Invention Grant
- Patent Title: Magnetic shielding for MTJ device or bit
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Application No.: US15162594Application Date: 2016-05-23
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Publication No.: US10096768B2Publication Date: 2018-10-09
- Inventor: Yi Jiang , Bharat Bhushan , Wanbing Yi , Juan Boon Tan , Pak-Chum Danny Shum
- Applicant: GLOBALFOUNDRIES Singapore Pte. Ltd.
- Applicant Address: SG Singapore
- Assignee: GLOBALFOUNDRIES SINGAPORE PTE. LTD.
- Current Assignee: GLOBALFOUNDRIES SINGAPORE PTE. LTD.
- Current Assignee Address: SG Singapore
- Agency: Horizon IP PTE LTD.
- Main IPC: H01L43/02
- IPC: H01L43/02 ; H01L43/12 ; H01L43/08 ; G11C11/56

Abstract:
Emerging memory chips and methods for forming an emerging memory chip are presented. For example, magnetic random access memory (MRAM) chip magnetic shielding at the device-level is disclosed. The MRAM chip includes a magnetic shield structure that is substantially surrounding a magnetic tunnel junction (MTJ) bit or device of a MTJ array. The magnetic shield may be configured in the form of a cylindrical shield structure or magnetic shield spacer that substantially surrounds the MTJ bit or device. The magnetic shield structure in the form of cylindrical shield structure or magnetic shield spacer may include top and/or bottom plate shield. The magnetic shield structure in various forms and configurations protect the MTJ stack from external or local magnetic fields. This magnetic shielding structure is applicable for both in-plane and perpendicular MRAM chips.
Public/Granted literature
- US20160351792A1 MAGNETIC SHIELDING FOR MTJ DEVICE OR BIT Public/Granted day:2016-12-01
Information query
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