Invention Application
- Patent Title: LINEAR MRAM DEVICE WITH A SELF-ALIGNED BOTTOM CONTACT
- Patent Title (中): 具有自对准底线接头的线性MRAM器件
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Application No.: US14949267Application Date: 2015-11-23
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Publication No.: US20170005260A1Publication Date: 2017-01-05
- Inventor: Anthony J. Annunziata , Michael C. Gaidis , Rohit Kilaru
- Applicant: International Business Machines Corporation
- Main IPC: H01L43/02
- IPC: H01L43/02 ; H01L43/08 ; H01L43/12 ; H01L27/22

Abstract:
A technique relates to a linear magnetoresistive random access memory (MRAM) device. A linear magnetic tunnel junction structure includes a non-magnetic tunnel barrier on top of a free layer and a reference layer on top of the non-magnetic tunnel barrier, where the linear magnetic tunnel junction structure is in a line. Bottom contacts are separated from one another by a column space while the plurality of bottom contacts are self-aligned to the linear magnetic tunnel junction structure, such that the plurality of bottom contacts are in the line with and underneath the linear magnetic tunnel junction structure. The bottom contacts abut a bottom of the linear magnetic tunnel junction structure. MRAM devices are formed by having non-conducting parts of the free layer isolating individual interfaces between the bottom contacts and the free layer. The MRAM devices are formed in the line of the linear magnetic tunnel junction structure.
Public/Granted literature
- US09553257B1 Linear MRAM device with a self-aligned bottom contact Public/Granted day:2017-01-24
Information query
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