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Product Description
Product Introduction
Copper Clad Laminate (CCL) Material – Strontium Titanate (SrTiO₃).Strontium Titanate (SrTiO₃) is an advanced ceramic dielectric material known for its high dielectric constant, thermal stability, and compatibility with high-frequency applications. When used as a dielectric filler in Copper Clad Laminate (CCL) materials, SrTiO₃ enhances the electrical insulation and signal performance of printed circuit boards (PCBs), particularly for RF, microwave, and high-speed digital applications.
CCLs are critical base materials for multilayer PCBs, consisting of dielectric substrates laminated between copper foils. By incorporating Strontium Titanate into the resin or substrate layer, the laminate achieves improved dielectric performance—such as increased permittivity, reduced signal loss, and greater reliability under thermal and electrical stress. SrTiO₃ is particularly valuable in next-generation electronics requiring compact design, high data transmission speeds, and low-loss signal pathways.
Available in nano or submicron powders, our high-purity SrTiO₃ disperses easily into epoxy, polyimide, or PTFE resin systems. It provides stable dielectric properties over a wide frequency and temperature range, making it suitable for 5G communication boards, aerospace electronics, automotive radar systems, and advanced computing hardware.
Physical Properties
| Item | Spec | Remark |
| Particle Size Distribution (D50) |
0.2 ~ 30 μm |
Laser Particle Size Analizer |
| Water Content (wt%) |
0.2 ~ 30μm ： < 0.5 |
105℃ × 1Hr |
| Ignition Loss (wt%) |
0.2 ~ 30μm ： < 1.0 |
800℃ × 1Hr |
Chemical Composition
| Product No. | ST-1 Series | ST-2 Series | ST-3 Series |
| SrO/TiO2 ( Mole Ratio) | 1.000±0.01 | 1.000±0.02 | 1.000±0.03 |
| BaO(wt%) | <0.05 | <0.1 | <0.3 |
| Fe2O3 (wt%) | <0.01 | <0.03 | <0.1 |
| K2O+Na2O(wt%) | <0.01 | <0.03 | <0.1 |
| Al2O3 (wt%) | <0.1 | <0.2 | <0.3 |
| SiO2(wt%) | <0.1 | <0.2 | <0.3 |
Product Features
Strontium titanate (SrTiO₃) is a functional material with excellent dielectric properties, optical properties and thermal stability. It is widely used in microelectronic devices, optical materials, energy storage devices and superconducting research. The main features include:
1. High dielectric constant and low loss
SrTiO₃ has a high dielectric constant (εr > 300) and performs well in high-frequency electronic applications.
The low dielectric loss property makes it suitable for high-performance capacitors, microwave devices and RF components.
2. Excellent optical properties
SrTiO₃ has a high refractive index (n ≈ 2.4) and is suitable for optical lenses, lasers and optoelectronic materials.
Its excellent nonlinear optical properties make it suitable for optical modulators, laser frequency doubling and holographic storage.
3. Compatible with high-temperature superconducting applications
SrTiO₃ is an ideal high-temperature superconducting substrate material, commonly used in superconducting films such as yttrium barium copper oxide (YBCO).
It has excellent lattice matching ability and is suitable for the research and development of advanced electronic materials.
4. Excellent thermal stability
It can still maintain its dielectric properties in high temperature environment, and is suitable for high temperature electronic components and heat-resistant coatings.
Suitable for thermistors, infrared detectors and high temperature sensors.
5. Suitable for composite with a variety of functional materials
It can be composited with barium titanate (BaTiO₃), barium lanthanum titanate (BLT), ferroelectric materials, etc. to improve the comprehensive performance of the material.
It is widely used in electronic ceramics, functional composite materials and energy storage materials.
FAQ
1: Why is Strontium Titanate used in CCL materials?
SrTiO₃ is added to enhance the dielectric performance of the laminate, improving insulation, reducing signal loss, and supporting stable operation at high frequencies.
2: What resin systems is SrTiO₃ compatible with?
It is compatible with common CCL resin systems such as epoxy, PTFE, and polyimide. Surface-modified grades are available to improve dispersion and bonding.
3: What particle size is recommended for CCL applications?
Nano to submicron particle sizes (30–200 nm) are ideal to ensure uniform mixing and minimal surface roughness in the final laminate.
4: Does SrTiO₃ affect the thermal properties of the laminate?
Yes, it improves thermal conductivity and heat resistance, which is beneficial for high-power and high-density electronic applications.
5: Is this material RoHS compliant?
Yes, our SrTiO₃ powders meet RoHS and environmental compliance standards and are free from hazardous substances.
6: Can SrTiO₃ be used in multilayer CCLs?
Absolutely. It is widely used in high-performance multilayer PCB structures where signal integrity and miniaturization are key.
