Alumina 96 PCB with silver conductors and white glas encapsulant

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Alumina PCB (Al2O3 PCB) – C-Production

Name: Alumina PCB (Al2O3 PCB) - C-Production
SKU: OCTO-AL2O3-EO
Availability: InStock

€0.00

Our C-PRODUCTION solution for Alumina PCB lets you obtain a quote and allows you to order online by completing the form below. Easy, fast, and convenient.
Note: Design rules can be found in the description below.

The available options will suit the majority of Aluminum oxide PCB designs. However, if you do require more stringent/other specifications that not listed or are in need of a high volume quote, please contact us here.

Measurement Millimeter (mm) Inches (")

Your part number

Delivery format

Conductor Copper (Cu) Silver (Ag) Silver-Palladium (AgPd)

Layers

Note: Copper - 1 or 2 layers Silver - 1 to 4 layers possible Silver-Palladium - 1 to 4 layers possible

Top masking

Surface finish

Top Silkscreen

Quantity

Reorder? Yes

Upload your design (Gerber, ODB++, DXF, DWG, PDF or STEP). Please group multiple files into one (ZIP. RAW).

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Shipping cost and VAT or sales tax, if applicable, will be added during check out

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, medical circuits, sensor modules, antennas, and high-frequency devices.

If you are looking to test this material and only need a few prototypes at a lower cost and faster lead time. Then check out our alumina PCB C-proto solution.

Click to learn more about the benefits of Alumina PCB

Ordering a Ceramic PCB

1. Quote & Order

Get your quote and order immediately online. No waiting, no hassle.
Anything unclear or still unsure about something? Contact us anytime!

2. Design check

We will check if your design meets our production specifications and make a panel drawing, if applicable. If something needs to be changed, we will let you know.

3. Production

After the design is ready and frozen, it is off to the factory. This is where the magic happens...

4. Final check & shipment

As soon as your order is made, it gets send back to our Belgian location for a final quality check. If everything looks good, we'll ship it out to you.

Design rules for our C-PRODUCTION Alumina PCB solution:

C-Production DESIGN RULES ALUMINA PCB		Copper (Cu)		Silver (Ag) / Silver-Palladium (AgPd)
		Metric	Imperial	Metric	Imperial
	Max. panel Dimensions (a)*(b)	125mmx125mm	5" x 5"	125mmx125mm	5" x 5"
	Max. circuit Dimensions (c)*(d)	115mmx115mm	4.5" x 4.5"	115mmx115mm	4.5" x 4.5"
	Thickness (e)	0.38 \| 0.5 \| 0.63 \| 0.76 \| 1.0 \| 1.5 mm	10 \| 15 \| 20 \|25 \|30 \| 39 \| 50 mil	0.25 \| 0.38 \| 0.5 \| 0.63 \| 0.8 \| 1.0 mm	10 \| 15 \| 20 \| 25 \| 30 \| 39 mil

	Conductor thickness	18 \| 35 \| 70 \| 105 \| 140 \| 280um (please enquire for other thicknesses up to 350um)	0.5 \| 1 \| 2 \| 3 \| 4 \| 8oz (please enquire for other thicknesses up to 10oz)	15 \| 40um	15 \| 40um
	Layers	Single & double-sided		single, double sided, 3 or 4 layers
	Surface finish	None, Silver (Ag), OSP, ENIG, ENEPIG (*)		None (Ag, AgPd). Please enquire for ENIG or ENEG (*)
	Solder resist	green, white, red, blue, black		Glass encapsulant: white, black or high reflective white
	Solder resist minimum opening	0.2mm		0.2mm
	Solder resist minimum pad overlap	0.1mm		0.1mm
	Silk screen / legend	black, white		black, white

	Min. line width (a)	0.10 mm (@ 18 or 35um)	6 mil (@ 0.5 or 1 oz)	0.2 mm	8 mil
	Min. line spacing (b)	0.10 mm (@ 18 or 35um)	6 mil (@ 0.5 or 1 oz)	0.2 mm	8 mil
	Line/pad to edge spacing (f)	0.2 mm	8 mil	0.2 mm	8 mil
	Via diameter (c)	0.15mm-0.3mm	6 mil-12 mil	0.15mm-0.3mm	6 mil-12 mil
	Min. via spacing (b)	0.3mm	12 mil	0.3mm	12 mil
	Via/hole to edge spacing	3 x via diameter		0.5mm	20 mil
	Through hole metallisation	Plated through hole (PTH)	#colspan#	Silver (Ag) Filled vias
	Min. annular ring diameter (d)	0.2 mm	8 mil	0.2 mm	8 mil
	Min. annular ring spacing (e)	0.15 mm	6 mil	0.15 mm	6 mil
	Annular ring to edge spacing (g)	0.15 mm	6 mil	0.15 mm	6 mil
	Line to hole/via spacing (h)	0.2 mm	8 mil	0.2 mm	8 mil

	Dimensional tolerance	+/- 0.2mm	+/- 8 mil	+/- 0.2mm	+/- 8 mil
	Thickness tolerance	+/- 10%		+/- 10%
	Hole tolerance	+/- 0.1mm	+/- 4 mil	+/- 0.1mm	+/- 4 mil
	Pad to hole/via tolerance	+/- 0.1mm	+/- 4 mil	+/- 0.1mm	+/- 4 mil
	Conductor thickness tolerance	+/-15%		+/-20%
	Line/Space width tolerance	+/-20% or 25µm @ 35um	+/-20% or 1 mil @ 1oz	+/- 50µm	+/- 2 mil
	Misalignment (only for double sided)	≤100µm	≤ 4 mil	≤100µm	≤ 4 mil
(*) suitable for gold wire bonding (ENEG - Electroless Ni, Electroless Au & ENEPIG - - Electroless Nickel, Electroless Palladium, immersion Gold)

Delivery:

single units
panel with laser scribing (click for more info)
Panel without laser scribing
Note: panel X-out: ≤10%

Material properties Alumina 96%:

Property	Items	Unit	Al2O3 96%
Physical	Color	-	White
	Material - Aluminium Oxide	%	96%
	Water absorption	%	0
	Reflectivity	%	94
Electrical	Dielectric Constant (1MHz)	-	9-10
	Dielectric Loss	*10^-4	3
	Dielectric strength	MV/m or KV/mm	>15
	Insulation/Volume resistance	Ω·cm	>10^14
Mechanical	Density after Sintering (Bulk density)	g/cm3	>3.7
	flexural Strength (3 point)	Mpa	>400
	Surface Roughness	μm	0.2～0.75
	Camber	Lenght%	≦2
Thermal	Coefficient of Thermal Expansion (CTE)	ppm/°C	6.5-7.5
	Coefficient of Thermal Expansion (CTE) RT~500 °C	ppm/°C	6.5-8.0
	Thermal Conductivity (25°C)	W/m‧K	24
* Reflectivity test reference thickness of 1mm

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.

If your are not sure what conductor and surface finish you should use, you can always use this handy tool: What stackup to use for your signal layers for ceramic pcb.

FAQ - Ceramic PCB (C-Production)

When should I consider ordering via C-proto and when via C-production?

Answer: C-proto is perfect for people that only need a few pieces (5 panels or less => Please note; depending on the size, several PCB may fit on one panel). And the design needs to be relatively simple with only limited options regarding thickness, finish, and masking. The advantage of C-proto is that you can have your PCB relatively fast and at a much lower cost as you do not need to pay for tooling. C-proto orders are made on a specifically designed production line for prototypes and low volume.

C-production orders, on the other hand, will be made on a fully-fledged ceramic PCB production line at one of our partners which are designed for higher volume orders. It gives you many more options and tighter specifications but the downsides are price and longer lead time.

Where are the C-Production orders made?

Answer: We have several production partners in China, Taiwan, India, the USA, and Europe. In order to ensure consistent quality, every order standard passes our Belgian location for a final quality check before it is shipped to you.

Are there any import duties/tariffs that I need to pay?

You are responsible for local import formalities and duties on your order. Note that when you are based in the USA and choose copper metallization, your order will likely be made by our partner in China and is thus likely subject to a 25% tariff.

If you would like to avoid this, please switch to silver metallization (never made in China) or order via C-Proto if possible (made in Belgium). If both options do not suit you, contact us. We have other production partners in Taiwan that are also able to supply copper-based ceramic PCB but we need to quote this separately.

Can you ship faster?

Answer: We might. It depends on the production schedule of our partners. Contact us to discuss this.

How are Ceramic PCBs made?

Answer: we made a page about this that explains the different manufacturing technologies. Find it here.

Are ceramic pcb heavier or lighter then other PCB?

The substrate materials in itself, both Alumina 96% as well as Aluminum nitride are heavier then traditional pcb material like FR4 or even aluminum 5052 (metal core pcb). However, usually ceramic pcb are thinner (=< 1mm compared to 1.6mm typical) and require less copper (much heavier). In most cases the weight is therefor comparable or even lower. Below is an overview of the density of the different materials.

Al2O3 96%: >3.7 g/cm3 (typical thickness 0.25 - 1mm)
AlN: >3.33 g/cm3 (typical thickness 0.25 - 1mm)
FR4: 1.850 g/cm3 (typical thickness 0.8 - 1.6mm)
Aluminium (5052): 2.68 g/cm3 (typical thickness 1.5mm)
Koper: 8.96 g/cm3

Full FAQ can be found here

Ceramic-PCB.com is the online order portal from CERcuits, ceramic PCB & substrates. Learn more or contact us in case you have a high volume program or need different/more stringent specifications.

Lead time

Estimated lead times: 20-35 working days. (you will receive a most accurate estimated delivery date as soon as your design is frozen and your order moves to production) Note that depending on your design and the chosen specifications, the design for the manufacturing phase can range from days to weeks.