Invention Grant
- Patent Title: Method for electroless depositing a material on a surface of a wafer
- Patent Title (中): 在晶片的表面上无电沉积材料的方法
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Application No.: US12044537Application Date: 2008-03-07
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Publication No.: US07875554B2Publication Date: 2011-01-25
- Inventor: Yezdi Dordi , John Boyd , William Thie , Bob Maraschin , Fred C. Redeker , Joel M. Cook
- Applicant: Yezdi Dordi , John Boyd , William Thie , Bob Maraschin , Fred C. Redeker , Joel M. Cook
- Applicant Address: US CA Fremont
- Assignee: Lam Research Corporation
- Current Assignee: Lam Research Corporation
- Current Assignee Address: US CA Fremont
- Agency: Martine Penilla & Gencarella, LLP
- Main IPC: H01L21/44
- IPC: H01L21/44

Abstract:
Broadly speaking, a method and an apparatus are provided for depositing a material on a semiconductor wafer (“wafer”). More specifically, the method and apparatus provide for selective heating of a surface of the wafer exposed to an electroless plating solution. The selective heating is provided by applying radiant energy to the wafer surface. The selective heating of the wafer surface causes a temperature increase at an interface between the wafer surface and the electroless plating solution. The temperature increase at the interface in turn causes a plating reaction to occur at the wafer surface. Thus, material is deposited on the wafer surface through an electroless plating reaction that is initiated and controlled by varying the temperature of the wafer surface using an appropriately defined radiant energy source.
Public/Granted literature
- US20080153291A1 Method and Apparatus for Material Deposition Public/Granted day:2008-06-26
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