Patent ID: 8883566
Filing Date: 2014-11-11
Classification: H01L

Abstract:
1. A method of manufacturing a semiconductor device, comprising: a groove forming step of forming grooves on respective front surfaces of first and second semiconductor wafers each including an aggregate of a plurality of semiconductor chips, such that the grooves each extend on a dicing line set between the semiconductor chips and to have a larger width than the dicing line; an arranging step of arranging the first and second semiconductor wafers so that the front surfaces thereof are opposed to each other after the groove forming step; a sealing step of sealing a space between the first semiconductor wafer and the second semiconductor wafer with underfill; a polishing step of polishing respective rear surfaces of the first and second semiconductor wafers until at least the grooves are exposed after the arranging step and the sealing step; and a dicing step of cutting a structure including the first and second semiconductor wafers and the underfill on the dicing line after the polishing step.