Patent ID: 8809123
Filing Date: 2014-08-19
Classification: H01L

Abstract:
1. A hybrid bonding method for semiconductor wafers, the method comprising: providing a first semiconductor wafer and a second semiconductor wafer, the first semiconductor wafer and the second semiconductor wafer each having a plurality of conductive pads disposed within an insulating material on a top surface thereof; forming a sealing layer over the top surfaces of the first semiconductor wafer and the second semiconductor wafer; removing the sealing layer from over the insulating materials of the first semiconductor wafer and the second semiconductor wafer, leaving a portion of the sealing layer disposed over the plurality of conductive pads of the first semiconductor wafer and the second semiconductor wafer; coupling the top surface of the second semiconductor wafer to the top surface of the first semiconductor wafer; and applying heat and pressure to the first semiconductor wafer and the second semiconductor wafer, wherein applying the pressure forms a bond between the insulating material of the first semiconductor wafer and the insulating material of the second semiconductor wafers, and wherein applying the heat forms a bond comprising the sealing layer between the plurality of conductive pads of the first semiconductor wafer and the plurality of conductive pads of the second semiconductor wafer.