Wafer Grinder Workholding Chuck
Vacuum/porous ceramic chuck for securing semiconductor wafers during grinding operations in 8456.30 precision machines. Maintains wafer flatness during thickness reduction for printed circuit fabrication processes.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If general ceramic laboratory ware
Plain ceramic workholding without machine-specific tolerances classifies in Chapter 69
If primarily functioning as vacuum pump parts
Workholding with principal vacuum function classifies with air/vacuum pumps
Not sure which classification is right?
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Import Tips & Compliance
• Specify porosity and vacuum specifications; provide flatness retention test data; certify ceramic material purity
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