0.38mm 0.5mm 0.635mm 1mm Aluminum Nitride Rectangular Aln Ceramic Substrate

• Application: Refractory, Structure Ceramic, Industrial Ceramic
• Type: Ceramic Plates
• Usage: Bare Ceramic Circuit Board
• Forming Method: Tape Casting
• Features: High Thermal Conductivity, Cte Matching Si
• Density: Over 3.33G/Cm3
• Model NO.: JJBP-0141-0013
• Standard Thickness: 0.38mm, 0.5mm, 0.635mm, 1mm
• Thickness Tolerance: ±0.03 (Standard) / ±0.01 (Best)
• Length and Width Tolerance: ±2mm
• Material: Alumina Ceramic
• Transport Package: Individual Package
• Specification: Max. up to 140mm× 190mm
• Trademark: JingHui
• Origin: China
• HS Code: 8547100000

Product Description

0.38mm 0.5mm 0.635mm 1mm Aluminum Nitride Rectangular AlN Ceramic Substrate

Product Introduction

Aluminum nitride (AlN) is an advanced ceramic material for high power hybrid semiconductor packaging where high thermal conductivity is required. AlN ceramic substrates have a thermal conductivity of more than 170W/m·K.

Molding Technique of the Aluminum Nitride Ceramic Substrate

Although dry pressing and tape casting are suitable for producing high-performance aluminum nitride ceramic substrates, they are high in cost and low in production efficiency, and cannot meet the increasing demand for aluminum nitride ceramic substrates in the electronics industry. 

In order to solve this problem, in recent years, many manufacturers have adopted tape casting technique to produce aluminum nitride ceramic substrates. Tape casting has also become the main molding technique for aluminum nitride ceramic substrates used in the electronics industry.

Manufacturing Capacity

The aluminum nitride ceramic substrate has high hardness and high brittleness, making it difficult to process. Most of the aluminum nitride ceramic substrates are rectangular, square or round in shapes. Our rectangular shapes for as-fired aluminum nitride ceramic substrates are available up to 140mm×190mm.

Below is the standard dimensions of our bare AlN substrates.
 

AlN Ceramic Substrate
Thickness (mm)	Maximum Size (mm)			Shape			Molding Technique
	As-fired	Lapped	Polished	Rectangular	Square	Round
0.1-0.2		50.8	50.8		√	√	Tape Casting
≥0.2		114.3	114.3		√	√	Tape Casting
0.38	140×190	140×190	120	√	√		Tape Casting
0.5	140×190	140×190	120	√	√		Tape Casting
0.635	140×190	200	200	√	√	√	Tape Casting
1	140×190	300	200	√	√	√	Tape Casting
1.5		300	200		√	√	Tape Casting
2		300	200		√	√	Tape Casting
2.5		300			√	√	Tape Casting
3		300			√	√	Tape Casting
…		450			√	√	Isostatic Pressing
10		450			√	√	Isostatic Pressing
Other special thicknesses within the thickness range of 0.1-3.0mm can be achieved by lapping.

Product Parameters

For material properties, please refer to the table below.

AlN Ceramic Substrate
Item	Unit	Value
Mechanical Properties
Color	/	Gray
Density	g/cm³	≥3.33
Flexural Strength	MPa	≥380
Water Absorption	%	0
Camber	Length‰	≤3‰
Thermal Properties
Max. Service Temperature (Non-loading)	ºC	>1000
CTE (Coefficient of Thermal Expansion)	20-800ºC, 1×10^-6/ºC	4-6
Thermal Conductivity	20ºC, W/m·K	170-230
Electrical Properties
Dielectric Constant	1MHz	8-10
Volume Resistivity	20ºC, Ω·cm	≥10^13
Dielectric Strength	KV/mm	≥17

Applications

FAQ

Q1: What is the Maximum Service Temperature of the Aluminum Nitride Ceramic Substrates?
Aluminum nitride ceramic substrates can withstand high temperature over 1000 ºC.

Q2: Do the Bare Ceramic Substrates Meet the Requirements for Metallized Ceramic Circuit Boards?
Yes. Metallized ceramic substrates, also known as metallized ceramic circuit boards, include bare ceramic substrates and metal circuit layers. Bare ceramic substrates are widely used in integrated circuit packaging, LED lighting, heat dissipation substrates and other fields in the electronic industry due to their advantages of thinness, high temperature resistance, high electrical insulation performance, low dielectric loss, and good chemical stability.

Q3: What is the Maximum Thermal Conductivity of Your Bare Aluminum Nitride Substrates?
The thermal conductivity of aluminum nitride substrates is generally 170W/m·K or higher. The maximum value can reach 230W/m·K, which is 8 times that of alumina. It has broad development prospects in the fields like high-power electronic semiconductor modules, electronic heaters and semiconductor power hybrid circuits.

Q4: Can We Get Free Samples?
Samples of standard sizes are free, and we only charge for shipping. If customization is required, we only collect sample fee for MOQ.

Q5: How Long is the Production Lead Time?
If the product is in stock, we will ship it within 1-2 days. The standard lead time for other orders is 4-6 weeks.

If your question is not listed here, please contact us for more information.