Invention Grant
- Patent Title: Methods for fabricating an integrated circuit
- Patent Title (中): 制造集成电路的方法
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Application No.: US11616858Application Date: 2006-12-28
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Publication No.: US07622348B2Publication Date: 2009-11-24
- Inventor: James Pan
- Applicant: James Pan
- Applicant Address: US TX Austin
- Assignee: Advanced Micro Devices, Inc.
- Current Assignee: Advanced Micro Devices, Inc.
- Current Assignee Address: US TX Austin
- Agency: Ingrassia Fisher & Lorenz, P.C.
- Main IPC: H01L21/8242
- IPC: H01L21/8242

Abstract:
Methods are provided for reducing the aspect ratio of contacts to bit lines in fabricating an IC including logic and memory. The method includes the steps of forming a first group of device regions to be contacted by a first level of metal and a second group of memory bit lines to be contacted by a second level of metal, the first level separated from the second level by at least one layer of dielectric material. Conductive material is plated by electroless plating on the device regions and bit lines and first and second conductive plugs are formed overlying the conductive material. The first conductive plugs are contacted by the first level of metal and the second conductive plugs are contacted by the second level of metal. The thickness of the plated conductive material provides a self aligned process for reducing the aspect ratio of the conductive plugs.
Public/Granted literature
- US20080160688A1 METHODS FOR FABRICATING AN INTEGRATED CIRCUIT Public/Granted day:2008-07-03
Information query
IPC分类: