Patent ID: 7622334

Claim:
A cutting method for wafer-level packaging, comprising: providing a cap wafer, and the cap wafer comprising a front surface and a back surface; performing a surfacing process on the front surface of the cap wafer, and at the same time forming a plurality of cavities and a plurality of precutting lines in the cap wafer; and each of the precutting lines has a depth lesser than that of each of the cavities; providing a device wafer, and a plurality of devices and a plurality of bonding pads are disposed on a surface of the device wafer; bonding the cap wafer and the device wafer, and aligning the cavities to the devices for allowing a plurality of sealing chambers to be formed between the cap wafer and the device wafer, sealing each device, respectively; performing a cap wafer dicing process at the back surface of the cap wafer, dicing the cap wafer along the precutting lines, and allowing the portion of the cap wafer not bonded to the device wafer to be detached for exposing the bonding pads of the device wafer; and performing a device wafer dicing process, and forming a plurality of distinct packaged dies.