Semiconductor Vapor Phase Epitaxy Reactor Heat Exchanger from China
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 — China → United States
37.5%
Rate breakdown
9903.88.0125%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]
9903.05.3112.5%Section 301 (forced labor) — additional 12.5% ad valorem on products of China
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