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96 Alumina (Al₂O₃) Substrates

Innovacera’s 96 Alumina (Al₂O₃) Substrates combine high density, superior thermal conductivity, and excellent dielectric strength, making them an ideal choice for electronic and energy applications. With outstanding resistance to high temperature, acid, and alkali corrosion, these substrates ensure stable performance even in demanding environments. Their precision machining and customizable sizes provide reliable solutions for thick and thin film resistors, low-power LEDs, and energy storage systems.

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Technical Strength

(1) Independent formula system

(2) Various molding processes ( casting, dry pressing, isostatic pressing and other ceramic molding technologies )

(3) Precision machining of dimensions

(4) Customized services

Powder Materials Advantages

Independent and controllable materials with stable quality
Low impurity content and high powder purity
Batch production of powders, more stable
Performance parameters can be customized

Features

High thermal shock resistance
Low warpage
High temperature resistance, good acid and alkali corrosion resistance
Excellent processing performance

Application

Thick film and thin film chip resistors
Low power LED
Gaskets for energy storage, charging piles, etc.

96 Alumina Material Properties Table

Project		Test conditions	Unit	Al 2 O 3
Project		Test conditions	Unit	A1296	A1296A	A2296	A996
Material		-	-	96%	96%	96%	100%
Appearance		-	-	White dense	White dense	White dense	White dense
Surface Roughness		Ra	μm	0.2-0.6	0.2-0.6	0.2-0.6	0.2-0.6
Density		-	g/cm 3	≥3.70	≥3.60	≥3.75	≥3.8
Physical properties	Bending strength	3 -point bending resistance	MPa	≥380	≥350	≥400	≥450
	Vickers hardness	Load 4.9	GPa	≥14	≥13	≥14	≥14
	Water absorption	-	%	0			0
Thermal performance	Thermal conductivity	25℃	W/(m·K)	≥22	≥19	≥24	≥27
	Linear thermal expansion coefficient	25℃-500℃	x10 -6 /℃	6.6~7.5			6.6~7.5
	Thermal shock resistance	800℃	time	≥10			≥10
	Specific heat	-	J/ ( kg·K )	880			780
Electrical properties	Dielectric constant	1MHz/25℃	-	9~10			9~10
	Dielectric loss	1MHz/25℃	x10 -4	≤3			≤0.5
	Volume resistivity	25℃	Ω·cm	> 10 14			> 10 14
	Breakdown voltage	-	kV/mm	> 12			> 15
Light performance	Reflectivity	Reflectivity meter	-	> 92%	> 95%	> 88%	> 90%
Light performance	Whiteness	Whiteness meter	-	> 88	> 86	> 88	-

Standard size:

Size(mm) Thickness(mm)	0.38	0.5	0.6	0.635	0.65	0.75	1.0	1.2	1.5	2.0
84*84	√	√	√	√	√	√	√	√	√	√
109*109	√	√	√	√	√	√	√	√	√	√
120*120	√	√	√	√	√	√	√	√	√	√
127*127	√	√	√	√	√	√	√	√	√	√
132*142		√	√	√	√	√	√	√	√	√
136*151		√	√	√	√	√	√	√	√	√
137*157		√	√	√	√	√	√	√	√	√
138*190		√	√	√	√	√	√	√	√	√
130*200		√	√	√	√	√	√	√	√	√

Declaration: This is an original article of INNOVACERA®. Please indicate the source link when reprinting: https://www.innovacera.com/product/96-alumina-al2o3-substrates

Frequently Asked Questions

Why Are 96% Alumina Substrates Ideal for Film Resistors? How Do Low Warpage and High Purity Prevent Cracking?

Thin and thick film chip resistors require extremely flat substrate surfaces with minimal camber to prevent screen-printing distortion and micro-cracking during laser trimming. INNOVACERA’s 96% alumina substrates offer surface roughness Ra 0.2–0.6 µm, minimal warpage, and bending strength >= 380 MPa. Combined with high thermal conductivity (up to 27 W/m·K) and volume resistivity >10^14 Ω·cm, they deliver stable resistance tracking and rapid heat dissipation in high-density circuit assemblies.

Need Specific Wafer Thicknesses for LEDs and Charging Piles? Where Can You Buy 96 Alumina Substrate Sheets?

You can buy standard tape-cast 96% alumina substrate sheets directly from INNOVACERA in standard plate sizes from 84×84 mm up to 130×200 mm, with thicknesses ranging from 0.38 mm to 2.0 mm. We also provide precision laser scribing, dicing, and custom hole drilling to match your automated lines for low-power LED packaging, battery energy storage insulation, and EV charging station gaskets.