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Biotain Crystal Co., Ltd. is a leading Chinese manufacturer of high-purity crystal substrates, optical components, conductive films, and deposition materials. Trusted by research institutions and industrial partners in over 30 countries since 2013.
Established in October 2013 and headquartered in Fujian, China, Biotain Crystal Co., Ltd. is a high-tech enterprise specializing in the research, development, and manufacturing of advanced crystal materials.
We are proud to be among the few global suppliers capable of producing SrTiO3 single crystals with diameters up to φ35mm — a rare capability in the international market. Our product portfolio includes over 60 types of single crystal substrates, optical windows, conductive glass, ceramic substrates, and deposition materials.
Our materials serve cutting-edge applications in semiconductors, photonics, optoelectronics, solar energy, and scientific research. With a strong focus on quality and innovation, we export to more than 30 countries and collaborate with leading universities and industrial partners worldwide.
Advanced crystal growth and processing facility in Longyan, Fujian
Comprehensive selection of high-purity crystal materials for research, industrial, and commercial applications. All products meet strict quality standards and are available in custom dimensions.
High-purity monocrystalline silicon wafers with various orientations (100), (111), resistivity, and thickness options. Ideal for semiconductor and MEMS applications.
Substrate Material
C-plane, R-plane, and A-plane sapphire wafers with high transparency and thermal conductivity. Used in LED, laser, and high-power electronic devices.
Single Crystal
Indium Tin Oxide (ITO) coated glass substrates with excellent conductivity and optical transparency. Widely used in touch panels, displays, and solar cells.
Conductive Glass
High-quality silicon carbide substrates for power electronics and RF devices. Available in n-type and semi-insulating types with precise doping control.
Semiconductor Wafer
Ultra-pure fused silica optical windows with high UV transmission and low thermal expansion. Suitable for laser, spectroscopy, and aerospace applications.
Optical Window
Aluminum Nitride (AlN) ceramic plates with exceptional thermal conductivity and electrical insulation. Ideal for high-power LED and power module packaging.
Ceramic Substrate
Gallium Nitride single crystal substrates for blue/green LEDs, laser diodes, and high-electron-mobility transistors (HEMTs). High crystalline quality and low defect density.
Wide Bandgap
High-density TiO2 sputtering targets for thin-film deposition in photocatalytic, solar cell, and optical coating applications. Purity: 99.99% (4N).
Sputtering Target
Lithium Niobate wafers available down to 20μm thickness. Used in surface acoustic wave (SAW) devices, modulators, and nonlinear optics.
Photoelectric Substrate
High-purity MgF2 evaporation materials for optical coatings with excellent UV transparency. Supplied in granules, pellets, or custom shapes.
Evaporation Material
Strontium Titanate single crystal substrates with diameters up to φ35mm. Used in oxide electronics, superconductivity research, and epitaxial growth.
Specialty Substrate
Multispectral ZnS optical windows with high transmission from visible to long-wave infrared (LWIR). Ideal for thermal imaging and defense systems.
IR WindowWe combine advanced technology, rigorous quality control, and customer-focused service to deliver superior crystal materials.
Materials with purity levels up to 99.999% (5N) ensure optimal performance in sensitive applications.
Strict quality control throughout production, with full traceability and certification documentation.
We offer custom sizes, doping levels, surface finishes, and packaging to meet your specific requirements.
Large inventory of standard products ensures short lead times. Custom orders processed efficiently.
Get answers to common inquiries about our products and services.
Lead times vary depending on the product and specifications. Standard items ship within 1-2 weeks. Custom crystal growth may take 4-8 weeks. We provide estimated delivery dates with every quotation.
Yes, we provide certificates of analysis (COA) for all products, including purity, dimensions, orientation, resistivity (if applicable), and other relevant specifications.
Yes, we specialize in ultra-thin substrates. For example, we offer LiTaO3 and LiNbO3 wafers as thin as 20μm. Please contact us with your thickness requirements.
We accept T/T (bank transfer), PayPal, and Western Union. Terms are typically 100% payment before shipment for new customers.
Yes, we provide sample quantities for evaluation purposes. Contact our sales team to request samples of most products.
Contact Biotain Crystal for product inquiries, technical support, or custom solutions.
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