Patent ID: 8906742

Claim:
A method of non-melt annealing a semiconductor substrate having a patterned surface and a melt temperature, comprising: scanning at least one first laser beam over the patterned surface, the at least one first laser beam being configured in a first incidence plane and having a first wavelength and a first intensity that heats the patterned surface to a preheat temperature that is below the melt temperature and less than an anneal temperature; and scanning at least one second laser beam over the patterned surface and relative to the first laser beam, the at least one second laser beam being configured in a second incidence plane and having a second wavelength and a second intensity that heats the patterned surface from the preheat temperature up to the anneal temperature; and selecting the first and second intensities to achieve the anneal temperature while minimizing at least one of edge damage and slip generation.