Invention Grant
US08642138B2 Processing method for cleaning sulfur entities of contact regions 失效
清理接触区硫体的加工方法

Processing method for cleaning sulfur entities of contact regions
Abstract:
A method for forming a thin film photovoltaic device. The method includes providing a transparent substrate comprising a surface region and forming a first electrode layer overlying the surface region of the transparent substrate. The first electrode layer has an electrode surface region. In a specific embodiment, the method includes masking one or more portions of the electrode surface region using a masking layer to form an exposed region and a blocked region. The method includes forming an absorber layer comprising a sulfur entity overlying the exposed region and removing the mask layer. In a specific embodiment, the method causing formation of a plurality of metal disulfide species overlying the blocked region. In a specific embodiment, the metal disulfide species has a semiconductor characteristic. The method includes subjecting the plurality of metal disulfide species to electromagnetic radiation from a laser beam to substantially remove the metal disulfide species. The method includes exposing the blocked region free and clear from the metal disulfide.
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