Invention Application
- Patent Title: METHOD OF FORMING A DUAL DAMASCENE STRUCTURE
- Patent Title (中): 形成双重大气结构的方法
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Application No.: US11748574Application Date: 2007-05-15
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Publication No.: US20070212877A1Publication Date: 2007-09-13
- Inventor: Bang-Chein Ho , Jian-Hong Chen , D.J. Ou-Yang
- Applicant: Bang-Chein Ho , Jian-Hong Chen , D.J. Ou-Yang
- Applicant Address: TW Hsin-Chu
- Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.
- Current Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.
- Current Assignee Address: TW Hsin-Chu
- Main IPC: H01L21/4763
- IPC: H01L21/4763

Abstract:
An improved method of forming an integrated circuit that includes a dual damascene interconnect is described. A contact via hole is formed in a dielectric layer disposed above a semiconductor substrate. A protective layer is disposed on top of the dielectric layer and in the contact via hole, and subsequently forming as a recessed plug in the via, followed by etching to form a trench to complete formation of a dual damascene opening.
Public/Granted literature
- US07749904B2 Method of forming a dual damascene structure Public/Granted day:2010-07-06
Information query
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