Sapphire Blank 118mm×74mm×8mm High Hardness for Infrared
Windows
Sapphire blanks/substrates refer to square or circular plate-like
materials obtained by orienting, cutting, and rough grinding
large-sized sapphire boules. They have not yet undergone final
precision polishing (CMP) or patterning processes and serve as
intermediate semi-finished products for manufacturing various
sapphire end products, such as wafers, optical windows, and cover
plates. The core material is α-aluminum oxide (α-Al₂O₃) single
crystal with a regular lattice structure.
ZMSH Services Introduction: We specialize in the research, development, and manufacturing of
high-performance crystal materials. In addition to providing sapphire blanks/substrates in various
specifications, our company possesses strong precision machining
capabilities to produce sapphire wafers (for LEDs and Micro-LEDs),
sapphire optical windows/domes (for photoelectric equipment and
military applications), sapphire rods/tubes (for semiconductor
equipment chamber liners), and custom-shaped sapphire components
according to customer drawings. We are committed to offering a one-stop solution from crystal
growth to precision processing.
Sapphire Blank Characteristics
- Extreme Hardness and Wear Resistance: Sapphire blank mohs hardness of up to 9, second only to diamond,
making it highly scratch-resistant and extremely durable.
- Excellent Optical Performance: Sapphire blank high transmittance across ultraviolet to infrared
wavelengths (0.15–5.5 μm), making it an ideal material for optical
windows.
- Outstanding Physical and Chemical Stability: Sapphire blank high-temperature resistance (melting point of
2053°C), thermal shock resistance, and strong chemical inertness.
Insoluble in strong acids and alkalis except hydrofluoric acid and
hot phosphoric acid.
- Good Electrical Insulation and Dielectric Properties: An excellent insulator with stable dielectric constants.
- High Purity and Low Defect Density: Sapphire blank as a single-crystal material, it has minimal
internal defects and extremely high purity, ensuring no
contamination in process environments.
Sapphire Blank Main Application Fields
① Semiconductor Lighting (LEDs): The mainstream substrate material for GaN-based LED epitaxial
growth. Over 90% of global LED chips use sapphire substrates.
②Consumer Electronics: Used as camera lens covers for smartphones, fingerprint sensor
covers, and screen covers for high-end wearables like the Apple
Watch, leveraging its scratch-resistant properties.
③Optics and Military Applications: Employed in missile radomes, infrared windows, electro-optical
pods, and laser windows, where it must withstand extreme conditions
such as high speed, high temperature, and rain erosion.
④Industrial and Scientific Research: Used as observation windows for semiconductor equipment, barcode
scanner windows, high-temperature viewports, and substrates for
scientific instruments.
Related Product Recommendations
1. Unpolished Sapphire Tubes KY Method Rough Blanks Custom Sizes
1. Q: What is a sapphire substrate used for?
A: It is primarily used as the foundational material for growing
GaN-based LED chips and as protective covers in high-end consumer
electronics.
2. Q: Why is sapphire used in LED manufacturing?
A: Sapphire offers excellent thermal stability, high hardness, and
a lattice structure compatible with GaN, making it ideal for
high-brightness LED production.
Tags: #Sapphire Blank, #Custom, #High Hardness, #Size 18mm×74mm×8mm, #High Hardness, #Infrared Windows
