Electronic Al2O3 Ceramic Alumina PCB Substrate

• Application: Aerospace, Electronics, Medical, Refractory, Industrial Ceramic
• Material Composition: Alumina, Al2O3
• Speciality: High Insulation
• Type: Ceramic Plates
• Dielectric Loss: 0.0003
• Shape: Plate
• Model NO.: DBC Ceramic Substrate
• Max Use Temperature: 300°c
• Thermal Conductivity: 170
• Processing Service: Moulding, Active Metal Bonding
• Density: 3.3-3.7
• Transport Package: vacuum & Carton Packaging
• Specification: customized
• Trademark: INNOVACERA
• Origin: Fujian, China
• Production Capacity: 100000 Piece/Pieces Per Month

Product Description

Aluminum Oxide (Al2O3) or Alumina 96% is the most widely used ceramic material for ceramic printed circuit boards and submounts. This is because alumina PCBs have good material properties, including good thermal conductivity, low CTE (coefficient of thermal expansion), dielectric strength, strong resistance to chemical hazards, and hermeticity. These favorable properties are in combination with a relatively low cost and more easy handling which explains the wide usage. Furthermore, UV transparency, as well as the bright white color, can also be a benefit in applications where a high reflection rate of visible light is needed without discoloration issues (yellowing) Applications include, for example, cooling and heating modules, LED boards, sensor modules, antennas, and high-frequency devices.

Alumina Ceramics Properties
	Unit	95%	99%
Density	g/cm3	3.6	3.8
Water absorption	%	<0.4	<0.2
Firing temperature	°C	1600	1800
Hardness	HRA	70	80
Coefficientoflinearexpansion	*10-6/°C	5.5	5.3
Dielectric constant		9	10.5
Volume resistivity	Ω·cm	-	1013
Breakdownvoltage	KV/mm	14	15
Breaking strength	Mpa	250	300

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