Insulating 99.6% Al2O3 Alumina Ceramic Thin Plate

• Customization: Available
• Application: Electronic Devices, Lighting, Power Supply, Semiconductors, Blank Ceramic Circuit Board
• Material: Ceramic
• Model NO.: JJBP-0111-0004
• Thermal Rating: 1200 < Refractoriness < 1400
• Color: White, Ivory, Pink, Black
• Forming Method: Tape Casting
• Features: High Mechanical Strength, Small Dielectric Loss
• Density: Over 3.95g/cm3
• Standard Thickness: 0.1-0.635mm Available
• Thickness Tolerance: ±0.03/0.05mm (Depending on Thickness)
• Length and Width Tolerance: ±2mm
• Customized Service: OEM, ODM, Prototyping, Trial Order Supported
• Type: Insulation Sheet
• Chemistry: Inorganic Insulation
• Classification: Inorganic Insulation Material
• Transport Package: Individual Package
• Specification: Max. up to 120mm x 120mm
• Trademark: JingHui
• Origin: China
• HS Code: 8547100000

Product Description

Electrical 99.6% Al2O3 Alumina Ceramic Thin Plate
 

The Prime Characteristics

 

1.  High Wear & Chemical Resistance

2. Heat Resistant

3. High Mechanical Strength

4. Small Dielectric Loss

5. Low Coefficient of Thermal Expansion (CTE)

6. High Light Reflection

7. 0% Water Absorption

 

Product Description

Introduction of Alumina Ceramic Substrates

The ceramic substrate material is widely used in electronic packaging substrate for its advantages such as high strength, good insulation, good thermal conductivity and heat resistance, small thermal expansion coefficient (CTE) and good chemical stability.

Alumina ceramics are in a dominant position in the fields of microelectronics, power electronics, hybrid microelectronics, and power modules due to their superior comprehensive performance, and are widely used.
 

99.6% Alumina Ceramic Substrate
Item	Unit		99.6% Al2O3
Mechanical Properties
Color	/	/	Ivory
Density	Drainage Method	g/cm^3	≥3.95
Light Reflectivity	400nm/1mm	%	83
Flexural Strength	Three Point Bending	MPa	>500
Fracture Toughness	Indentation Method	MPa·m^1/2	3.0
Vickers Hardness	Load 4.9N	GPa	16
Young's Modulus	Stretching Method	GPa	300
Water Absorption		%	0
Camber	/	Length‰	≤3‰
Thermal Properties
Max. Service Temperature (Non-loading)	/	ºC	1400
CTE (Coefficient of Thermal Expansion)	20-800ºC	1×10^-6/ºC	7.9
Thermal Conductivity	25ºC	W/m·K	>29
Thermal Shock Resistance	800ºC	≥10 Times	No Crack
Specific Heat	25ºC	J/kg·k	780
Electrical Properties
Dielectric Constant	25ºC, 1MHz	/	9.8
Dielectric Loss Angle	25ºC, 1MHz	×10^-4	≤2
Volume Resistivity	25ºC	Ω·cm	≥10^14
Dielectric Strength	DC	KV/mm	≥15

 

 

Manufacturing Capacity

1. Product Specification

Products of various specifications can be produced. The table below shows our standard thicknesses and sizes.

99.6% Alumina 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
0.25		114.3	114.3		√		Tape Casting
0.38	120	114.3	114.3		√		Tape Casting
0.5	120	114.3	114.3		√		Tape Casting
0.635	120	114.3	114.3		√		Tape Casting
Other special thicknesses within the thickness range of 0.1-0.635mm can be achieved by lapping.

2. Product Tolerances
 

99.6% Alumina Ceramic Substrate
Item	Substrate Thickness (mm)	Standard Tolerance (mm)	Best Tolerance (mm)	Laser Cutting Tolerance (mm)
Length and Width Tolerance	/	±2		±0.15
Thickness Tolerance	T<0.3	±0.03	±0.01
	0.30-1.0	±0.05	±0.01
	T>1.0	±10%	±0.01

3. Surface Roughness
 

99.6% Alumina Ceramic Substrate
Surface Roughness (μm)
As Fired	Lapped	Polished
Ra 0.05-0.15	Ra 0.1-0.5	Ra ≤0.05

4. Laser Processing

(1) Hole Size
 

99.6% Alumina Ceramic Substrate
Hole Diameter (mm)	Standard Tolerance (mm)
φ≤0.5	0.08
φ>0.5	0.2

(2) Laser Scribing

99.6% Alumina Ceramic Substrate
Substrate Thickness (mm)	the Percentage of Laser Scribe Line Depth to Thickness (%)
0.2-0.3	40%±5%
0.3<T≤0.5	50%±3%
0.5<T≤1.0	43%±3%
1.2	55%±3%
1.5	55%±3%
2.0	55%+10%
The scribing spot can be in different sizes. Generally there are small spot 0.03-0.04mm (Substrate Thickness≤0.5mm ) and large spot 0.08-0.1mm (Substrate Thickness>0.5mm), and the accuracy is ±0.01mm.

 

 

Typical Applications

 

 

Why choose us?

Specializing in the production of bare ceramic substrates, Jinghui Industry Ltd. has 10+ years of R&D experience. Our products have high cost performance and will definitely satisfy you.