Invention Application
- Patent Title: PROGRAMMABLE ANTI-FUSE STRUCTURES WITH CONDUCTIVE MATERIAL ISLANDS
- Patent Title (中): 具有导电材料岛的可编程防结构
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Application No.: US12761780Application Date: 2010-04-16
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Publication No.: US20110254121A1Publication Date: 2011-10-20
- Inventor: Kangguo Cheng , Louis L. Hsu , William R. Tonti , Chih-Chao Yang
- Applicant: Kangguo Cheng , Louis L. Hsu , William R. Tonti , Chih-Chao Yang
- Applicant Address: US NY Armonk
- Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
- Current Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
- Current Assignee Address: US NY Armonk
- Main IPC: H01L23/525
- IPC: H01L23/525 ; H01L21/768 ; G06F17/50

Abstract:
Voltage programmable anti-fuse structures and methods are provided that include at least one conductive material island atop a dielectric surface that is located between two adjacent conductive features. In one embodiment, the anti-fuse structure includes a dielectric material having at least two adjacent conductive features embedded therein. At least one conductive material island is located on an upper surface of the dielectric material that is located between the at least two adjacent conductive features. A dielectric capping layer is located on exposed surfaces of the dielectric material, the at least one conductive material island and the at least two adjacent conductive features. When the anti-fuse structure is in a programmed state, a dielectric breakdown path is present in the dielectric material that is located beneath the at least one conductive material island which conducts electrical current to electrically couple the two adjacent conductive features.
Public/Granted literature
- US08471356B2 Programmable anti-fuse structures with conductive material islands Public/Granted day:2013-06-25
Information query
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