Wafer Lapping Machine Vacuum Chucking Pump from Mexico
High-precision vacuum pump part for wafer lappers that hold wafers during flatness correction in semiconductor preparation. Covered by HTS 8414.90.91.80 statistical note for wafer grinders, lappers and polishers. Critical for achieving surface flatness tolerances before fab processing.
Duty Rate — Mexico → United States
10%
Rate breakdown
9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
Import Tips
• Flatness specification sheets linking to lapping tolerance requirements
• Cleanroom class 100 certification mandatory
• Common error: reclass to general lab pumps without semi proof