Ecer asks for your consent to use your personal data to:
Personalised advertising and content, advertising and content measurement, audience research and services development
Store and/or access information on a device
Your personal data will be processed and information from your device (cookies, unique identifiers, and other device data) may be stored by, accessed by and shared with 135 TCF vendor(s) and 65 ad partner(s), or used specifically by this site or app.
Some vendors may process your personal data on the basis of legitimate interest, which you can object to by do not consent. Contact our platform customer service, you can also withdraw your consent.
Your message must
be between 20-3,000 characters!
Submit Requirement
Thank You！
Your requirement has been sent. we will contact you quickly!
{"title":"High Thermal Conductivity Ceramic Substrates with Exceptional Bending Strength","imgUrl":"https:\/\/img.chinax.com\/nimg\/15\/cb\/38c6b90e2c3de334deeeb06b7ac2-200x200-1\/high_thermal_conductivity_ceramic_substrates_with_exceptional_bending_strength.jpg","attrs":{"Material":"SiC","Composition:SiC":"\uff1e85%","Color":"Black","Density":"\u22653.65g\/cm3"}}
{"title":"High-Performance Alumina Ceramic Tubes with 1700\u00b0C Sintering for Demanding","imgUrl":"https:\/\/img.chinax.com\/nimg\/f9\/e6\/ff0e8759c0dbbca40ba523309d0f-200x200-1\/high_performance_alumina_ceramic_tubes_with_1700_c2_b0c_sintering_for_demanding_industrial_applications.jpg","attrs":{"Brand Name":"KEGU","Place of Origin":"China","Price":"200-500 yuan\/kg","Payment Terms":"L\/C,D\/A,D\/P,T\/T,,"}}
{"title":"Precision Ceramic Robotic Arms and Fingers with Thermal Stability and Dimensiona","imgUrl":"https:\/\/img.chinax.com\/nimg\/3c\/ac\/198cf47f6468ec51c3e90d921a03-200x200-1\/precision_ceramic_robotic_arms_and_fingers_with_thermal_stability_and_dimensional_precision_for_semiconductor_wafer_handling.jpg","attrs":{"Model Number":"Customizable","Material":"SiC","Composition:SiC":"\uff1e85%","Color":"Black"}}
{"title":"High-Performance Aluminum Nitride Ceramic Parts with Exceptional Thermal","imgUrl":"https:\/\/img.chinax.com\/nimg\/d7\/b7\/945e4a6de25af39d6140f5a3cf10-200x200-1\/high_performance_aluminum_nitride_ceramic_parts_with_exceptional_thermal_conductivity_and_superior_electrical_insulation_for_contr.jpg","attrs":{"Material":"SiC","Composition:SiC":"\uff1e85%","Color":"Black","Density":"\u22653.65g\/cm3"}}
{"title":"High-Purity Alumina A998 (99.8%) Ceramic Rings for 200mm and 300mm Semiconductor","imgUrl":"https:\/\/img.chinax.com\/nimg\/5e\/20\/9c3b2f69139599a22e566681737f-200x200-1\/high_purity_alumina_a998_2899_8_25_29_ceramic_rings_for_200mm_and_300mm_semiconductor_tools_with_exceptional_plasma_resistance.jpg","attrs":{"Material":"SiC","Composition:SiC":"\uff1e85%","Color":"Black","Density":"\u22653.65g\/cm3"}}
{"title":"High Purity Alumina Ceramic Crucibles with Custom Sizes for High-Temperature","imgUrl":"https:\/\/img.chinax.com\/nimg\/e2\/45\/c8d1900924e41525e0637839a922-200x200-1\/high_purity_alumina_ceramic_crucibles_with_custom_sizes_for_high_temperature_resistance_in_sintering_and_melting.jpg","attrs":{"Model Number":"Customizable","Brand Name":"KEGU","Place of Origin":"China","Price":"200-500 yuan\/kg"}}
Engineered ceramic substrates form the foundation of modern electronic systems. Alumina (Al₂O₃), Aluminum Nitride (AlN), and Silicon Nitride (Si₃N₄) offer unique combinations of thermal, mechanical, and electrical properties, making them indispensable across power electronics, RF/microwave, and LED applications.
Material Property Comparison
Property
Al₂O₃ 96%
Al₂O₃ 99.6%
AlN
Si₃N₄
Apparent Density (g/cm³)
3.7-3.8
3.8-3.9
3.3
3.5
Vickers Hardness (GPa)
16
21
11
15
Bending Strength (MPa)
500
400
320
750
Elastic Modulus (GPa)
340
350
320
300
Thermal Conductivity (W/m*K)
24
28
180
55
CTE (10⁻⁶/K)
6.8-8.0
6.8-8.5
4.7-5.6
2.7
Dielectric Strength (kV/mm)
15
10
16
36
Volume Resistivity (Ω*m)
>10¹²
>10¹²
>10¹²
>10¹²
Dielectric Constant
9.8
9.9
8.9
8.5
Material Selection Guide
1. Alumina (Al₂O₃) Substrates - The Cost-Effective Standard
Alumina provides the optimal balance of performance and affordability, making it the most widely used ceramic substrate material.
Key Advantages:
Excellent cost-to-performance ratio
High mechanical strength and electrical insulation
Good thermal stability and chemical resistance
Typical Applications:
Standard thick-film and thin-film circuits
Heater elements, sensors, and resistor bases
RF shielding and general-purpose insulating components
Customization: Available in 96% to 99.7% purity; thickness from 0.25mm; surfaces from ground to polished; full metallization and complex shaping capabilities.
2. Aluminum Nitride (AlN) Substrates - High Thermal Performance
Aluminum Nitride is the premier choice for thermal management in high-power density applications, offering thermal conductivity rivaling beryllium oxide without associated toxicity concerns.
Key Advantages:
Very high thermal conductivity (180 W/m*K)
Excellent electrical insulation properties
Low coefficient of thermal expansion matching silicon
Critical Applications:
High-power LED arrays and laser diode carriers
Insulated Gate Bipolar Transistor (IGBT) modules
Microwave integrated circuits and high-frequency packages
Processing: Compatible with thick-film and thin-film metallization; available with polished surfaces for fine-line patterning.
Balancing Performance and Budget? → Choose Alumina (Al₂O₃)
Requiring Maximum Mechanical Durability? → Specify Silicon Nitride (Si₃N₄)
Need technical consultation? Our engineering team can help you select the ideal ceramic substrate material and processing options for your specific electronic circuit, thermal management, or high-reliability application.
