Invention Grant
- Patent Title: Processing method for cleaning sulfur entities of contact regions
- Patent Title (中): 清理接触区硫体的加工方法
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Application No.: US12476174Application Date: 2009-06-01
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Publication No.: US08642138B2Publication Date: 2014-02-04
- Inventor: Howard W. H. Lee
- Applicant: Howard W. H. Lee
- Applicant Address: US CA San Jose
- Assignee: Stion Corporation
- Current Assignee: Stion Corporation
- Current Assignee Address: US CA San Jose
- Agency: Kilpatrick Townsend & Stockton LLP
- Main IPC: B05D3/00
- IPC: B05D3/00 ; B05D5/12

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.
Public/Granted literature
- US20110020564A1 PROCESSING METHOD FOR CLEANING SULFUR ENTITIES OF CONTACT REGIONS Public/Granted day:2011-01-27
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