BK7 Glass Prism Blank from Germany
MgF2 optical window for excimer lasers and deep UV lithography at 193nm. HTS 9001.90.90.00 unmounted crystalline optical element with lowest refractive index. Essential for ArF laser systems.
Duty Rate — Germany → United States
10%
Rate breakdown
9903.05.3910%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.97, articles the product of a member state of the European Union, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 10 percent, as provided for in U.S. note 52 to this subchapter
Import Tips
• VUV transmission (>80% at 193nm) data essential
• Hygroscopic nature requires sealed packaging documentation
• Semiconductor fab end-use may trigger additional certifications