Introduction
The DBC-ZTA ceramic substrate represents a significant advancement in ceramic PCB technology. By doping zirconium into Al₂O₃ ceramic, this substrate delivers enhanced reliability and performance, making it an ideal choice for medium-power applications. Combining the superior properties of zirconia with cost-effective manufacturing, the DBC-ZTA ceramic PCB is designed to meet the demanding requirements of modern industries.

Key Features and Advantages

Enhanced Reliability and Cost Efficiency

Compared to DBC-Al₂O₃, the DBC-ZTA ceramic substrate offers higher reliability, ensuring long-term performance in challenging conditions.

It provides a significant price advantage over AMB copper-clad laminates, making it a cost-effective choice for medium-power applications.

Superior Thermal Performance

The thermal conductivity of the DBC-ZTA ceramic substrate reaches 26 W/m·K at 25°C, ensuring efficient heat dissipation.

Its coefficient of thermal expansion (CTE) is 7.5×10⁻⁶/K in the temperature range of 40°C - 400°C, minimizing thermal stress and improving durability.

High Current-Carrying Capacity

Designed to carry large currents, the DBC-ZTA ceramic substrate is ideal for applications requiring high power output.

Customizable Design

The substrate can be tailored to meet specific requirements, with options for different ceramic thicknesses, copper layer thicknesses, and surface treatment methods.

Technical Specifications

PCB Stackup:

2-layer rigid PCB

Copper_layer_1: 35 μm

ZrO₂ Ceramic: 1.0 mm

Copper_layer_2: 35 μm

PCB Construction Details

Board Dimensions

The PCB measures 75 mm x 75 mm, with a dimensional tolerance of ±0.15 mm. This precise sizing ensures compatibility with a wide range of applications and enclosures.

Minimum Trace/Space

The minimum trace width and spacing are 15/17 mils, respectively. This design capability allows for high-density circuitry while maintaining reliable electrical performance.

Minimum Hole Size

The smallest hole size on the PCB is 0.6 mm, ensuring compatibility with standard components and connectors while maintaining structural integrity.

Finished Board Thickness

The overall thickness of the finished PCB is 1.1 mm. This compact design makes it suitable for applications where space is a critical factor.

Copper Weight (Inner/Outer Layers)

Both the inner and outer layers feature a copper weight of 1 oz (1.4 mils), providing excellent conductivity and current-carrying capacity.

Surface Finish

The PCB features an immersion gold surface finish, which enhances solderability, corrosion resistance, and overall durability.

Electrical Testing

Each PCB undergoes 100% electrical testing prior to shipment, ensuring that all circuits meet the required specifications and performance standards.

Quality Assurance and Availability

The DBC-ZTA ceramic PCB adheres to the IPC-Class-2 quality standard, ensuring high reliability and performance. Artwork files are supplied in Gerber RS-274-X format, and the product is available worldwide, making it accessible for global projects.

Typical Applications

The DBC-ZTA ceramic PCB is widely used in industries requiring high reliability and performance, including:

White Goods: Ensuring durability and efficiency in household appliances.

Electric Vehicles: Supporting high-power applications in EV systems.

Photovoltaic Inverters: Enhancing performance in solar energy systems.

Wind Turbines: Providing reliable power solutions for renewable energy.

Frequency Converters and Uninterruptible Power Supplies (UPS): Delivering stable power in critical applications.