SiC ingots, compound semiconductor substrates and wide-bandgap materials experience significant mechanical stress and thermal impact during high-speed slicing. To ensure excellent surface quality, minimal sub-surface damage and avoid chipping or micro-cracks that lead to device failure, semiconductor manufacturers require highly stable cutting processes and precise process control. This is the only way to achieve reliable, high-yield production of high-quality wafers.

Processing SiC and compound semiconductors involves extremely high material and production costs. Around 30% of total substrate manufacturing cost comes from inefficient cutting, material loss and low yield, rather than raw materials alone. Choosing the right diamond wire cutting systems for specific applications can therefore greatly reduce production costs and improve efficiency.

High-precision diamond wire saws are used to slice hard, brittle ingots into thin wafers with stable tension and feed control. Their operating parameters are optimized for a stable process window with consistent wire tension, low vibration and narrow kerf width.