1. What is M-Plane Sapphire?Sapphire (α-Al₂O₃) belongs to the hexagonal crystal system, with several common orientations:C-plane (0001): Polar plane, widely used in GaN epitaxy.A-plane (11-20): Non-polar plane, reduces polarization effects.M-plane (10-10): Non-polar plane, surface normal perpendicular to the a-

A Comprehensive Explanation of Primary Flat and Secondary Flat
As power electronics and wide-bandgap semiconductors continue to advance, silicon carbide (SiC) substrates have become essential materials for electric vehicles, photovoltaic inverters, high-voltage power supplies, and RF devices. Among the many parameters

As advanced packaging and 3D integration technologies continue to accelerate, wafer thinning has become an irreversible trend across the semiconductor industry. From traditional packaging to heterogeneous integration, and from power devices to advanced logic, the required wafer thickness is being pushed to new limits.

What Is Wafer Warp?Wafer warp refers to the global deviation of a semiconductor wafer from a flat reference plane. According to ASTM and industry definitions, bow describes the single-point displacement of the wafer center relative to a reference plane, while warp represents the height difference between the highest an

I. Current Status of the Silicon Carbide Industry and Its Application ProspectsSilicon carbide (SiC) is valued for its outstanding physical and chemical properties, making it indispensable in industrial manufacturing, aerospace, defense, and semiconductor technologies. Traditionally, its high hardness—second only

When people hear “diamond,” they often think of a sparkling gemstone. But in industry, diamond is a true “heavy hitter.” What many don’t realize is that diamond does not come in just one structural form. Subtle yet critical differences between single-crystal and polycrystalline diamonds le

1. Overview of the Processing ChainSapphire substrate fabrication follows a well-defined progression from coarse material shaping to precision finishing. The complete process flow is:Crystal Growth → Orientation & Rounding → Multi-Wire Slicing → Grinding → CMP Polishing → Cleaning & InspectionE

In electric vehicles, renewable energy systems, rail transit, and even the coming wave of 6G communication, one material is becoming the key to technological transformation — silicon carbide (SiC) single-crystal substrates.
As the core material of third-generation semiconductors, SiC is redefining the limits of p

— Surface Roughness and Application Analysis of Multi-wire Slicing, Grinding, and CMP Polishing
I. Characteristics and Processing Challenges of Silicon CarbideSilicon carbide (SiC) is a third-generation wide-bandgap semiconductor material known for its superior thermal, mechanical, and electrical properties. It i

1. From Optical Innovation to Material RevolutionAugmented Reality (AR) is rapidly emerging as a key interface for next-generation human–computer interaction.
From industrial assistance and education to consumer entertainment, AR glasses are evolving quickly. However, achieving high resolution, high brightness, c