Precisely Produced Aluminum Nitride Substrates by PCBTok
The Aluminum Nitride Substrates have a standard color of grey or white ceramic material with a 3.26 g/cm3 density. Also, it has excellent insulating properties.
Since all of our boards have gone through 100% E-Test and AOI, PCBTok is more than capable of delivering you a spectacular Aluminum Nitride Substrate PCB.
Additionally, we provide 24-hour quick turnaround, sample pieces before mass production, and IPC Class 2 or 3 compliance for all our boards.
Order your Aluminum Nitride Substrates today and take advantage of our fantastic offers!
Supplying Best Quality of Aluminum Nitride Substrates
PCBTok has been in the PCB construction industry for over twelve years; we fully understand any of your circuit board design specifications.
We can produce customized Aluminum Nitride Substrates to your liking, starting from the initial concept of it until the shipment of your orders.
However, no need to worry if you already have a Gerber file; we can still work it out and run through additional inspections to ensure your designs are flawless.
All of our expert personnel are available 24/7 to address all of your PCB concerns.
If you’re seeking a company that will value your principles and PCB requirements, then look no further since PCBTok can provide that for you. Inquire now!
Aluminum Nitride Substrates By Feature
The DPC Ceramic Plate that we integrate this particular substrate into has a proven exceptional solution for electrical insulation and thermal control for semiconductor modules. However, it has reduced thermal conductivity.
The DPC Ceramic Plate into which we incorporate this particular substrate has superior CTE value and excellent thermal conductivity. Moreover, they are highly suitable for high-power applications due to their superb copper conductors.
The Customized Plate that we integrate this particular board into can be ideal for applications that require individual personalization. In addition, if planning to deploy additional components than usual, this is an excellent alternative for it.
The Thin Film Plate into which we incorporate this particular board can be a suitable option if seeking exceptional usability. Moreover, it has a compact design and size; however, it can be relatively expensive compared with the thick film plate.
The Ceramic Plate into which we integrate this particular substrate has an excellent thermal conductivity value of 150 up to 180 W/mK. In addition, they possess good chemical stability; thus, they are used in high-frequency power supplies.
What is Aluminum Nitride Substrates in PCB?
In essence, the Aluminum Nitride Substrates possess high thermal conductivity with a strong dielectric and low expansion value. Thus, making it the finest ceramic substrate material in the market that is highly accessible.
Due to the capability of this substrate in PCBs, they are commonly chosen as the best option for High Power LEDs, Sensors, ICs, and others.
Since there are possibilities of experiencing surface oxidation due to air, this particular substrate has an Aluminum Oxide Layer that can protect it from up to 137°C.
In addition, this substrate is capable of metallization methods similar to alumina and beryllium oxide. Hence, they are ideal for high wear resistance operation.
Grab our newly improved quality of Aluminum Nitride Substrates today!

Characteristics of Aluminum Nitride Substrates in PCB
As mentioned previously, Aluminum Nitride Substrates have been widely used in various industries; hence, we’ll give you an insight into its primary characteristics.
- It has a notable thermal conductivity of 170 W/mK up to 230 W/mK
- It has a Low Coefficient of Thermal Expansion with a value of 3 to 4 ppm/C.
- In terms of its operating temperature, it can be very low or high.
- As for its dielectric loss, it has been categorized as a small low.
- It is highly resistant to wear, heat, and chemical.
- It has high mechanical strength that has a value of 450 MPa.
- As for water absorption, it has a rate of 0%.
Material Properties of Aluminum Nitride Substrates
In terms of the Aluminum Nitride Substrates’ material properties it has been divided into four (4) categories; we have, physical, electrical, mechanical, and thermal.
- Physical – It has a grey or white color, 0% water absorption, and 30% reflectivity.
- Electrical – It has a dielectric loss value of 3×10-4, a dielectric constant of 8 up to 10, a dielectric strength of > 17 kV/mm, and >1014 Ω·cm for volume resistance.
- Mechanical – It has a hardness value of 9.3, an elasticity value of 302 GPa, a flexural strength of up to 380 MPa, and 0.3 to 0.6 µm of surface roughness.
- Thermal – It has a coefficient of thermal expansion at RT 500°C with a value of 2.5 to 3.5 ppm/°C and thermal conductivity at 25°C with a value of 170 W/mK.

Choose PCBTok's Premium Grade Aluminum Nitride Substrates


In choosing the right manufacturer for your Aluminum Nitride Substrates, it is crucial that the company has an extensive experience in the field – that PCBTok possess.
Moreover, we have set a high standard in producing your circuit boards; hence, we conduct meticulous quality control to ensure that they’ll operate flawlessly.
We will not deliver a product that hasn’t met nor exceeded our set standards; we are performing this to guarantee you a worthy output. In terms of PCB Design, we offer a versatile service and can provide you with authentic and up-to-date software.
All of our products have undergone a thorough Flying Probe Test, In-Circuit Test, and all of the necessary inspections required by the international guidelines.
Inquire today! We’ll be delighted to guide you throughout the purchasing process!
Aluminum Nitride Substrates Fabrication
Aluminum Nitride Substrates can offer a wide array of advantages in your applications, some of which are already mentioned in previous article sections.
Firstly, it has exceptional insulation capacity (>1.1012 Ωcm). Secondly, it has outstanding metallization capability. Third, it has very low adherence.
Fourth, it can be an excellent alternative to Beryllium Oxide since it is non-toxic to the environment. Fifth, it has remarkable surface flatness.
Sixth, it has excellent dimensional stability even when exposed to extreme temperature conditions. Finally, it has excellent tolerance to wear and corrosion.
If you have any questions about this substrate, kindly contact us directly.
One of the considerations to take in purchasing a product is its cost; hence, we’d like to give you an insight into the rate of the Aluminum Nitride Substrates.
Generally, the answer to this question can be either yes or no. Since if they are compared to standard PCBs, they can be costly due to their materials.
In comparison to Rogers and Metal Core PCBs, this substrate has a higher processing cost per piece. Also, its lower panel size contributes to its price.
However, since this substrate has exceptional thermal properties, it led to the complete module being simplified. Therefore, it has reduced its overall price.
Kindly message us your specifications; we’ll try to give you the best deals!
OEM & ODM Aluminum Nitride Substrates Applications
Since this substrate has high resistance to chemical and heat, they are commonly utilized in medical technologies wherein it is prone.
Due to the substrate’s capability to withstand extreme temperature conditions, they are widely preferred in military device applications.
Every electronic sensor might require exceptional tolerance to wear and corrosion; thus, they frequently utilize this particular substrate in their PCBs.
One of the features of this particular substrate is its non-toxic ability; hence, they are commonly deployed in LED lighting wherein it is beneficial.
Since this substrate can operate even when subjected to high temperatures while maintaining its dimensional stability, they are used in the aerospace industry.
Aluminum Nitride Substrates Production Details As Following Up
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NO | Item | Technical Specification | ||||||
Standard | Advanced | |||||||
1 | Layer Count | 1-20 layers | 22-40 layer | |||||
2 | Base Material | KB、Shengyi、ShengyiSF305、FR408、FR408HR、IS410、FR406、GETEK、370HR、IT180A、Rogers4350、Rogers400、PTFE Laminates(Rogers series、Taconic series、Arlon series、Nelco series)、Rogers/Taconic/Arlon/Nelco laminate with FR-4 material(including partial Ro4350B hybrid laminating with FR-4) | ||||||
3 | PCB Type | Rigid PCB/FPC/Flex-Rigid | Backplane、HDI、High multi-layer blind&buried PCB、Embedded Capacitance、Embedded resistance board 、Heavy copper power PCB、Backdrill. | |||||
4 | Lamination type | Blind&buried via type | Mechanical blind&burried vias with less than 3 times laminating | Mechanical blind&burried vias with less than 2 times laminating | ||||
HDI PCB | 1+n+1,1+1+n+1+1,2+n+2,3+n+3(n buried vias≤0.3mm),Laser blind via can be filling plating | 1+n+1,1+1+n+1+1,2+n+2,3+n+3(n buried vias≤0.3mm),Laser blind via can be filling plating | ||||||
5 | Finished Board Thickness | 0.2-3.2mm | 3.4-7mm | |||||
6 | Minimum Core Thickness | 0.15mm(6mil) | 0.1mm(4mil) | |||||
7 | Copper Thickness | Min. 1/2 OZ, Max. 4 OZ | Min. 1/3 OZ, Max. 10 OZ | |||||
8 | PTH Wall | 20um(0.8mil) | 25um(1mil) | |||||
9 | Maximum Board Size | 500*600mm(19”*23”) | 1100*500mm(43”*19”) | |||||
10 | Hole | Min laser drilling size | 4mil | 4mil | ||||
Max laser drilling size | 6mil | 6mil | ||||||
Max aspect ratio for Hole plate | 10:1(hole diameter>8mil) | 20:1 | ||||||
Max aspect ratio for laser via filling plating | 0.9:1(Depth included copper thickness) | 1:1(Depth included copper thickness) | ||||||
Max aspect ratio for mechanical depth- control drilling board(Blind hole drilling depth/blind hole size) |
0.8:1(drilling tool size≥10mil) | 1.3:1(drilling tool size≤8mil),1.15:1(drilling tool size≥10mil) | ||||||
Min. depth of Mechanical depth-control(back drill) | 8mil | 8mil | ||||||
Min gap between hole wall and conductor (None blind and buried via PCB) |
7mil(≤8L),9mil(10-14L),10mil(>14L) | 5.5mil(≤8L),6.5mil(10-14L),7mil(>14L) | ||||||
Min gap between hole wall conductor (Blind and buried via PCB) | 8mil(1 times laminating),10mil(2 times laminating), 12mil(3 times laminating) | 7mil(1 time laminating), 8mil(2 times laminating), 9mil(3 times laminating) | ||||||
Min gab between hole wall conductor(Laser blind hole buried via PCB) | 7mil(1+N+1);8mil(1+1+N+1+1 or 2+N+2) | 7mil(1+N+1);8mil(1+1+N+1+1 or 2+N+2) | ||||||
Min space between laser holes and conductor | 6mil | 5mil | ||||||
Min space between hole walls in different net | 10mil | 10mil | ||||||
Min space between hole walls in the same net | 6mil(thru-hole& laser hole PCB),10mil(Mechanical blind&buried PCB) | 6mil(thru-hole& laser hole PCB),10mil(Mechanical blind&buried PCB) | ||||||
Min space bwteen NPTH hole walls | 8mil | 8mil | ||||||
Hole location tolerance | ±2mil | ±2mil | ||||||
NPTH tolerance | ±2mil | ±2mil | ||||||
Pressfit holes tolerance | ±2mil | ±2mil | ||||||
Countersink depth tolerance | ±6mil | ±6mil | ||||||
Countersink hole size tolerance | ±6mil | ±6mil | ||||||
11 | Pad(ring) | Min Pad size for laser drillings | 10mil(for 4mil laser via),11mil(for 5mil laser via) | 10mil(for 4mil laser via),11mil(for 5mil laser via) | ||||
Min Pad size for mechanical drillings | 16mil(8mil drillings) | 16mil(8mil drillings) | ||||||
Min BGA pad size | HASL:10mil, LF HASL:12mil, other surface technics are 10mil(7mil is ok for flash gold) | HASL:10mil, LF HASL:12mil, other surface technics are 7mi | ||||||
Pad size tolerance(BGA) | ±1.5mil(pad size≤10mil);±15%(pad size>10mil) | ±1.2mil(pad size≤12mil);±10%(pad size≥12mil) | ||||||
12 | Width/Space | Internal Layer | 1/2OZ:3/3mil | 1/2OZ:3/3mil | ||||
1OZ: 3/4mil | 1OZ: 3/4mil | |||||||
2OZ: 4/5.5mil | 2OZ: 4/5mil | |||||||
3OZ: 5/8mil | 3OZ: 5/8mil | |||||||
4OZ: 6/11mil | 4OZ: 6/11mil | |||||||
5OZ: 7/14mil | 5OZ: 7/13.5mil | |||||||
6OZ: 8/16mil | 6OZ: 8/15mil | |||||||
7OZ: 9/19mil | 7OZ: 9/18mil | |||||||
8OZ: 10/22mil | 8OZ: 10/21mil | |||||||
9OZ: 11/25mil | 9OZ: 11/24mil | |||||||
10OZ: 12/28mil | 10OZ: 12/27mil | |||||||
External Layer | 1/3OZ:3.5/4mil | 1/3OZ:3/3mil | ||||||
1/2OZ:3.9/4.5mil | 1/2OZ:3.5/3.5mil | |||||||
1OZ: 4.8/5mil | 1OZ: 4.5/5mil | |||||||
1.43OZ(positive):4.5/7 | 1.43OZ(positive):4.5/6 | |||||||
1.43OZ(negative ):5/8 | 1.43OZ(negative ):5/7 | |||||||
2OZ: 6/8mil | 2OZ: 6/7mil | |||||||
3OZ: 6/12mil | 3OZ: 6/10mil | |||||||
4OZ: 7.5/15mil | 4OZ: 7.5/13mil | |||||||
5OZ: 9/18mil | 5OZ: 9/16mil | |||||||
6OZ: 10/21mil | 6OZ: 10/19mil | |||||||
7OZ: 11/25mil | 7OZ: 11/22mil | |||||||
8OZ: 12/29mil | 8OZ: 12/26mil | |||||||
9OZ: 13/33mil | 9OZ: 13/30mil | |||||||
10OZ: 14/38mil | 10OZ: 14/35mil | |||||||
13 | Dimension Tolerance | Hole Position | 0.08 ( 3 mils) | |||||
Conductor Width(W) | 20% Deviation of Master A/W |
1mil Deviation of Master A/W |
||||||
Outline Dimension | 0.15 mm ( 6 mils) | 0.10 mm ( 4 mils) | ||||||
Conductors & Outline ( C – O ) |
0.15 mm ( 6 mils) | 0.13 mm ( 5 mils) | ||||||
Warp and Twist | 0.75% | 0.50% | ||||||
14 | Solder Mask | Max drilling tool size for via filled with Soldermask (single side) | 35.4mil | 35.4mil | ||||
Soldermask color | Green, Black, Blue, Red, White, Yellow,Purple matte/glossy | |||||||
Silkscreen color | White, Black,Blue,Yellow | |||||||
Max hole size for via filled with Blue glue aluminium | 197mil | 197mil | ||||||
Finish hole size for via filled with resin | 4-25.4mil | 4-25.4mil | ||||||
Max aspect ratio for via filled with resin board | 8:1 | 12:1 | ||||||
Min width of soldermask bridge | Base copper≤0.5 oz、Immersion Tin: 7.5mil(Black), 5.5mil(Other color) , 8mil( on copper area) | |||||||
Base copper≤0.5 oz、Finish treatment not Immersion Tin : 5.5 mil(Black,extremity 5mil), 4mil(Other color,extremity 3.5mil) , 8mil( on copper area |
||||||||
Base coppe 1 oz: 4mil(Green), 5mil(Other color) , 5.5mil(Black,extremity 5mil),8mil( on copper area) | ||||||||
Base copper 1.43 oz: 4mil(Green), 5.5mil(Other color) , 6mil(Black), 8mil( on copper area) | ||||||||
Base copper 2 oz-4 oz: 6mil, 8mil( on copper area) | ||||||||
15 | Surface Treatment | Lead free | Flash gold(electroplated gold)、ENIG、Hard gold、Flash gold、HASL Lead free、OSP、ENEPIG、Soft gold、Immersion silver、Immersion Tin、ENIG+OSP,ENIG+Gold finger,Flash gold(electroplated gold)+Gold finger,Immersion silver+Gold finger,Immersion Tin+Gold finge | |||||
Leaded | Leaded HASL | |||||||
Aspect ratio | 10:1(HASL Lead free、HASL Lead、ENIG、Immersion Tin、Immersion silver、ENEPIG);8:1(OSP) | |||||||
Max finished size | HASL Lead 22″*39″;HASL Lead free 22″*24″;Flash gold 24″*24″;Hard gold 24″*28″;ENIG 21″*27″;Flash gold(electroplated gold) 21″*48″;Immersion Tin 16″*21″;Immersion silver 16″*18″;OSP 24″*40″; | |||||||
Min finished size | HASL Lead 5″*6″;HASL Lead free 10″*10″;Flash gold 12″*16″;Hard gold 3″*3″;Flash gold(electroplated gold) 8″*10″;Immersion Tin 2″*4″;Immersion silver 2″*4″;OSP 2″*2″; | |||||||
PCB thickness | HASL Lead 0.6-4.0mm;HASL Lead free 0.6-4.0mm;Flash gold 1.0-3.2mm;Hard gold 0.1-5.0mm;ENIG 0.2-7.0mm;Flash gold(electroplated gold) 0.15-5.0mm;Immersion Tin 0.4-5.0mm;Immersion silver 0.4-5.0mm;OSP 0.2-6.0mm | |||||||
Max high to gold finger | 1.5inch | |||||||
Min space between gold fingers | 6mil | |||||||
Min block space to gold fingers | 7.5mil | |||||||
16 | V-Cutting | Panel Size | 500mm X 622 mm ( max. ) | 500mm X 800 mm ( max. ) | ||||
Board Thickness | 0.50 mm (20mil) min. | 0.30 mm (12mil) min. | ||||||
Remain Thickness | 1/3 board thickness | 0.40 +/-0.10mm( 16+/-4 mil ) | ||||||
Tolerance | ±0.13 mm(5mil) | ±0.1 mm(4mil) | ||||||
Groove Width | 0.50 mm (20mil) max. | 0.38 mm (15mil) max. | ||||||
Groove to Groove | 20 mm (787mil) min. | 10 mm (394mil) min. | ||||||
Groove to Trace | 0.45 mm(18mil) min. | 0.38 mm(15mil) min. | ||||||
17 | Slot | Slot size tol.L≥2W | PTH Slot: L:+/-0.13(5mil) W:+/-0.08(3mil) | PTH Slot: L:+/-0.10(4mil) W:+/-0.05(2mil) | ||||
NPTH slot(mm) L+/-0.10 (4mil) W:+/-0.05(2mil) | NPTH slot(mm) L:+/-0.08 (3mil) W:+/-0.05(2mil) | |||||||
18 | Min Spacing from hole edge to hole edge | 0.30-1.60 (Hole Diameter) | 0.15mm(6mil) | 0.10mm(4mil) | ||||
1.61-6.50 (Hole Diameter) | 0.15mm(6mil) | 0.13mm(5mil) | ||||||
19 | Min spacing between hole edge to circuitry pattern | PTH hole: 0.20mm(8mil) | PTH hole: 0.13mm(5mil) | |||||
NPTH hole: 0.18mm(7mil) | NPTH hole: 0.10mm(4mil) | |||||||
20 | Image transfer Registration tol | Circuit pattern vs.index hole | 0.10(4mil) | 0.08(3mil) | ||||
Circuit pattern vs.2nd drill hole | 0.15(6mil) | 0.10(4mil) | ||||||
21 | Registration tolerance of front/back image | 0.075mm(3mil) | 0.05mm(2mil) | |||||
22 | Multilayers | Layer-layer misregistration | 4layers: | 0.15mm(6mil)max. | 4layers: | 0.10mm(4mil) max. | ||
6layers: | 0.20mm(8mil)max. | 6layers: | 0.13mm(5mil) max. | |||||
8layers: | 0.25mm(10mil)max. | 8layers: | 0.15mm(6mil) max. | |||||
Min. Spacing from Hole Edge to Innerlayer Pattern | 0.225mm(9mil) | 0.15mm(6mil) | ||||||
Min.Spacing from Outline to Innerlayer Pattern | 0.38mm(15mil) | 0.225mm(9mil) | ||||||
Min. board thickness | 4layers:0.30mm(12mil) | 4layers:0.20mm(8mil) | ||||||
6layers:0.60mm(24mil) | 6layers:0.50mm(20mil) | |||||||
8layers:1.0mm(40mil) | 8layers:0.75mm(30mil) | |||||||
Board thickness tolerance | 4layers:+/-0.13mm(5mil) | 4layers:+/-0.10mm(4mil) | ||||||
6layers:+/-0.15mm(6mil) | 6layers:+/-0.13mm(5mil) | |||||||
8-12 layers:+/-0.20mm (8mil) | 8-12 layers:+/-0.15mm (6mil) | |||||||
23 | Insulation Resistance | 10KΩ~20MΩ(typical:5MΩ) | ||||||
24 | Conductivity | <50Ω(typical:25Ω) | ||||||
25 | Test voltage | 250V | ||||||
26 | Impedance control | ±5ohm(<50ohm), ±10%(≥50ohm) |
PCBTok offers flexible shipping methods for our customers, you may choose from one of the methods below.
1. DHL
DHL offers international express services in over 220 countries.
DHL partners with PCBTok and offers very competitive rates to customers of PCBTok.
It normally takes 3-7 business days for the package to be delivered around the world.
2. UPS
UPS gets the facts and figures about the world’s largest package delivery company and one of the leading global providers of specialized transportation and logistics services.
It normally takes 3-7 business days to deliver a package to most of the addresses in the world.
3. TNT
TNT has 56,000 employees in 61 countries.
It takes 4-9 business days to deliver the packages to the hands
of our customers.
4. FedEx
FedEx offers delivery solutions for customers around the world.
It takes 4-7 business days to deliver the packages to the hands
of our customers.
5. Air, Sea/Air, and Sea
If your order is of large volume with PCBTok, you can also choose
to ship via air, sea/air combined, and sea when necessary.
Please contact your sales representative for shipping solutions.
Note: if you need others, please contact your sales representative for shipping solutions.
You can use the following payment methods:
Telegraphic Transfer(TT): A telegraphic transfer (TT) is an electronic method of transferring funds utilized primarily for overseas wire transactions. It’s very convenient to transfer.
Bank/Wire transfer: To pay by wire transfer using your bank account, you need to visit your nearest bank branch with the wire transfer information. Your payment will be completed 3-5 business days after you have finished the money transfer.
Paypal: Pay easily, fast and secure with PayPal. many other credit and debit cards via PayPal.
Credit Card: You can pay with a credit card: Visa, Visa Electron, MasterCard, Maestro.