We carry out everything from crystal growth of single crystal sapphire to cutting, grinding, polishing, and special processing consistently!
Our sapphire ingots are produced in our own factory in China, and we also source them from partner factories, primarily using the Kilopros method.
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basic information
■ Material: Single crystal sapphire ■ Manufacturing method: Kyropoulos ■ Raw material: Alumina 99.996% ■ Applications: Substrates/LED substrates, SOS substrates, optical window materials, various components ■ Diameter: Φ1″, Φ1.5″, Φ2″, Φ2.5″, Φ3″, Φ4″, Φ4.5″, Φ6″, Φ8″, Φ10″, Φ12″, special specifications available * Square ingots are also available. ■ Length: 40–200mm, special specifications available ■ Defect zone: 15% or less, special specifications available ■ Crystal orientation: C-plane, A-plane, R-plane, M-plane ■ Orientation tolerance: ±0.1° ■ Quantity: From 1 piece to several thousand pieces (please feel free to consult with us.) ■ Price: Aiming for the lowest price in the industry.
Price range
Delivery Time
P4
※From as short as 3 days (please feel free to consult with us).
Applications/Examples of results
■ For substrates: LED substrates, SOS substrates, others ■ For windows: Optical windows, smartphone cover glass, watch windows, camera windows, others ■ For machinery: Components, for machining tests, others ■ Sapphire seed
Company information
The doujin industry provides various semiconductor materials and precision processing. We handle main products such as silicon, sapphire, SiC, GaN, quartz, alumina, and sintered SiC, and we have established a system that allows for integrated production from crystal growth to wafer processing in-house. In addition to standard semi-products, we also offer custom solutions, characterized by our flexibility in responding to requests regarding size, processing type, and quantity. We also handle crystal materials such as silicon, sapphire, SiC, GaN, LN, LT, quartz, GaAs, CaF2, MgF2, as well as consumables like quartz, fine ceramics, polishing materials, wafer cases, wire saw equipment, and diamond wires. The doujin industry is globally expanding its business from material procurement to processing. Strong support from overseas group companies, partner companies, and networks forms an important foundation of our capabilities. Through over 20 years of experience in trade between Japan, China, Korea, and Taiwan, we have built unique trade expertise and networks.
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