Pneumatic Needle Valve for Precision Dopant Injection from Japan
Micrometer-controlled pneumatic needle valve for dopant precursor injection in semiconductor crystal growth. Under HTS 8481.80.9040 as other precision pneumatic valve. 0.001" resolution flow control.
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
• Document dopant precursor compatibility (POCl3, PH3); include stem resolution specs; SEMI MFAS flow accuracy certification