9-Inch Wafer Calibration Quartz Glass Sheet with Ultra-High Flatness

This 9-inch wafer calibration quartz glass sheet is a high-precision semiconductor equipment calibration standard. Engineered with ultra-high flatness and tight dimensional tolerance, it matches standard 9-inch wafer specifications for daily equipment verification in lithography, prober, AOI inspection and optical metrology applications.

Product Parameters

Key Features

• Ultra-High Flatness – Precision polished surface with extremely tight flatness tolerance, ensuring reliable calibration results for semiconductor equipment.
• Uniform Optical Property – Consistent optical transmission across the entire plate surface, ideal for AOI and vision-based inspection system calibration.
• Low Internal Stress – Minimal thermal deformation and stress-induced warping, maintaining dimensional stability under varying environmental conditions.
• Chemical Cleaning Resistance – Resistant to standard semiconductor cleaning solvents, preserving surface quality after repeated cleaning cycles.
• Long-Term Stability – Dedicated calibration standard designed for repeated daily use without precision degradation over time.

Applications

1. Semiconductor Wafer Inspection

Master reference plate for 9-inch wafer dimension, flatness and warp inspection. Serves as a daily calibration standard for wafer AOI optical inspection equipment, unifying detection accuracy across production lines.

2. Lithography & Packaging Process

Alignment benchmark for lithography machines and die bonders. Regular calibration of equipment lens focus and platform positioning accuracy reduces production defects and improves yield consistency.

3. Prober Test Equipment

Reference plate for prober station coordinate calibration and platform flatness verification, ensuring precise wafer electrical testing accuracy in semiconductor manufacturing.

4. Optical Laboratory Calibration

Standard calibration glass for vision measuring machines and contour testers, used for routine instrument precision verification in metrology laboratories.

Advantages over Ordinary Glass & Common Quartz Sheet

Unlike ordinary glass plates and common quartz sheets, this calibration-grade quartz glass sheet features precision polished surfaces with strictly controlled flatness tolerance. It exhibits minimal thermal deformation and maintains stable precision after repeated chemical cleaning—making it a dedicated, industry-standard calibration part specifically designed for semiconductor production environments.