Chamfering wafer processing step marks the level of technology

Wafer chamfering, also known as a full circle of silicon , silicon is an essential step of the normalized form . In a sense, it has chamfered wafer processing step marks the level of technology . The purpose of the chamfer is to reduce silicon  synthetic diamond , to prevent cracking of silicon , to improve the yield , when the epitaxial silicon to prevent curling and slip lines , to improve the quality of  Diamond blade  important role .  Abrasive grinding wheel  main silicon materials in foreign companies have also adopted the relevant units . Previously used in China and silicon wafer chamfering machine chamfering wheel lines imported from Japan , the manufacturing technology are " patent ." Now , wafer chamfering machine and grinding wheel China has succeeded in the trial and has been used in production . Chamfer with a diamond wheel only wafer manufacturing and use , to talk about some understanding and experience . Wheel base design and main parameters plated metal bonded diamond abrasive each species , have their own type of matrix design , wafer chamfering with a diamond grinding wheel is no exception. Silicon wafer with a diamond grinding wheel , silicon qualified edges must be rounded end face without chipping, to achieve this purpose , the wheel base body structure is a key factor.