Patent ID: 8479681
Filing Date: 2013-07-09
Classification: B23K,H01L,Y10T

Abstract:
1. A system for recrystallizing a semiconductor thin film using a controllable radiation beam source, comprising: a mask adapted to operatively couple to the radiation beam source; and a processing arrangement adapted to operatively couple to the radiation beam source and the mask, wherein the processing arrangement is configured to: (a) control the radiation beam source to emit at least one beam pulse, (b) mask the at least one beam pulse to produce at least one pattern of beamlets, (c) irradiate a target area of a first region of the semiconductor thin film with a pulse of the at least one pattern of beamlets, wherein each beamlet of the at least one pattern of beamlets has sufficient fluence to melt semiconductor material in the target area on which it is incident, and wherein the molten semiconductor material in the target area recrystallizes when it is no longer exposed to the incident beamlet; and (d) continuously translate the semiconductor thin film relative to the at least one pattern of beamlets such that a second region of the surface of the semiconductor thin film is irradiated in the same manner as in (c), wherein the second region corresponds to a second area which is separate from a first area corresponding to the first region.