Substrates and Wafers for Magnetic and Ferroelectric Thin Film Substrates

Showing all 13 results

Fe:SrTiO3 Crystals and Substrates

Enhanced Dielectric and Magnetic Properties: The iron dopants in the SrTiO3 lattice significantly enhance the dielectric and magnetic properties of the substrate, making it ideal for applications requiring strong magnetic and dielectric responses.

Precise Doping Concentrations: Kingwin Optics provides Fe:SrTiO3 substrates with precise iron doping concentrations of 0.05% and 0.04%, allowing for tailored performance to meet specific application requirements.

High-Quality Substrates: The Fe:SrTiO3 substrates are manufactured with high precision and quality control, ensuring consistent performance and reproducibility in research and industrial applications.

Versatile Applications: The unique combination of enhanced dielectric and magnetic properties makes Fe:SrTiO3 substrates suitable for a wide range of applications, including FETs, HEMTs, MRAM, and magnetic field sensors.

Applications: Field-Effect Transistors (FETs), High Electron Mobility Transistors (HEMTs), Magnetoresistive Random-Access Memory (MRAM), Magnetic Field Sensors, etc.

Read more
GGG Substrates and Wafers

Crystal Structure & Purity: Our GGG substrates and wafers feature a cubic crystal structure with a lattice constant of a=12.376Å, ensuring excellent structural match with YIG and BIG thin film magneto-optical materials. The purity level of 99.95% guarantees superior performance and reliability.

Thermal Expansion Coefficient: The thermal expansion coefficient of GGG is carefully controlled to match that of the epitaxial films, minimizing stress during thermal cycling and ensuring stable device performance over a wide temperature range.

Chemical Stability: GGG exhibits excellent chemical stability, resistant to decomposition and corrosion during the high-temperature epitaxial growth processes, preserving the quality of the deposited films.

Optical Properties: With a refractive index of 1.95, GGG substrates and wafers are ideal for applications requiring precise optical control, such as optical isolators and waveguides.

Surface Quality: The wafers are polished to a surface roughness of Ra≤5Å (5×5µm), ensuring smooth surfaces for defect-free epitaxial growth and enhanced device performance.

Customization: Kingwin Optics offers customized GGG substrates and wafers in various dimensions, thicknesses, and orientations to meet the specific requirements of our customers.

Application Areas: Magneto-Optical Devices, Microwave Devices, Magnetic Bubble Memory, Integrated Optics, etc.

Read more
LaAlO3 Substrates

Perovskite Crystal Structure: Offers a good lattice match to multiple materials with similar structures, facilitating epitaxial growth.

Wide Bandgap: Ensures high performance in electronic applications, especially at high frequencies.

Thermal Stability: Maintains integrity and performance in high-temperature environments.

Low Dielectric Loss: Suitable for high-frequency electronic applications due to minimal energy dissipation.

Applications: Electronics, Optics, Epitaxial Growth, Capacitors, Material Growth, etc.

Read more
LSAT Substrates

Mixed Perovskite Structure: Ideal for various thin film growth applications due to its stable and robust crystal structure.

Transparency and Hardness: LSAT is a transparent oxide with significant hardness, making it durable and suitable for various research and industrial applications.

Applications: Epitaxial Growth of Ferroelectric Thin Films, High-Temperature Superconductors (HTS), Epitaxial Oxides and Heterostructures, Semiconductors, etc.

Read more
MgAl2O4 Substrates

Cubic Crystal Structure: Provides high mechanical strength and structural stability.

Wide Spectral Optical Transmittance: Exhibits optical transmittance over a wide range from UV to IR.

Low Dielectric Loss: Suitable for high-frequency applications due to minimal energy loss.

Applications: Optical and Photonic Devices, Bulk Acoustic Wave and Microwave Devices, Epitaxial Growth of III-V Nitrides, GaN Laser Diodes (LD) Cavities, etc.

Read more
MgO Substrates

Purity and Uniformity:

The MgO crystals used in our substrates exhibit exceptional purity, ensuring consistent performance across the entire product range.

Microscopically, the majority of MgO crystals have a grain size of at most 5 μm, ensuring a uniform microstructure that enhances overall reliability.

Electrical Insulation:

With an electrical insulation resistance of at least 10^10 Ω·cm at 300°C, our MgO Substrates are ideal for electrically insulating applications.

The ceramics have a dielectric constant of at most 10 at 100 kHz, making them suitable for high-frequency circuits and devices.

Thermal Conductivity:

The substrates boast a heat conductivity of at least 0.08 cal/cm·sec·°C at normal temperature, allowing for efficient heat dissipation in demanding environments.

Resistance to Humidity:

The MgO ceramics used in our substrates demonstrate excellent resistance to humidity, ensuring long-term stability and reliability in various climate conditions.

Surface Finish:

Both sides of the substrates are polished to a surface roughness (Ra) of ≤ 0.5 nm, providing a smooth surface for high-precision applications.

Applications: Optical Devices, High-Temperature Superconductors, Magneto-Optic Films, THz Band Generators/Receivers, Semiconductor Processing, etc.

Read more
Nb:SrTiO3 Crystals and Substrates

Conductivity: The incorporation of niobium imparts conductivity to NSTO crystals, which is a significant advantage over undoped STO. This conductivity enables their use in electronic devices and thin film growth applications where electrical properties are crucial.

Structural Similarity to STO: NSTO crystals retain the excellent lattice match and physical properties of STO, making them ideal substrates for epitaxial growth of materials with Perovskite structures.

Customizable Doping Concentrations: NSTO crystals are available with various niobium doping concentrations, such as 0.05%, 0.1%, 0.5%, and 0.7%, allowing researchers and manufacturers to select the optimal doping level for their specific applications.

Versatile Film Growth Technologies: Similar to STO, NSTO substrates can accommodate diverse film growth technologies, including Magnet Sputtering, Pulsed Laser Deposition (PLD), Vaporization, MOCVD, CVD, and laser MBE.

Applications: Electronic Devices, Thin Film Growth Substrates, Optical Windows, Research and Development, etc.

Read more
Nd:SrTiO3 Crystals and Substrates

Excellent Lattice Matching: Nd:SrTiO3 has a similar crystal structure to SrTiO3, ensuring good lattice matching with perovskite structure materials, which is crucial for epitaxial growth and device performance.

Customizable Nd Concentration: Kingwin Optics provides Nd:SrTiO3 substrates with a precise Nd concentration of 0.05%, allowing for tailored electrical and optical properties to meet specific application requirements.

Enhanced Electrical Properties: The doping of neodymium introduces conductivity to the SrTiO3 lattice, enhancing the electrical properties of the material and making it suitable for electronic and optoelectronic applications.

Structural Stability: Nd:SrTiO3 maintains the structural stability of SrTiO3, ensuring reliability and durability in various environments and applications.

Optical Transparency: The single crystal nature of Nd:SrTiO3 substrates ensures optical transparency, making them suitable for optical applications where transparency is essential.

High-Quality Substrates: Kingwin Optics’ Nd:SrTiO3 substrates are manufactured with high precision and quality control, ensuring consistent performance and reproducibility in research and industrial applications.

Applications: Electronic Devices, Thin Film Growth, Research and Development, etc.

Read more
Sapphire (Al2O3) Substrates and Wafers

Versatility: Sapphire Wafers and Substrates are suitable for a wide range of applications, including III-V and II-VI compound thin film growth for semiconductors, Light Emitting Diodes (LEDs), high-temperature superconducting (HTSC) thin films, Microelectronic ICs (Silicon on Sapphire Integrated Circuit, SOS), Hybrid Microelectronic applications, and ferromagnetic/ferroelectric thin film growth.

Uniform Dielectric Constants: A-plane Sapphire Substrates and Wafers offer uniform dielectric constants and high electrical insulation, making them suitable alternatives for Hybrid Microelectronic applications, including HIC and MCM.

High-Speed Silicon On Sapphire (SOS): R-plane Sapphire Substrates and Wafers are ideal for the hetero-epitaxial deposition of silicon for Microelectronic ICs, enabling high-speed performance.

MOCVD Growth: C-plane Sapphire Substrates and Wafers are mainstream options for Metal Organic Chemical Vapor Deposition (MOCVD) growth of a series of III-V and II-VI compound thin films, including GaN, AlN, AlGaN, and InGaN, used in manufacturing blue, violet, and white light-emitting diodes (LEDs) and blue laser diodes (LDs).

Ferroelectric Thin Film Growth: C-plane Sapphire Substrates and Wafers are also suitable for the growth of ferroelectric thin films, such as (Pb, La)(Zr, Ti)O3 (PLZT), making them candidates for manufacturing new functional electronics.

Ferromagnetic Thin Film Growth: M-Plane Sapphire Substrates and Wafers are competent in the ferromagnetic thin film growth of Mn1−xS and other materials, making them suitable for applications such as solar-blind ultraviolet detection.

Applications: Semiconductors, Light Emitting Diodes (LEDs), High-Temperature Superconductors, Microelectronic ICs, Hybrid Microelectronic Applications, Functional Electronics, etc.

Read more
SGGG (Substituted GGG) Single Crystals and Wafers

Larger Lattice Constant: SGGG offers a larger lattice constant compared to GGG, which can be beneficial for applications requiring better lattice matching with epitaxial films or higher magneto-optical performance.

Improved Optical Properties: With low optical loss (<0.1%/cm), SGGG wafers provide superior optical transparency, making them ideal for applications where optical quality is paramount.

High Thermal Conductivity: The high thermal conductivity of SGGG (7.4 W m-1 K-1) ensures efficient heat dissipation during high-power operation, reducing thermal stress and improving device reliability.

High Laser Damage Threshold: With a laser damage threshold exceeding 1 GW/cm², SGGG crystals and wafers can withstand intense laser irradiation, making them suitable for high-power laser systems.

Customizable Compositions: The substitution of ions allows for tailored compositions to optimize specific properties, such as lattice constants, thermal expansion coefficients, or magneto-optical effects.

Surface Quality: Kingwin Optics ensures that SGGG wafers are polished to a high degree of smoothness, typically with a surface roughness of Ra ≤ 5Å, to support defect-free epitaxial growth.

Applications: High-Power Laser Systems, Magnetic Bubble Memory, Integrated Optics, Specialized Research & Development, etc.

Read more
SrTiO3 Substrates

Lattice Match:

Lattice constant: 3.905Å, closely matching high Tc superconductive material YBCO (3.88 Å).

Facilitates the epitaxial growth of HTS and many oxide thin films.

Crystal Structure:

Twin-less crystal structure.

Excellent physical and mechanical properties for film growth.

High Tc Films Compatibility:

Suitable for various high Tc films such as YBCO, Bi-system, and La-system.

Wide Applications:

Used for special optical windows and high-quality sputtering targets.

Compatible with multiple film growth technologies.

Applications: High-Temperature Superconductors (HTS), Optical Windows, Sputtering Targets, etc.

Read more
TGG (Terbium Gallium Garnet) Crystals and Substrates

High Faraday Rotation: TGG exhibits an exceptionally high Faraday rotation, making it an ideal material for optical isolators, circulators, and other magneto-optical devices. This high rotation enables efficient polarization control and isolation of optical signals.

Low Optical Absorption: With low optical absorption across a wide spectral range, TGG substrates provide excellent optical transparency, ensuring minimal loss of light during transmission. This feature is crucial for maintaining signal integrity in optical communication systems and other optical applications.

Good Thermal Stability: TGG demonstrates good thermal stability, allowing it to withstand temperature fluctuations without significant degradation of its optical or magneto-optical properties. This characteristic ensures reliable performance even under demanding operating conditions.

High Laser Damage Threshold: TGG crystals possess a high laser damage threshold, enabling them to withstand intense laser irradiation without damage. This feature makes them suitable for use in high-power laser systems and other applications where exposure to high-intensity laser light is expected.

High Chemical Stability: TGG exhibits high chemical stability, resisting corrosion and other forms of degradation when exposed to various environments. This property ensures long-term durability and reliability in a wide range of applications.

Applications: Optical Isolators and Circulators, High-Power Laser Systems, Magneto-Optical Recording, Integrated Optics, Research and Development, etc.

Read more
TiO2 (Titanium dioxide) Crystals and Substrates

Excellent Supportive Platform: TiO2 substrates offer an ideal platform for growing thin films of various materials, particularly VO2, which can be difficult to grow on other substrates.

Large Birefringence and Refractive Index: Optical grade rutile TiO2 single crystal substrates exhibit large birefringence and a high refractive index, making them suitable for spectral prism and polarizing devices such as optical isolators and beam splitters.

Superior Physical and Chemical Stabilities: Compared to YVO4, TiO2 crystals demonstrate better physical and chemical stabilities, ensuring reliable performance in various applications.

Applications: Thin Film Growth, Spectral Prism and Polarizing Devices, Optical Components, etc.

Read more