Shanghai Xinkehui New Material Co., Ltd.

4 Inch Sapphire Wafer

Product Details:

Place of Origin:
Brand Name:
Model Number:

Payment & Shipping Terms:

Minimum Order Quantity:
Price:
Packaging Details:
single wafer package in 100-grade cleaning room
  • Description

Product Introduction Of 4 Inch Sapphire Wafer

A 4 inch sapphire wafer refers to a sapphire disc with a diameter of 4 inches (approximately 101.6 millimeters). These discs are typically made from single-crystal sapphire material and are used for various applications in industrial and scientific fields. Sapphire wafers possess excellent optical, mechanical, and chemical properties, making them widely applicable across many domains.

Product Advantage Of 4 Inch Sapphire Wafer

4 inch sapphire wafers have many special properties that make them useful in a variety of applications. Here are some of its key features:

  • Hardness: Sapphire is a very hard material, with a Mohs hardness of 9, second only to diamond. This allows sapphire wafers to perform well in environments that require wear and scratch resistance, such as use in optical and electronic equipment.
  • Transparency: Sapphire has excellent optical transparency, especially in the visible and near-infrared spectral ranges. This makes it widely used in optical sensors, lasers, optical windows and other fields.
  • Chemically Inert: Sapphire is highly resistant to many chemicals, including acids, alkalis, and solvents. This gives it excellent stability in chemical environments and can be used to make chemical sensors, reactors, and other equipment that require corrosion resistance.
  • Thermal Conductivity: Sapphire has a relatively high thermal conductivity, which means it conducts heat efficiently. This makes it advantageous in high-temperature applications such as heat sinks for optics, radiators for lasers, etc.
  • Electrical insulation: Sapphire is an excellent electrical insulator and has good electrical insulation properties. This makes it useful as an insulating layer or electrically isolating element in electronic devices.
20211206184803_80122 4 Inch Sapphire Wafer

Product Application Of 4 Inch Sapphire Wafer

The 4 inch sapphire wafer has excellent optical, mechanical and chemical properties, so it has a wide range of applications in many fields.

1. Optical Windows and Lenses: Due to its excellent transparency and hardness, sapphire wafers are commonly used to manufacture high-performance optical windows and lenses, particularly in laser systems and optical sensors.

2. Substrates for Optical Coatings: Sapphire wafers serve as substrates for optical coatings, facilitating the production of high-quality optical coatings such as mirrors and filters.

3. Electronic Devices: Thanks to sapphire’s electrical insulation properties, sapphire wafers are often employed as insulation layers or bases in electronic devices, such as high-power electronic devices and microelectronics.

4. Chemical Sensors: Sapphire’s resistance to chemical substances makes sapphire wafers suitable for manufacturing chemical sensors and reactors.

5. High-Temperature Applications: With its excellent thermal conductivity and chemical inertness, sapphire wafers are frequently utilized in devices for high-temperature environments, such as heat sinks for optical devices and radiators for lasers.

_20240429171211 4 Inch Sapphire Wafer
Sapphire Wafer Application

Product Specification Of 4 Inch Sapphire Wafer

Item 4-inch C-plane(0001) 650μm Sapphire Wafers
Crystal Materials 99,999%, High Purity, Monocrystalline Al2O3
Grade Prime, Epi-Ready
Surface Orientation C-plane(0001)
C-plane off-angle toward M-axis 0.2 +/- 0.1°
Diameter 100.0 mm +/- 0.1 mm
Thickness 650 μm +/- 25 μm
Primary Flat Orientation A-plane(11-20) +/- 0.2°
Primary Flat Length 30.0 mm +/- 1.0 mm
Single Side Polished Front Surface Epi-polished, Ra < 0.2 nm (by AFM)
(SSP) Back Surface Fine ground, Ra = 0.8 μm to 1.2 μm
Double Side Polished Front Surface Epi-polished, Ra < 0.2 nm (by AFM)
(DSP) Back Surface Epi-polished, Ra < 0.2 nm (by AFM)
TTV < 20 μm
BOW < 20 μm
WARP < 20 μm
Cleaning / Packaging Class 100 cleanroom cleaning and vacuum packaging,
25 pieces in one cassette packaging or single piece packaging.

Manufacturer Introduction Of 4 Inch Sapphire Wafer

I am very happy to introduce to you our 4-inch sapphire wafer. Shanghai Xinkehui Materials Co., Ltd. is a manufacturer specializing in the production and sales of sapphire wafers, sapphire substrates, color sapphire and other optical products, especially in sapphire wafers. We have always been the industry leader in terms of production.

Whether you are working in optics, electronics or chemistry, our 4-inch sapphire wafers provide you with the ideal solution. It is widely used in various applications such as lasers, optical sensors, chemical sensors, high-power electronic devices, etc.

Sapphire wafers have excellent optical transparency, high hardness, excellent chemical inertness and thermal conductivity. This allows it to perform well in harsh environments and provide long-term stability and reliability.

We provide customized solutions to meet your specific needs and application scenarios. Whether you require specific sizes, thicknesses or special finishes, we have the right product for you.

Our sapphire wafers undergo strict quality control and inspection to ensure that each product meets the highest standards. You can confidently choose our products to meet your needs.

We have an experienced technical team that can provide you with professional technical support and after-sales service. No matter what problems you encounter during use, we will do our best to help you.

H81718e6e21944f76a7fce8685a5eeff2B-1024x645 4 Inch Sapphire Wafer

Open chat
Hello 👋
Can I help you?