Alumina Ceramic Substrate - Oxides - Advanced Ceramic

Product

Alumina Ceramic Substrate

characteristic

◆ Good thermal conductivity

◆ Good thermal shock resistance

◆ Excellent surface characteristics and flatness

◆ High insulation performance, low dielectric constant and dielectric loss

◆ Excellent mechanical strength

◆ Stable physical and chemical properties and corrosion resistance

◆ Good stability, good breaking performance and high dimensional accuracy

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product details

Product Parameter

Characteristic		Test Condition	Unit	Qualified		Fine
Color				White dense		White dense
Size (mm)		can be customized (max :100*290）
Length Tolerances				±0.7% （Min：0.13mm）		±0.5% （Min：0.1mm）
Thickness (mm)		0.38/0.5/0.635/0.8/1.0 (any thickness between 0.38 and 1.2)
Thickness Tolerances				±7% （Min：0.05mm）	±5% （Min：0.05mm）
Camber				≤0.5%	≤0.3%
Grain Size			μm	3~5	3~5
Surface Roughness		Ra	μm	0.2~0.5	0.2~0.4
Density			g/cm3	≥3.70	≥3.72
Physical Properties	Flexural Strength		MPa	≥380	≥400
	Hardness	Loaded 4.9	GPa	≥14	≥15
	Water Absorption		%	0	0
Thermal Properties	Thermal Conductivity	25℃	W(m*k)	≥22	≥24
	Thermal Expansion	25-500℃	10^-6mm/℃	6.6~7.5	6.6~7.5
		25-800℃		6.6~7.9	6.6~7.9
	Thermal Shock Resistance	850℃	time	≥6
	Specific Heat		J/(kg*K)	880
Electrical Property	Dielectric Constant	1MHz/25℃		9.4±0.3
	Dielectric Loss	1MHz/25℃	×10^-⁴	≤3
	Volume Resistivity	25℃	Ω*cm	＞10¹⁴
		500℃		＞10¹⁰
		700℃		＞10⁹
	Breakdown Voltage		KV/mm	＞12	＞12

Application

We adopts international leading technology to produce high-performance alumina ceramic substrate products. It is widely applied in high-power circuit substrates and heat dissipation substrates of electronic components for copper clad laminates, printers, LED lighting and communication, automobile and other industries. The company can customize products of various specifications, sizes and shapes required by customer.

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