Invention Grant
- Patent Title: Interconnect structure with enhanced reliability
- Patent Title (中): 互连结构,增强可靠性
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Application No.: US12915510Application Date: 2010-10-29
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Publication No.: US08912658B2Publication Date: 2014-12-16
- Inventor: Ronald Filippi , Ping-Chuan Wang , Griselda Bonilla , Kaushik Chanda , Robert D. Edwards , Andrew H. Simon
- Applicant: Ronald Filippi , Ping-Chuan Wang , Griselda Bonilla , Kaushik Chanda , Robert D. Edwards , Andrew H. Simon
- Applicant Address: US NY Armonk
- Assignee: International Business Machines Corporation
- Current Assignee: International Business Machines Corporation
- Current Assignee Address: US NY Armonk
- Agent Steven Kellner; Catherine Ikers
- Main IPC: H01L23/48
- IPC: H01L23/48 ; H01L23/52 ; H01L29/40 ; H01L23/532 ; H01L21/768

Abstract:
An improved interconnect structure including a dielectric layer having a conductive feature embedded therein, the conductive feature having a first top surface that is substantially coplanar with a second top surface of the dielectric layer; a metal cap layer located directly on the first top surface, wherein the metal cap layer does not substantially extend onto the second top surface; a first dielectric cap layer located directly on the second top surface, wherein the first dielectric cap layer does not substantially extend onto the first top surface and the first dielectric cap layer is thicker than the metal cap layer; and a second dielectric cap layer on the metal cap layer and the first dielectric cap layer. A method of forming the interconnect structure is also provided.
Public/Granted literature
- US20120104610A1 INTERCONNECT STRUCTURE WITH ENHANCED RELIABILITY Public/Granted day:2012-05-03
Information query
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