Polishing Slurry (CeO2 CMP SLURRY)

Description

1. Product Overview

This product is a high-purity Cerium Oxide (CeO₂) based Chemical Mechanical Planarization (CMP) slurry, engineered for precision surface finishing of advanced dielectric materials. It is primarily used in semiconductor wafer fabrication, precision optics, and high-end electronic substrates to achieve angstrom-level surface planarity with minimal defect density. The key value proposition is its optimized removal rate selectivity combined with exceptionally low scratch incidence, directly improving device yield and reducing post-CMP cleaning costs. As feature sizes shrink below 10nm, this slurry becomes strategically critical for enabling next-generation logic and memory chip manufacturing.

2. Key Specifications & Technical Characteristics

• Chemical Composition: Cerium Oxide (CeO₂, 99.99% purity) dispersed in deionized water with proprietary anionic/non-ionic stabilizers

• Purity Level: Semiconductor grade; Total trace metal impurities < 1 ppm (Na, K, Fe, Cu, Zn individually)

• Physical Characteristics:

  • Form: Homogeneous aqueous colloidal dispersion

  • Color: Light tan to pale yellow

  • Mean Particle Size (D50): 150 ± 25 nm (customizable from 50 nm to 500 nm)

  • Particle Shape: Cubic/tetrahedral

  • Density: 1.28 – 1.35 g/cm³ @ 20°C

  • pH: 6.8 – 7.2 (neutral, equipment-friendly)

  • Viscosity: < 10 cP @ 25°C

• Packaging Options: 20 L polyethylene carboys, 200 L sealed drums, 1,000 L IBC totes, bulk tanker trucks

• Shelf Life: 12 months from manufacture when stored at 5–30°C in original sealed container (agitation recommended before use)

3. Core Industrial Applications

• Primary Industries: Semiconductor fabrication (foundries & IDMs), precision optics manufacturing, hard disk drive substrate production, LED sapphire wafer polishing

• Specific Operational Use Cases:

  • Interlayer dielectric (ILD) planarization in 300 mm wafer processing

  • Shallow trench isolation (STI) CMP for logic and memory devices

  • Final polishing of high-power laser optical glass and fused silica

• Performance Advantages vs. Alternatives (e.g., silica or alumina slurries):

  • Higher selectivity (oxide:nitride > 50:1) – reduces dishing and erosion

  • Faster removal rate – up to 400 nm/min on PECVD oxide, improving throughput

  • Lower defectivity – scratch density reduced by 40% vs. conventional ceria due to controlled particle hardness

  • Reduced consumable cost – longer pad life because of optimized particle morphology and stable dispersion

4. Competitive Advantages

• Quality Consistency: Lot-to-lot coefficient of variation (CV) < 3% for particle size and removal rate; each batch certified by SEM/EDS, ICP-MS, and dynamic light scattering (DLS).

• Supply Reliability: Dual-source raw material strategy and buffer stock of 120+ MT at regional hubs (North America, EU, Asia) ensures < 5-day lead time for emergency orders.

• Logistics Capability: UN-certified packaging with tamper-evident seals; temperature-controlled shipping across all climate zones.

• Price Competitiveness: Tier-1 performance at 15–20% lower cost per wafer than incumbent premium suppliers, enabled by proprietary in-house CeO₂ synthesis.

• Sustainability: 60% lower cobalt content than legacy ceria slurries; recyclable packaging with take-back program; wastewater treatment compatible (no halogenated additives).

• Technical Support: Full Material Safety Data Sheet (MSDS), process optimization guide, on-site filtration compatibility audit, and 24/7 process engineering support included.

5. Commercial & Supply Information

• Minimum Order Quantity (MOQ): 1,000 L (five 200 L drums or one IBC tote) for first-time trial; contract customers may negotiate lower MOQ.

• BULK 20MT Loading Capacity: 20 MT (±5%) per standard 20-ft ISO container, configured as 20 x 1,000 L IBC totes or 100 x 200 L drums on pallets.

• Loading per High-Cube Container (40 ft): 40 MT maximum, subject to axle weight limits and regional transport regulations.