Semiconductor Vapor Phase Epitaxy Reactor Heat Exchanger from Japan
Shell-and-tube heat exchanger for VPE reactors, condensing precursor vapors and controlling epitaxial layer growth temperatures on wafers. Classified in HTS 8419.90.30.00 for heat exchange parts in semiconductor thin-film deposition equipment involving temperature change processes. Ensures uniform deposition without thermal runaway.
Duty Rate — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of Japan, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 12.5 percent, as provided for in U.S. note 52 to this subchapter
Import Tips
• Certify chemical compatibility with hydride precursors (e.g
• silane); include reactor integration schematics
• Common issue: undervaluation based on stainless vs exotic alloy construction