Wafer Dicing Process Dicing is a process used to produce chip-size hunks from a silicon wafer. This technology requires new control capabilities and greater accuracy. The rate at which the wafer substrate is fed into the cutting blade is a key factor in productivity and yield. However, the speed of the wafer substrate can be limited due to chip formation and blade yield. To reduce the chance of overfeeding the cutting blade, a special monitoring method is recommended. This monitoring technique uses a measuring method to determine the maximum feed rate without exceeding the limitations of the blade. The torque applied to the blade is a common parameter that is monitored.
Dicing machines use a dicing blade to crush substrate material while removing debris. The dicing blade is installed in a dedicated dicing street between the active parts of the die. The blade travels along the streets and cuts the substrate material to the same width as the dice. This action causes a groove to form in the substrate. The width of the groove depends on the thickness of the blade.
The dicing blades are made of metal, and they will crush the substrate material and remove any debris. The dicing blades are typically mounted between the active areas of the die, and the process is repeated until the desired thickness is achieved. The cutting blades must also be sharp and have high indexing axes accuracy. Finally, the dicing saws must have advanced alignment algorithms to ensure precise cuts.