What Is Quartz Wafer?
 

      A Quartz Wafer is a circular wafer-shaped substrate manufactured from high-purity fused quartz / fused silica (SiO₂). It offers excellent optical transmission, thermal stability, low thermal expansion, electrical insulation, and chemical resistance.

      Quartz wafers can be precision processed according to customer requirements, including dicing, edge finishing, grinding, single-side polishing, double-side polishing, drilling, slotting, and other customized processes, making them suitable for semiconductor, optical, MEMS, photonics, and research applications.

Manufacturing Process
 

      A typical quartz wafer manufacturing process includes:
 

High-Purity Quartz Material Selection
↓
Fused Quartz / Quartz Blank Preparation
↓
Wafer Cutting / Shaping
↓
Grinding & Thickness Control
↓
Edge Rounding / Edge Processing
↓
Single-Side or Double-Side Polishing
↓
Cleaning
↓
Dimensional, Thickness, TTV, Flatness & Surface Inspection
↓
Clean Packaging

Key Features

1. High Purity

Manufactured from high-purity quartz/fused silica, with material grades selectable according to application requirements.

2. Excellent Thermal Stability

Quartz has a very low coefficient of thermal expansion, providing good dimensional stability during temperature fluctuations and high-temperature processing.

3. Excellent Chemical Resistance

Suitable for many semiconductor and laboratory chemical environments.

4. Excellent Optical Transmission

High-purity fused silica offers broad spectral transmission from deep UV to near-IR wavelengths, depending on the material grade.

5. Excellent Electrical Insulation

Suitable as an insulating substrate and process carrier for selected electronic applications.

6. Precision Processing

Diameter, thickness, TTV, flatness, surface roughness, and edge geometry can be precisely controlled.

7. Customization Available

Dimensions, thickness, surface finish, holes, slots, and other features can be customized according to customer requirements.

Key Specifications
 

Applications

Semiconductor

Used in semiconductor processing, wafer-level processes, lithography-related applications, and selected equipment or research platforms.

MEMS｜MEMS

Used as an insulating, optical, or process substrate for MEMS fabrication.

Optics & Photonics

Used for UV optics, photonic devices, optical coatings, lasers, and precision optical systems.

R&D & Laboratory

Suitable for research experiments, thin-film deposition, materials research, and customized laboratory substrates.

FAQ

Q1. What is a Quartz Wafer?

A Quartz Wafer is a circular wafer-shaped substrate made from high-purity fused quartz/fused silica.

Q2. What material is used?

It is primarily made from high-purity fused quartz/fused silica (SiO₂).

Q3. What sizes are available?

Sizes can be customized. Common industry sizes include 2", 4", 6", 8", and 12".

Q4. Can you provide double-side polished quartz wafers?

Yes. Single-side polished (SSP) or double-side polished (DSP) quartz wafers can be supplied according to customer requirements.

Q5. Can holes or slots be added?

Yes. Drilling, slotting, and other customized machining can be provided according to the product design.

Q6. What information is required for quotation?

We recommend providing:

Diameter + Thickness + Material Grade + Surface Finish + TTV + Flatness + Roughness + Edge Profile + Quantity + Application

For customized products, a 2D drawing or 3D CAD file is highly recommended.

Q7. What makes quartz suitable for semiconductor applications?

Key reasons include high purity, low thermal expansion, excellent thermal stability, electrical insulation, and chemical stability.



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