Factors and Effects of Blade Geometrical Distortion on QFN Package Partial Cut Sawing Process

Quad Flat No leads (QFN) Packages used copper base lead frame that was commonly known as a ductile material which has challenging methods on package sawing process such as pre-cut sawing for Automotive products on manufacturing today.  Blade constructional configuration includes inner diameter (ID), outer diameter (OD) and thickness geometry usually rectangular for kerf width requirements.  Blade mechanical composition consist of diamond grits (abrasive grains), bonding materials (to hold the abrasive grains) and bonding type concentration (volume of abrasive grains) which are all depends on manufacturing requirements