Patent ID: 7875554
Filing Date: 2011-01-25
Classification: C23C,H01L

Abstract:
1. A method for depositing a material on a surface of a wafer, comprising: applying an electroless plating solution to the surface of the wafer, the electroless plating solution being maintained at a temperature at which a plating reaction does not readily occur; exposing the surface of the wafer to radiant energy such that at least a first material present at the surface of the wafer and a second material present at the surface of the wafer are exposed to the radiant energy, wherein the second material is located near the first material; and controlling a wavelength range of the radiant energy such that the radiant energy is selectively absorbed by atoms, molecules, or both atom and molecules of the first material without being substantially absorbed by the second material, wherein the selective absorption of the radiant energy by the first material causes a selective heating and increased temperature of the first material, and wherein a lack of substantial absorption of the radiant energy by the second material avoids a substantial heating and increased temperature of the second material, wherein the radiant energy source is controlled to sufficiently heat the first material in exposure to the electroless plating solution to cause an electroless plating reaction to selectively occur on the first material without occurring on the second material.