Direct Bonding Copper Ceramic Circuit Board For Automotive Components

Direct Bonding Copper Ceramic Circuit Board For Automotive Components

Substrate Material: 96% Al2O3
Board Thickness: 0.635mm+/-0.1mm
Conductor: 100um copper
Solder Mask: Green Glass Glaze
Silkscreen: N/A
Surface Finishing: ENEPIG 3u’’
Application: Automotive Components

Item1	DCB/DBC Capabilities
Layer Count	1-2 Layers
Max Board Dimension	120mmx180mm
Min Board Thickness	0.254mm
Max Board Thickness	2.0mm
Conductor Thickness	100-600μm
Min Line Width/Line Space	300/300μm
Substrate Type	AI2O3
Substrate Thickness	0.254-2.0mm
Min Hole Diameter	0.25mm (No Via Hole)
Min Hole Spacing	250μm
Min PAD Ring(Single)	0.125mm
PTH Wall Thickness	N/A
Min Solder PAD Dia	0.5mm
Min Soldermask Bridge	Green Oil 130μm; Others 150μm
Min BAG PAD Margin	0.35mm
PTH/NPTH Dia Tolerance	0.075mm
Hole Position Deviation	75μm
Outline Tolerance	Laser: +/-0.13mm
Line Width/Spac Tolerance	±20%
Surface Treatment	OSP/Immersion Gold/Nickel Plated Gold/Immersion Silver/Nickel Plated
Thermal Stress	7.3ppm/k

Item2	Attribute
Brand	CeramTec / GTT / Huaqing / Laird / Maruwa / Rogers / Toshiba
Base Material	AI2O3
Base Material Thickness (exclude conductor)	0.45-3.2mm
Thermal Conductivity	24-170W/mk
Soldermask Type	Aluminum Oxide
Tg Value	800℃
Halogen Free	No
Breakdown Voltage	>15KV/mm
Dielectric Constant (MHZ)	9.4 (1MHz); 9.1 (13GHz)
Water Absorption	≤0.5%
ROHS	Yes
Flammability	Grade A
Thermal Conductivity (W/m.K, or W/m.C)	24-170W/mk
Dielectric Strength	15KV/mm
Wrap & Twist	3%

Prototype(<1m²)	Layers	Normal Service	Expedited Service
DCB/DBC Ceramic PCB	1 Layer	2 - 3 weeks	1.5 weeks
	2 Layers	2 - 3 weeks	1.5 weeks

Production	Layers	Normal Service	Expedited service
DCB/DBC Ceramic PCB	1 Layer	3 - 4 weeks	1.5 - 2 weeks
	2 Layers	3 - 4 weeks	1.5 - 2 weeks

Auto Components DBC Ceramic Substrate PCB Manufacturing Process-Bestceramicpcb

In comparison to traditional PCBs that utilize substrate materials such as epoxy glass fiber, polyimide, polystyrene, and phenolic resin, ceramic PCBs possess distinct properties that make them highly desirable:

• Excellent thermal conductivity

• Chemical erosion resistant

• Agreeable mechanical intensity

• Compatible with CTE of components

• Easy to implement high-density tracing.

Due to the increasing demand for electronic devices with multiple functions, miniaturization, high speed, and larger integrated circuits (ICs), the requirements for ceramic PCBs have become more stringent. Factors such as CTE, thermal conductivity, loss, dielectric constant, and resistance to tape (solder mask) play critical roles in meeting these requirements.

DBC Ceramic PCB Specification:

Substrate material:	96% Al2O3
Board thickness:	0.635mm+/-0.1mm
Conductor:	100um copper
Solder mask:	Green Glass Glaze
Silkscreen:	N/A
Surface finishing:	ENEPIG 3u’’
Application:	Automotive fields

High -Power Semiconductor
Solar Panel
Aerospace
Automobile Product
Communications Industry
High Power LED Lighting

Auto Systems Application Ceramic PCB Design Service Center-Bestceramicpcb

Background:

AcKult company is a renowned automotive parts manufacturer known for their commitment to quality and innovation. They sought to develop an electric power transmitter module capable of wirelessly transmitting power to EVs, providing a seamless and efficient charging solution. They have an initial design, but not sure this design is available and feasible, so they reached to us for evaluation and fabrication.

Project challenge:

Due to it is for an automotive part, the quality control is very strict, it must conform to IPC Class III.
The ceramic PCB must have a good flatness.

Solution:

To meet their objectives, we suggested to utilize DBC ceramic circuit boards made from aluminum nitride (AlN), a high-performance ceramic material known for its exceptional thermal and electrical properties. Due to the project is urgent and the deadline is on the way, we expedited the production run and finished the product in 5 days and dispatched out the ceramic PCBs in timely. AcKult team tested the PCBs immediately once receive the product and all 50pcs of them performed well and were in their expectation.

By incorporating AlN-based DBC ceramic circuit boards into their electric power transmitter modules, our client successfully developed an advanced solution for wireless power transmission in electric vehicles. These DBC ceramic circuit boards provided enhanced thermal management, excellent electrical insulation, high mechanical strength, and resistance to chemicals and corrosion. The result was a highly reliable and efficient electric power transmitter module for EV charging systems.

Result and Benefits:

Thanks to our fast fabrication and quick delivery service, AcKult team finished the task in time and they are appreciated our hard work and cooperation. Now they are one of valued customers of us.