Patent ID: 7521277
Filing Date: 2009-04-21
Classification: H01L

Abstract:
1. A method for manufacturing a semiconductor device comprising the steps of: forming a multilayer wiring film including wiring layers and insulating layers on a semiconductor substrate; introducing a dopant into the semiconductor substrate, from a surface of the semiconductor substrate opposite to the forming surface of the multilayer wiring on the semiconductor substrate, to form a doped region; forming a thermally unstable region over the doping side of the semiconductor substrate; and activating the dopant without heat treating the thermally unstable region at or greater than 400° C., wherein, the activation is performed by irradiating the dopant with a combination of electromagnetic waves having a main spectrum peak at a wavelength of 1.1 μm or less and an energy density of about 1.5 J.cm the irradiation is performed from the side of the semiconductor substrate opposite to the forming side of the multilayer wiring on the semiconductor substrate, to form a doped region.