China Ceramic Alumina Tube manufacturer

High Thermal Conductivity 400mm Aluminum Nitride Ceramic

Product Details:
Place of Origin: China
Brand Name: Jinghui Ceramics
Certification: RoHS, REACH, ISO
Model Number: Customized
Payment & Shipping Terms:
Minimum Order Quantity: 1 piece per order
Price: Negotiable
Packaging Details: Export carton with wooden case
Delivery Time: 4~5 weeks after receiving the order
Payment Terms: T/T, Western Union, MoneyGram, Paypal, , L/C
Supply Ability: 10000 pieces per month

Detail Information

Material: Aluminum Nitride Product Name: Aln Ceramic Disc
Density: Over 3.30g/cm3 Color: Gray, Yellowish
Size: Max. OD 400mm Thickness: 0.30 Mm - 10 Mm
Feature: High Thermal Conductivity Usage: Heat Dissipation Substrate, LED Package, Power Module
High Light:

3.30g/cm3 aln ceramic sheet


aln ceramic substrate

Product Description

High Thermal Conductivity Aluminum Nitride AlN Ceramic Sheet For Semiconductor

The prime features of the AlN ceramic sheet
1. High thermal conductivity (170 ~220) W/m.k, it's 5~8.5 times higher than that of alumina
2. Similar coefficient of thermal expansion to that of silicon (Si), it helps to achieve high reliability of Si chip
3. High insulation resistance and voltage resistance strength, but low dielectric constant and dielectric loss
4. High mechanical strength, it's up to 450MPa and very dense ceramic body without any porosity
5. It offers very high purity up to 99%, also it's free of toxicity and meets RoHS, REACH regulation


The specification of the AlN Ceramic sheet

1. We are supplying with many round ceramic wafers, square & rectangular ceramic substrates
2. The typical thickness of AlN wafers covers 0.38mm, 0.5mm, 0.635mm, 1.0mm, 1.2mm, 1.5mm
3. The biggest diameter of the round ceramic wafer can be up to 400mm in 3mm, 4mm, 5mm thick
4. The max. side-length of  the square and rectangular ceramic wafer can be 400mm by 500mm
5. Surface treatment: it can be one-side, or double side polished, metalizing or sandblasting
6. The checklist of standard size with the typical thickness as below:
S/N Thickness Size
1 0.38

50.8 x 50.8mm

76.2 x 76.2mm

101.6 x 101.6mm

110 x 110mm

114.3 x 114.3mm

120 x 120mm

127 x 127mm

2 0.50
3 0.635
4 1.0
5 1.2
6 1.5

The description of the AlN ceramic sheet

Aluminum nitride ceramic (AlN) has excellent properties such as high thermal conductivity, high strength, high resistivity, small density, low dielectric constant, non-toxic, and thermal expansion coefficient matching with Si. It is a new type of ceramic material with excellent comprehensive performance. Due to its extremely high thermal conductivity, aluminum nitride can meet the heat dissipation requirements of high-power devices such as optical communication, microwave communication, LED, and high-speed rail. It is considered to be an ideal material for the packaging of new generation semiconductor substrates and electronic devices.

Property Datasheet of AlN Ceramic Wafers and Ceramic Sheets

General Properties Unit Value
Mechanical Purity % ≥99
Volume Density g/cm3 ≥3.30
Color   Grey
Porosity % 0
Compressive Strength MPa -
Bending Strength MPa 450
Elastic Modulus MPa 330
Fracture toughness Mpam1/2 3
Thermal Max. service temperature (Non-loading) 1800
Thermal Conductivity (25℃) W/m.k ≥170
Coefficient of Thermal Expansion (CTE) 1*10-6 m/k 4.6
Specific heat 1 x 103J/(kg·K) 0.74
Electrical Volume Resistivity (25℃) 1*1014
Insulation Breakdown KV/mm 25
Dielectric constant (1Mhz) (E) 8.7


Why choose us?

1.With 15 years of manufacturing experience in OEM, ODM


2. Powerful R&D, customized and mass production capability

High Thermal Conductivity 400mm Aluminum Nitride Ceramic 0


High Thermal Conductivity 400mm Aluminum Nitride Ceramic 1


3. In-house comprehensive manufacturing types of equipment       

High Thermal Conductivity 400mm Aluminum Nitride Ceramic 2


High Thermal Conductivity 400mm Aluminum Nitride Ceramic 3


4. Rigorous quality control system and processes

High Thermal Conductivity 400mm Aluminum Nitride Ceramic 4

High Thermal Conductivity 400mm Aluminum Nitride Ceramic 5

FAQs (Frequently Asked Questions)

Q1: When can I get the price?
A: We regularly quote within 12 hours after we get your inquiry. If you are in urgent need of getting the price.
Please call us or tell us in your email so that we will proceed with your inquiry as a priority.
Q2: Is it available to provide customized products?
A: We always support custom-made demand as per different materials, dimensions, and designs.

Q3. Are you a factory or trading company?
A: We are a direct manufacturer of technical ceramic components. You are welcome to visit our factory.

Q4: How to ensure quality?
A: We have a complete strict quality-control system, including IQC, IPQC, QA, OQC per ISO9001: 2008
Q5: What other products are you dealing with?
A: We also focus on a variety of metalized ceramics, high precision zirconia ceramic parts, ceramic seals.

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