Patent ID: 8763235
Filing Date: 2014-07-01
Classification: G11B,H01L,Y10T

Abstract:
1. A method for performing bonding of a first substrate to a second substrate, the first substrate including a first plurality of solder pads and a first alignment mark set, the second substrate including a second plurality of solder pads and a second alignment mark set, the method comprising: aligning the first alignment mark set on the first substrate to the second alignment mark set on the second substrate, the first substrate including a first plurality of dots, the second substrate including a second plurality of dots configured to interlock with the first plurality of dots, the first alignment mark set being aligned with the second alignment mark set corresponding to the first plurality of dots being aligned with the second plurality of dots and the first plurality of solder pads being aligned with the second plurality of solder pads; locking the first plurality of dots with the second plurality of dots to form an interlocking key; and reflowing at least one of the first plurality of solder pads and the second plurality of solder pads, the first plurality of dots and the second plurality of dots remaining substantially solid during the reflowing step.