Laser-cut Aluminum Nitride (AlN) substrates

At CERcuits, we provide laser-cut Aluminum Nitride (AlN) substrates with a high precision made to your design. Simply complete the form above and click ‘calculate’ to get a quote right away. If you like the price you are getting, you can order immediately or adjust some parameters. Production can take up to 15 working days for difficult & complex designs but we ship most orders within 5 working days!

Aluminum Nitride or AlN, is the best thermally conductive material available that is also a strong electric isolator and therefore the material of choice for sub-mounts, PCBs & packages for high power – high-reliability components, heat spreaders, and electronic circuits. Whether you need to heat up or cool down materials fast using a low expansion, durable, hermetic, non-outgassing material, Aluminum Nitride (AlN) is the best option available. Because of its hardness and thermal conductivity, after firing, flat substrates can only be precisely machined using high power laser or diamond methods in a controlled non-oxide environment. AlN Is used in high power LEDs, IC, IGBTs, battery applications, piezoelectric applications, high power motors, quantum computing, … More information about the material and its properties can be found in the material table below.

At CERcuits, we can do the following processes:

• Cutting
• Drilling
• Milling
• Laser scribing (click for more info)
• Laser Marking

Dimensions & thicknesses of our laser-cut aluminum nitride substrates :

Available thicknesses	Max dimensions
0.25mm / 0.010"	Standard: 100 mm x 100 mm / 3.9 in x 3.9 in
0.38mm / 0.015"	Standard: 110 mm x 110 mm / 4.3 in x 4.3 in Special: 114 mm x 114 mm / 4.5 in x 4.5 in
0.50mm / 0.020"	Standard: 110 mm x 110 mm / 4.3 in x 4.3 in Special: 114 mm x 114 mm / 4.5 in x 4.5 in
0.63mm / 0.025"	Standard: 110 mm x 110 mm / 4.3 in x 4.3 in Special: 150 mm x 140 mm / 5.9 in x 5.5 in
1.00mm / 0.040"	Standard: 110 mm x 110 mm / 4.3 in x 4.3 in Special: 178 mm x 127 mm / 7.0 in x 5.0 in
1.5mm / 0.060" (available on request)	Special: 114 mm x 114 mm / 6.4 in x 4.5 in
2.0mm / 0.080"	Standard: 110 mm x 110 mm / 4.3 in x 4.3 in Special: 113.5 mm x 113.5 mm / 4.4 in x 4.4 in

Thickness tolerances:

• 0.38mm: +/-0.05 or 0.015″ +/-0.002
• 0.5mm: +/-0.05 or 0.020″ +/-0.002
• 0.63mm +/-0.06 or 0.025″ +/-0.002
• 1mm +/-0.10 or 0.040″ +/-0.004
• 1.5mm: +/- 0.10 or 0.060″ +/-0.004
• 2mm: +/- 0.10 or 0.080″ +/-0.004

Machining tolerances

Item	Thickness	Standard tolerance
Dimensional L X W	≤0.635mm	+0.15mm / -0.05mm
	>0.635 & ≤ 1mm	+0.20mm / -0.05mm
	> 1mm	+0.35mm / -0.05mm
Holes & Lines	≤0.635mm	+0.15mm / -0.05mm
	>0.635 & ≤ 1mm	+0.20mm / -0.05mm
	> 1mm	+0.35mm / -0.05mm
Hole Diameter	≤5mm	+/- 0.05mm
	>5mm	+/-0.1mm

Contact us for more stringent requirements

We can accept the following file types for your drawings

• DXF, DWG
• Step
• PDF
• Gerber

Aluminim Nitride (AlN) material properties:

Property	Items	Unit	AlN
Physical	Color	-	Grey
	Water absorption	%	0
	Reflectivity	%	30*
Electrical	Dielectric Constant (1MHz)	-	8～10
	Dielectric Loss	*10^-4	3
	Dielectric strength	MV/m or KV/mm	>17
	Insulation/Volume resistance	Ω·cm	>10^14
Mechanical	Density after sintering (Bulk density)	g/cm3	3.26
	Flexural Strength (3 point)	Mpa	～380
	Hardness		9.3
	Elasticity (Young's Modulus)	GPa	302
	Surface Roughness	μm	0.3～0.6
	Camber	Lenght%	≦2
Thermal	Coefficient of Thermal Expansion (CTE)	ppm/°C	2～3
	Coefficient of Thermal Expansion (CTE) RT~500 °C	ppm/°C	2.5～3.5
	Thermal Conductivity (25°C)	W/m‧K	170
* Reflectivity test reference thickness of 0.5mm

The data shown is typical of commercially available material and is only offered for comparative purposes. The information shall not be interpreted as absolute material properties nor does it constitute a representation or warranty for which we assume legal liability. User shall determine the suitability of the material for the intended use and assumes all risk and liability whatsoever in connection therewith.

 

Frequently asked questions about our laser machined aluminum nitride services:

Full FAQ here

Lead time: we ship in 15-20 working days. For faster lead times, please contact us.