CONDUCTOR WITH SUB-LITHOGRAPHIC SELF-ALIGNED 3D CONFINEMENT

A three-dimensionally (3d) confined conductor advantageously used as an electronic fuse and self-aligned methods of forming the same. By non-conformal deposition of a dielectric film over raised structures, a 3d confined tube, which may be sub-lithographic, is formed between the raised structures. E...

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Bibliographic Details
Main Authors LI JUNJUN, SUN PINPING, LI YAN ZUN, PEI CHENGWEN
Format Patent
LanguageEnglish
Published 12.02.2015
Subjects
BASIC ELECTRIC ELEMENTS
ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
SEMICONDUCTOR DEVICES
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Summary:A three-dimensionally (3d) confined conductor advantageously used as an electronic fuse and self-aligned methods of forming the same. By non-conformal deposition of a dielectric film over raised structures, a 3d confined tube, which may be sub-lithographic, is formed between the raised structures. Etching holes which intersect the 3d confined region and subsequent metal deposition fills the 3d confined region and forms contacts. When the raised structures are gates, the fuse element may be located at the middle of the line (i.e. in pre-metal dielectric). Other methods for creating the structure are also described.
Bibliography:Application Number: US201313964654