Why Green Silicon Carbide is Critical in Wafer Processing
Green silicon carbide (SiC) micropowder is widely used in the semiconductor industry due to its extreme hardness, chemical stability, and precise particle distribution. It serves as the core material in wafer slicing, grinding, and polishing, ensuring high yield, low surface damage, and consistent product quality.
How SiC Micropowder Improves Wafer Cutting & Polishing
Precision Cutting
Sharp edges of SiC micropowder particles allow efficient slicing with minimal wafer damage.
Edge chipping rate reduced by 40%, critical for high-value semiconductor wafers.
Surface Flatness and Smoothness
Micropowder ensures cutting and polishing achieve surface roughness ≤ Ra 0.2 μm.
Mirror-like finish removes sub-micron scratches, essential for device performance.
Chemical Stability in Cutting Fluids
Green SiC maintains performance in aqueous or oil-based cutting fluids without degrading or reacting.
Enhanced Polishing Efficiency
High hardness and sharp particle morphology improve material removal rate while maintaining wafer integrity.
Applications in Semiconductor Industry
Wafer Slicing – For silicon, GaAs, and compound semiconductors
Precision Polishing – Achieving mirror finishes on wafers, substrates, and MEMS devices
Grinding – Removing surface irregularities efficiently without introducing defects
CMP (Chemical Mechanical Polishing) – Enhances planarization while protecting wafer edges
Product Comparison
| Product Type | Purity | Particle Size (D50) | Hardness (Mohs) | Key Application | Notes |
|---|---|---|---|---|---|
| Green SiC Micropowder 4N | ≥99.99% | 0.5–1 μm | 9.2 | Wafer polishing, precision grinding | High purity for fine polishing; low contamination |
| Green SiC Micropowder 5N | ≥99.999% | 0.3–0.5 μm | 9.2 | Ultra-precision polishing, semiconductor CMP | For advanced semiconductor wafers; ultra-smooth surface |
| Green SiC Micropowder 3N | ≥99.9% | 1–3 μm | 9.2 | General cutting, grinding | Cost-effective, suitable for bulk slicing processes |
| Black SiC Micropowder 4N | ≥99.99% | 1–2 μm | 9.0 | Standard wafer cutting, abrasive applications | Lower purity, economical choice for non-critical wafers |
Tip: For ultra-precision wafer polishing, 5N green SiC ensures highest surface quality. For general wafer slicing, 3N or 4N grades provide cost-effective performance.
FAQ
1. What particle size is recommended for wafer polishing?
0.3–0.5 μm for ultra-precision polishing (5N grade)
0.5–1 μm for standard polishing (4N grade)
2. Can green SiC reduce wafer edge chipping?
Yes. Its sharp particle morphology and high hardness reduce edge chipping by up to 40%, critical for high-yield semiconductor production.
3. How does purity affect wafer quality?
Higher purity (5N) reduces contamination, prevents defects, and ensures ultra-smooth surfaces, essential for advanced semiconductor applications.
4. Can black SiC be used for wafer processing?
Yes, black SiC is suitable for general cutting and grinding but may not achieve ultra-smooth wafer surfaces due to lower purity and slightly lower hardness.
5. What is the difference between green and black SiC?
Green SiC is harder and more chemically stable, ideal for precision applications. Black SiC is cost-effective for non-critical processes like bulk cutting.
6. Is SiC micropowder compatible with all cutting fluids?
Yes, high-purity green SiC is chemically inert and stable in both aqueous and oil-based cutting fluids.
Contact Us
Looking for green or black SiC micropowder for semiconductor wafer processing?
ZhenAn New Materials offers:
Green SiC micropowder (3N–5N, 88–90% purity)
Controlled particle size for precise cutting and polishing
Bulk supply with technical guidance for wafer manufacturing
Support for CMP, slicing, grinding, and polishing processes
📧 Email: market@zanewmetal.com
📱 WhatsApp: +86 155 1882 4805
Contact us today for quotation and technical guidance within 24 hours.
Why Choose ZhenAn for Your Silicon Carbide Products
High Purity & Consistency – ZhenAn provides SiC with precise purity levels (88%, 90%, 98%), ensuring reliable performance for demanding applications.
Wide Product Range – From micropowders to lumps, black and green silicon carbide, we supply grades for metallurgy, abrasives, ceramics, and DPF filters.
Competitive Factory Prices – Direct factory supply guarantees cost-effective solutions without compromising quality.
Strict Quality Control – Every batch undergoes rigorous inspection to meet international standards.
Fast & Flexible Delivery – Large inventory and efficient logistics support timely delivery worldwide.