Method for making a redistributed wafer using transferrable redistribution layers

摘要

A method of making redistributed electronic devices that includes providing a wafer having a plurality of electronic devices, each electronic device having a pattern of contact areas forming die pads. The method also includes forming redistribution layers on a temporary substrate having a pattern of contact areas forming wafer bonding pads matching the die pads and a pattern of contact areas forming redistributed pads different than the wafer bonding pads, the wafer bonding pads are coupled to the redistributed pads through a plurality of stacked conductive and insulating layers. The die pads are coupled to the wafer bonding pads, and the temporary substrate is removed. The wafer and redistribution layers are then divided into a plurality of redistributed electronic devices.