Bipolar Junction Transistor Test Wafer from China
Silicon test wafer with monitor BJT structures for semiconductor process control and yield monitoring. HTS 8541.29.00.40 applies to these unmounted transistor wafers used in fab qualification. Not intended for end-use but essential for manufacturing quality assurance.
Duty Rate — China → United States
50%
Rate breakdown
9903.91.0550%Effective with respect to entries on or after January 1, 2025, articles the product of China, as provided for in subdivision (f) of U.S. note 31 to this subchapter
9903.05.860%Articles provided for in subdivision (b) of U.S. note 52 to this subchapter
Import Tips
• Label as 'test/monitor wafers' with lot numbers matching fab records
• Ensure traceability documentation for R&D import exemptions if applicable