Bare Aluminum Oxide Substrate PCB 96% Alumina Ceramic Circuit Board

• Type: Ceramic Substrate
• Dielectric: Al2O3
• Material: 96% Alumina Ceramic
• Application: Blank Ceramic Circuit Board
• Base Material: Aluminum Oxide
• Forming Method: Tape Casting
• Model NO.: JJBP-0111-0003
• Features: High Mechanical Strength, Small Dielectric Loss
• Optional Color: White, Ivory, Pink, Black
• Density: Over 3.70g/cm3
• Standard Thickness: 0.1-2.0mm Available
• Thickness Tolerance: ±0.03/0.05mm (Depending on Thickness)
• Length and Width Tolerance: ±2mm
• Transport Package: Individual Package
• Specification: Max. up to 500mm x 500mm
• Trademark: JingHui
• Origin: China
• HS Code: 8547100000

Product Description

Bare Aluminum Oxide Substrate PCB 96% Alumina Ceramic Circuit Board

Product Introduction

1. 96% Alumina (Al2O3) is one of the most popular ceramic substrate materials because of its excellent heat resistance, high mechanical strength, abrasion resistance, and small dielectric loss. The surface of the alumina ceramic substrate is quite smooth and has a low porosity.

2. 96% Alumina substrates are suitable for thick film applications like hybrid PCB and component substrates or it can be used in direct plated copper sputtering.

3. Thanks to its adequate thermal conductivity, it can also be used as a heat spreader at the back of a PCB. It is also suitable for usage in high power and high-frequency applications because of dielectric properties.
 

Product Parameters
 

Alumina Ceramic Substrate
Item	Unit		96% Al2O3
Mechanical Properties
Color	/	/	White
Density	Drainage Method	g/cm^3	≥3.70
Light Reflectivity	400nm/1mm	%	94
Flexural Strength	Three Point Bending	MPa	>350
Fracture Toughness	Indentation Method	MPa·m^1/2	3.0
Vickers Hardness	Load 4.9N	GPa	14
Young's Modulus	Stretching Method	GPa	340
Water Absorption		%	0
Camber	/	Length‰	T≤0.3: ≤5‰, Others: ≤3‰
Thermal Properties
Max. Service Temperature (Non-loading)	/	ºC	1200
CTE (Coefficient of Thermal Expansion)	20-800ºC	1×10^-6/ºC	7.8
Thermal Conductivity	25ºC	W/m·K	>24
Thermal Shock Resistance	800ºC	≥10 Times	No Crack
Specific Heat	25ºC	J/kg·k	750
Electrical Properties
Dielectric Constant	25ºC, 1MHz	/	9.4
Dielectric Loss Angle	25ºC, 1MHz	×10^-4	≤3
Volume Resistivity	25ºC	Ω·cm	≥10^14
Dielectric Strength	DC	KV/mm	≥15

Manufacturing Capacity

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

Alumina Ceramic Substrate
96% Al2O3
Thickness (mm)	Maximum Size (mm)			Shape			Molding Technique
	As Fired	Lapped	Polished	Rectangular	Square	Round
0.25	120	114.3	114.3		√		Tape Casting
0.3	120	114.3	114.3		√		Tape Casting
0.38	140×190			√			Tape Casting
0.5	140×190			√			Tape Casting
0.635	140×190			√			Tape Casting
0.76	130×140			√			Tape Casting
0.8	130×140			√			Tape Casting
0.89	130×140			√			Tape Casting
1	280×240			√			Tape Casting
1.5	165×210			√			Tape Casting
2	500×500			√			Tape Casting
Other special thicknesses within the thickness range of 0.1-2.0mm can be achieved by lapping.

Product Recommendations

Beside bare ceramic substrates, we also manufacture metallized ceramic PCBs. Metallized ceramics is one of our advantageous products.