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Jinghui Industry Ltd.

Refractory Silicon Nitride Si3N4 Ceramic Wafer

Refractory Silicon Nitride Si3N4 Ceramic Wafer

Payment Type: T/T,Paypal,Money Gram,Western Union
Min. Order: 1 Piece/Pieces
Delivery Time: 35 Days

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Basic Info

    Model No.: Standard or custom-made

    Color: Gray

    Material: Silicon Nitride

    Precision Process: Fine Grinding, Machining

    Min. Wall Thickness: 0.30mm

    Max. Size: 400mm

    Application: For High Thermal Shock Application

    Features: High Thermal Shock

    Density: Higher Than 3.22g/cm3

Additional Info

    Packaging: Export carton

    Productivity: 100000 pieces/month

    Brand: Jinghui ceramics

    Transportation: Ocean,Land,Air

    Place of Origin: China

    Supply Ability: 50000 pieces/month

    Certificate: RoHS

    HS Code: 8547100000

    Port: Shenzhen,HongKong

Product Description

High Thermal Shock Silicon Nitride Si3N4 Ceramic wafer

The specification of the Si3N4 ceramic wafer

1. The typical thickness of silicon nitride substrate covers 0.30mm, 0.5mm, 0.635mm, 1.0mm

2. We are supplying with many round ceramic wafer, square & rectangular Ceramic Substrate
3. The biggest diameter of round ceramic wafer can be up to 400mm in 3mm, 4mm, 5mm thick
4. The max. side-length of square and rectangular ceramic substrate can be 400mm by 500mm
5. Surface treatment: it can be one-side, or double side polished to be Ra0.4 or better

The main features of the Si3N4 ceramic wafer
1. High thermal conductivity ( up to 70 W/m.k), 3 times that of Alumina Ceramic Substrate;

2. The thermal expansion coefficient (3.1×10-6/℃) matches the semiconductor silicon material (3.5-4.0×10-6/℃);
3. The bending strength is higher than that of the alumina substrate,
which is twice that of the alumina substrate;

4. Excellent electrical performance, with extremely high insulation resistance and low dielectric loss;
5. The compatibility of circuit materials is good, and multi-layer wiring can be performed to achieve miniaturization of the package;
6. High thermal shock resistance, from 0 ℃ to 200 ℃ and then cool down, repeat 10000 times;
7. Chemical resistance, resistant oxidization , acid, alkali corrosion, service life-span up to 10 years.

The description of the Si3N4 ceramic wafer

Silicon Nitride (Si3N4) is a widely used technical ceramic material in high temperature application, it has high strength in both room temperature and high temperature condition, the strength of silicon nitride can be kept up to 1200℃; the low coefficient of thermal expansion make it a ceramic material possessing excellent thermal shock resistance; at the same time, it also has good thermal conductivity.
Except for the excellent properties in thermal application, silicon nitride also has good mechanical, chemical, electrical properties. It has good strength, good flexture strength and wear resistance;it is a good performance electrical insulation ceramic

The application of the silicon nitride ceramic parts
Silicon nitride ceramics are widely used for precision shafts and axles in high wear environments,rotating bearing balls and rollers,cutting tools, engine wear parts, tappet shims,turbine blades, vanes, buckets, metal tube forming rolls and dies.

Related products of Si3N4 ceramic wafer

AlN Ceramic wafer Alumina ceramic substrate Aluminum Nitride Ceramic Substrate


We supply a broad range of ceramic substrate, including Alumina Ceramic substrate, zirconia ceramic substrate,

aluminum nitride ceramic substrate besides silicon nitride ceramic substrate.

Property Datasheet of Si3N4 Ceramic Wafers and Ceramic Substrates

Volume Density
Black gray
Compressive Strength
MPa ≥2500
Bending Strength
MPa 600
Elastic Modulus
MPa 300
Fracture toughness
Mpam1/2 7
Max. service temperature (Non-loading)

Thermal Conductivity (25℃)
Coefficient of Thermal Expansion (CTE)
1*10-6 m/k
Specific heat
1 x 103J/(kg·K)
Volume Resistivity (25℃)
Insulation Breakdown
Dielectric constant (1Mhz)

Production capability and our strength for ceramic wafers

1. Support customized prototyping and R&D needs

High Precision Machining

2. High Precision CNC Machining Workshop

CNC Machining

4. Customized capability from small size to big-size

Customized Production Capability


We have own in-house comprehensive types of manufacturing equipment, including forming machines,

vacuum sintering furnace, High precision machining equipment, polishing machines, metalizing production lines.

Inspection and Quality-control Capability for ceramic wafers

1. High Precision Inspection Tools

High Precision InspectionInspection Equipment

2. OQC Inspection Workshop



1. We have complete and rigorous quality-control system, including IQC, IPQC, QA and OQC per ISO9001.

2. We also have professional quality assurance team and precision inspection equipments for quality-control.

FAQs (Frequently Asked Questions)

Q1:Is it available to provide customized products?

A: We always support custom-made demand as per different dimensions, design and surface treatment.

Q2. When can I get the price?

A: We regularly quote within 24 hours after we get your inquiry. If you are in urgent need of get the price,

please call us or tell us in your email so that we will proceed your inquiry as priority.

Q3. How long can I expect to get the sample?

A: After you pay the sample charge and send us the confirmed files, the samples will be ready for delivery in 4 weeks.

Q4:How long does the whole procedure being worked out?

A: After you place an order, the manufacturing time is about 25 working days.

Q5. Are you a factory or trading company?

A: We are a professional manufacturer. You are welcome to visit our factory.

Looking for ideal Si3N4 Ceramic Wafer Manufacturer & supplier ? We have a wide selection at great prices to help you get creative. All the Silicon Nitride Wafer are quality guaranteed. We are China Origin Factory of Silicon Nitride Ceramic Wafer. If you have any question, please feel free to contact us.

Product Categories : Advanced Ceramic Plate > Ceramic Substrate

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