Patent ID: 6926935
Filing Date: 2005-08-09
Classification: C23C,H01J

Abstract:
1. A method of depositing a material onto a work piece, comprising: identifying target surface on the work piece, the target surface encompassing an area of interest; defining an electron-source surface proximal to but substantially exclusive of the target surface; providing deposition gas over the target surface; and irradiating at least a portion of the electron-source surface to generate secondary electrons projecting into a region over the target surface, said secondary electrons interacting with the deposition gas to deposit a layer of deposition material onto the target surface including the area of interest, said irradiation of at least a portion of the electron-source surface being performed without substantially irradiating the target surface at least until sufficient material is deposited onto the target surface to protect the target surface from irradiation damage, the area of interest in the target surface being substantially undamaged by said irradiation.