lapping/polishing stages in semiconductor printing preparation chain for heading 8442 equipment. Ensures dimensional tolerances per statistical notes. HTS 8443.91.10.00 ancillary printing machine.
Czochralski Crystal Puller for Semiconductor Wafer Production
This machine uses the Czochralski method to grow monocrystalline silicon boules from which semiconductor wafers are sliced, serving as ancillary equipment in the fabrication process for printing semiconductor circuits via photolithography plates in heading 8442 systems. It ensures precise crystal purity and structure essential for high-quality wafer printing applications. Classified under 8443.91.10.00 as a machine ancillary to printing machinery of heading 8442.
Float Zone Crystal Grower for Silicon Boules
A float zone machine produces ultra-pure monocrystalline silicon boules via zone melting, ancillary to printing processes in semiconductor fabrication using heading 8442 photolithography equipment. It prepares crystal material for wafer slicing used in circuit printing. Falls under 8443.91.10.00 for printing ancillary machines.
Crystal Boule Grinder for Wafer Diameter Precision
This grinder shapes semiconductor crystal boules to exact diameters and flats indicating conductivity, preparing them for wafer slicing in printing ancillary processes under heading 8442. Critical for flatness tolerances in photolithography printing. Classified in 8443.91.10.00 as printing machinery ancillary.
Semiconductor Wafer Slicing Diamond Saw
Precision diamond wire saw slices monocrystalline boules into thin semiconductor wafers for use in printing processes with heading 8442 machinery. Ensures minimal kerf loss for high-yield printing substrates. Under 8443.91.10.00 as ancillary to printing.
Wafer Edge Grinder for Semiconductor Printing Prep
Grinds wafer edges post-slicing to precise dimensions and safety specs for handling in printing equipment of heading 8442. Ancillary machine ensuring wafer integrity for photolithography. HTS 8443.91.10.00 classification.
Double-Sided Wafer Lapper for Flatness Control
Laps both sides of semiconductor wafers simultaneously to achieve ultra-flat surfaces required for printing alignment in heading 8442 systems. Ancillary preparation machine per statistical wafer notes. Classified 8443.91.10.00.
Chemical Mechanical Wafer Polisher
CMP polisher planarizes semiconductor wafers using slurry for mirror-finish surfaces essential to printing processes in heading 8442 photolithography. Key ancillary machine in wafer prep sequence. Under 8443.91.10.00.