Patent ID: 7247503

Claim:
A method for forming an epitaxial layer over a seeding layer in a capacitor being formed over an interconnect structure, comprising: providing the seeding layer and an annealing layer of the capacitor being formed over the interconnect structure, wherein the annealing layer is in an amorphous phase and is disposed over the seeding layer, and a seeding layer/annealing layer interface is defined between the seeding layer and the annealing layer; selecting a laser having a desired wavelength for maximum absorption at the seeding layer/annealing layer interface of the capacitor being formed over the interconnect structure; and directing laser energy from the selected laser at the annealing layer of the capacitor being formed over the interconnect structure, wherein the laser energy is directed at the annealing layer of the capacitor being formed over the interconnect structure until the annealing layer of the capacitor being formed over the interconnect structure is annealed from the amorphous phase to form an epitaxial layer over the seeding layer in one single step.