Silicon Nitride Substrate Si3N4 Substrate Ceramic Substrate

Silicon nitride ceramic substrate is a new generation of semiconductor substrate materials, made of high-purity silicon nitride powder, with excellent thermal conductivity and insulation, high mechanical strength and hardness, small thermal expansion coefficient, good thermal shock resistance performance, widely used in semiconductors and integrated circuits, including power components, inverters, power modules, multi-device integrated circuits, etc.

Brand:
ATCERA
Item NO.:
AT-DHG-JB001

Materials
Silicon Nitride (Si3N4) Ceramic
Shapes
Substrate
Applications
Semiconductor , Electronics and Electricity

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Properties of Silicon Nitride Substrate

1. High temperature resistance, the maximum use temperature can reach 1300℃;

2. Large thermal conductivity, up to 95W/(℃*m), small thermal expansion coefficient, only 3*10-6/℃, with good thermal shock resistance;

3. High mechanical strength, good toughness, strong resistance to mechanical impact;

4. Good electric insulation, high breakdown voltage, large current carrying capacity;

5. It can resist erosion of various acid, alkali and other chemical substances, corrosion resistance is very good.

Applications of Si₃N₄ Substrate

Silicon nitride ceramic substrate is mainly used in semiconductor, electronics and other microelectronics device manufacturing, as the substrate of chips and electronic components, including integrated circuit (IC), radio frequency (RF) devices, piezoelectric components, photoelectric components, sensors, MEMS and other micro electronic devices. As a high-performance material, silicon nitride ceramic substrate can provide a stable support platform to ensure normal operation and performance of the components.

1. Electronic Industry Applications

Silicon nitride ceramic substrate has high insulation performance and excellent high temperature resistance, can meet the high reliability and high performance requirements of electronic components, mainly used in the manufacture of electronic components, such as electronic capacitors, resistors, magnetic components and so on. In addition, it can also be used to manufacture the medium layer of high-speed communication equipment to ensure the stable transmission of high-frequency signals.

2. Photoelectric Industry

Silicon nitride ceramic substrates can provide good thermal performance and mechanical strength, and are widely used in the photoelectric industry, especially in the manufacture of high-power leds, ensuring the stability and life of LED components. In addition, it can also be used to manufacture support materials for solar panels to enhance their mechanical strength and chemical resistance.

3. Electrical Industry

Silicon nitride ceramic substrate has excellent insulation performance and good heat dissipation, and can be used to manufacture various high-power electrical components, such as power modules, heating modules, etc., effectively ensuring the service life and reliability of electrical equipment.

Size Chart of Si₃N₄ Substrate

We are committed to delivering optimal silicon nitride ceramic substrate tailored to your exact specifications. Our dedicated team ensures meticulous adherence to your instructions, striving to exceed customer expectations. Additionally, we offer the flexibility of customized sizes to accommodate your unique requirements.

Drawing and specification requirement shall be provided if customized design request.

Machining Tolerance:

1. Diameter: ±0.003mm

2. Hole Depth: ±0.005mm

3. Surfance Roughness:Ra0.02

4. Cylindricity: ±0.002mm

5. Concentricity: ±0.002mm

6. Parallelism: ±0.002mm

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Drawing of Si3N4 Substrate Square and Rectangular

Si₃N₄ Substrate Square and Rectangular
Item No.	Length (mm)	Width (mm)	Thickness (mm)
AT-DHG-JB001	10	10	0.32
AT-DHG-JB002	20	20	0.32
AT-DHG-JB003	30	30	4.0
AT-DHG-JB004	40	40	0.5
AT-DHG-JB005	50	50	0.32
AT-DHG-JB006	50	50	0.635
AT-DHG-JB007	50	50	1.0
AT-DHG-JB008	50	50	2.0
AT-DHG-JB009	50	50	4.0
AT-DHG-JB010	50	50	9.0
AT-DHG-JB011	100	100	0.3
AT-DHG-JB012	100	100	0.5
AT-DHG-JB013	100	100	0.6
AT-DHG-JB014	100	100	1.0
AT-DHG-JB015	100	100	4.0
AT-DHG-JB016	100	100	9.0
AT-DHG-JB017	114	114	0.3
AT-DHG-JB018	114	114	0.5
AT-DHG-JB019	114	114	0.6
AT-DHG-JB020	114	114	1.0
AT-DHG-JB021	190	138	0.3
AT-DHG-JB022	190	138	0.5
AT-DHG-JB023	190	138	0.6
AT-DHG-JB024	190	138	1.0

Drawing of Si3N4 Substrate Round

Si₃N₄ Substrate Round
Item No.	Diameter (mm)	Thickness (mm)
AT-DHG-JB025	5	0.25
AT-DHG-JB026	5	0.32
AT-DHG-JB027	5	0.625
AT-DHG-JB028	5	1
AT-DHG-JB029	10	0.25
AT-DHG-JB030	10	0.32
AT-DHG-JB031	10	0.625
AT-DHG-JB032	10	1
AT-DHG-JB033	20	0.25
AT-DHG-JB034	20	0.32
AT-DHG-JB035	20	0.625
AT-DHG-JB036	20	1
AT-DHG-JB037	40	0.25
AT-DHG-JB038	40	0.32
AT-DHG-JB039	40	0.625
AT-DHG-JB040	40	1
AT-DHG-JB041	50	0.25
AT-DHG-JB042	50	0.32
AT-DHG-JB043	50	0.625
AT-DHG-JB044	50	1
AT-DHG-JB045	100	0.32
AT-DHG-JB046	100	1
AT-DHG-JB047	100	2
AT-DHG-JB048	150	0.32
AT-DHG-JB049	150	1
AT-DHG-JB050	150	2
AT-DHG-JB051	150	20

Technical Data of Silicon Nitride Materials

Si3N4 Type	Gas pressure sintering Si3N4	Hot pressing sintering Si3N4
Density (g/cm³)	3.2	3.3
Flexture strength (MPa)	700	900
Young Modulus (GPa)	300	300
Poisson's ratio	0.25	0.28
Compressive strength (MPa)	2500	3000
Hardness (GPa)	15	16
Fracture toughness (MPa*m^1/2)	5~7	6~8
Maximum working temperature (℃)	1100	1300
Thermal conductivity (W/m*K)	20	25
Thermal expansion coefficient (/℃)	3*10^-6	3.1*10^-6
Thermal shock resistance (ΔT ℃)	550	800

*This chart illustrates the standard characteristics of the silicon nitride materials commonly employed in the manufacturing of our Si₃N₄ products and parts. Please be aware that the attributes of customized silicon nitride products and parts may vary depending on the specific processes involved. Detailed parameter is decided by type and composition of stabilizing agent.

Usage Instructions

1. Collision and impact during use shall be to avoid damage;

2. Working temperature of silicon nitride ceramic substrate shall be strictly controlled, long time over temperature working shall be avoided;

3. Silicon nitride ceramic substrate has good corrosion resistance to acid, alkali, salt and other chemicals, but contact with hydrofluoric acid shall be avoided;

4. The surface of silicon nitride ceramic substrate is easy to be contaminated with dust and dirt, which may affect its performance and service life, therefore it shall be regularly cleaned during use to keep its surface clean and shiny.

Achieving High Performance with Silicon Nitride Ceramic Substrate

Valuable Information

Si₃N₄ Substrate Packing

Silicon nitride ceramic substrates are carefully packaged in appropriate containers to avoid any potential damage.

Customization Advantages

1. According to your application scenario, analyze the needs, choose the appropriate material and processing plan.

2. Professional team, quick response, can provide solutions and quotations within 24 hours after confirming the demand.

3. Flexible business cooperation mechanism, support at least one piece of quantity customization.

4. Quickly provide samples and test reports to confirm that the product meets your needs.

5. Provide product use and maintenance suggestions to reduce your cost of use.

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FAQ

Do you supply the materials unlisted on your website?

Although our primary focus is on advanced ceramic materials such as alumina, zirconia, silicon carbide, silicon nitride, aluminum nitride, and quartz ceramics, we are always exploring new materials and technologies. If you have a specific material requirement, please contact us, and we will do our best to fulfill your needs or find suitable partners.

Can you aid in material selection & ceramic product design?

Absolutely. Our technical team possesses profound knowledge of ceramic materials and extensive experience in product design. We are happy to provide you with material selection advice and product design support to ensure optimal performance for your products.

Do you have a minimum order value requirement?

We do not have a fixed minimum order value requirement. We always focus on meeting our customers' needs, and we strive to provide quality service and products regardless of the order size.

What services beyond ceramic products do you offer?

In addition to ceramic products, we also provide a range of additional services, including but not limited to: customized ceramic processing services based on your needs, using blanks or semi-finished blanks produced by yourself; if you are interested in outsourced ceramic packaging and metallization services, please contact us for further discussion. We are always committed to providing you with a one-stop solution to meet your various needs.

Do you offer international shipping services?

Yes, we do. No matter where you are located globally, we can ensure the safe and timely delivery of your order.

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