SINM Alumina Ceramic Sheet 120 x 120 mm Al2O3 Board 0.25 to 1mm

Description

Product Overview

The SINM Alumina Ceramic Sheet is engineered from high‑purity aluminum oxide (Al2O3) with a minimum purity of 99%, delivering a combination of mechanical strength, thermal stability, and electrical insulation that meets the rigorous demands of modern electronic and industrial applications. Available in a range of thicknesses from 0.25 mm up to 1 mm, the sheet can be selected to match precise design tolerances, ensuring optimal performance in compact assemblies where space is at a premium. Each sheet is fabricated to a standard 120 × 120 mm dimension, providing a convenient footprint for a variety of substrate and carrier applications while maintaining consistent flatness and surface finish across the entire panel.

The material’s intrinsic properties include a high dielectric strength exceeding 10 kV/mm, a low dielectric constant around 9.8, and a thermal conductivity of approximately 30 W/m·K, making it suitable for high‑frequency, high‑power, and high‑temperature environments. The ceramic’s hardness (Mohs 9) and wear resistance enable it to withstand abrasive handling and machining processes without compromising dimensional stability. Additionally, the sheet exhibits excellent chemical resistance to acids, bases, and solvents, allowing it to be used in harsh chemical processing or cleaning regimes without degradation.

Usage

Designed for versatility, the SINM Alumina Ceramic Sheet finds application across a broad spectrum of industries. In the electronics sector, it serves as a reliable substrate for hybrid integrated circuits, photonic devices, and power modules where high thermal conductivity and dielectric isolation are critical. Its thin profile enables the creation of multilayer structures, reducing overall stack height while preserving electrical performance. In laser technology, the sheet acts as a carrier for laser diodes and optical components, providing a stable, low‑expansion platform that minimizes beam distortion.

Beyond electronics, the sheet is employed in sensor manufacturing, including pressure, temperature, and chemical sensors, where its inertness and stability ensure accurate signal transmission over extended service lives. The material also supports the production of chip capacitors, inductors, and spiral resonators, offering a compact, high‑density solution for RF and microwave circuits. For research laboratories, the sheet’s precise thickness and flatness make it an ideal base for experimental setups, prototype testing, and material characterization.

Industrial users benefit from the sheet’s durability in harsh environments, such as in petrochemical processing equipment, where its resistance to corrosion and thermal shock protects critical components. The sheet can be custom‑cut to meet unique size requirements, allowing engineers to integrate it seamlessly into existing designs without compromising performance.

Why Choose Us

Choosing SINM as your supplier means partnering with a manufacturer that adheres to strict quality control protocols throughout the production lifecycle. Each batch of alumina ceramic sheet undergoes comprehensive testing for purity, dimensional accuracy, dielectric strength, and mechanical properties, ensuring that the delivered product meets or exceeds industry specifications. Our state‑of‑the‑art sintering facilities employ controlled atmosphere processes that minimize impurity inclusion and promote uniform grain structure, resulting in a consistent and reliable end product.

We provide detailed certification documents, including material data sheets and test reports, so you have full visibility into the product’s characteristics. Our responsive technical support team is available to assist with material selection, design optimization, and troubleshooting, offering guidance that helps you reduce development time and cost. In addition, we maintain a flexible inventory system that can accommodate both standard and custom orders, delivering on‑time performance for high‑volume production runs as well as low‑quantity prototyping projects.

Our commitment to sustainability is reflected in the use of environmentally responsible manufacturing practices, including waste reduction and energy‑efficient processes. By selecting our alumina ceramic sheets, you benefit from a product that not only delivers superior performance but also aligns with responsible sourcing and production standards.

Key Features

• High‑purity Al2O3 (≥99%) ensures excellent dielectric and thermal properties for demanding applications.
• Thickness options from 0.25 mm to 1 mm provide flexibility for compact, high‑density designs.
• 120 × 120 mm standard size simplifies integration into common substrate footprints while allowing custom cuts.
• Superior hardness and wear resistance guarantee long‑term durability in abrasive or high‑stress environments.
• Dedicated technical support and comprehensive documentation ensure smooth implementation and after‑sales service.

FAQ

What is the maximum operating temperature for the alumina sheet?

The sheet can reliably operate up to 1700 °C in inert atmospheres, making it suitable for high‑temperature electronic and industrial applications.

Can the sheet be machined to custom dimensions?

Yes, we offer precision cutting services to produce custom sizes and shapes according to your specifications, with tolerances typically within ±0.02 mm.

What is the dielectric strength of the material?

The alumina sheet provides a dielectric strength of at least 10 kV/mm, offering robust electrical insulation for high‑voltage components.

Is the material compatible with standard PCB manufacturing processes?

Absolutely. The sheet can be processed using conventional PCB fabrication steps such as drilling, laser cutting, and metallization, enabling seamless integration into existing production lines.

How does the sheet perform in corrosive environments?

Al2O3 exhibits excellent chemical resistance to acids, bases, and solvents, allowing the sheet to maintain its integrity even when exposed to aggressive chemicals.