The Challenge:
Performance That Holds Up Under Pressure
In semiconductor fabs, ceramic components like focus rings and chucks must endure plasma, heat, chemistries, voltage, and mechanical stress, cycle after cycle, with no margin for error.
Even minor wear or contamination can cause major defects or long downtime. That’s why we engineered POLARGuard™ ultra-high-purity alumina to deliver ultra-high purity, plasma resistance, and long-term stability—so your ceramic components stay clean, strong, and reliable.
How We Help:
High-Purity Alumina That Guards Advanced Ceramics
At Polar Performance Materials, we deliver ultra-high-purity alumina engineered for semiconductor ceramic components, like focus rings, liners, and electrostatic chucks. With narrow PSDs, controlled morphology, and traceable quality, our materials support pressing, sintering, and machining processes to ensure the dimensional stability, plasma resistance, and cleanliness critical to fab performance. Moreover, we work with customers to tailor surface characteristics (e.g., charge, dispersibility, functionalization) to ensure compatibility with specific slurry chemistries, helping optimize selectivity and planarity. PolarGuard is manufactured using a lean, low-emission, high-consistency process with full traceability. Every batch is tested, qualified, and accompanied by detailed specifications and COAs to support fast fab qualification.
Related products
Choose the form that fits your ceramic forming or sintering method.
Engineered alumina for pressed parts and sintered ceramics.
Engineered alumina for pressed parts and sintered ceramics.
Pure Precision. Proven Performance.
Ceramic customers count on PolarGuard for strong, stable materials they can shape into anything.
High-Purity Alumina
4N and 5N material supports sintering strength and protects what matters.
Tight Process Control
Our lab monitors PSD, surface area, and contamination levels batch by batch.
Tailored Form Factors
From powders to pellets, our formats align with forming, firing, and coating processes.
The Processes We Protect
We supply high-purity alumina that guards performance in ceramics used in electrical, structural, and industrial systems.
Traceable By Design
Our quality system maintains traceability across all batches. Whether you need to confirm PSD ranges or provide documentation for a second source, we make it easy to retrieve the records you need.
Frequently Asked Questions
A: Our high-purity alumina powders, beads, and pellets are used in electrical insulators, wear-resistant parts, and structural components. These applications require strength, purity, and repeatable forming characteristics.
A: We offer 4N to 5N purity levels with tight PSD control and clean sintering behaviors. This supports strong, dense ceramics with minimal porosity or variation.
A: Reach out with your specs and forming method. We’ll help you select the right PSD, purity, and format or recommend a test sample for validation.
A: We include reports with PSD curves, elemental analysis, and morphology data. We also retain samples and methods for future traceability.