Patent ID: 8361882
Filing Date: 2013-01-29
Classification: H01L

Abstract:
1. A method for manufacturing a semiconductor device comprising: forming at least a portion of an element in a base body layer; forming a peeling layer through ion implantation of a substance for peeling into the base body layer; forming a planarizing film having a planar surface so as to cover said at least the portion of the element; separating the base body layer in which the peeling layer has been formed in the direction of thickness of the base body layer in a prescribed separating region to form a die having said at least the portion of the element; bonding said die onto a substrate at a surface of said planarizing film; peeling and removing a portion of the base body layer in the die that has been bonded to the substrate along the peeling layer; and prior to the formation of said die, forming a groove, open to the surface of the planarizing film, so as to include at least a portion of the separating region in a bottom surface of the groove, wherein in the step of forming the groove, an external shape of the die is shaped as a polygon in which all internal angles are obtuse, when viewed from a direction of thickness of the base body layer.