- 专利标题: Magnetic shielding for MTJ device or bit
-
申请号: US15162594申请日: 2016-05-23
-
公开(公告)号: US10096768B2公开(公告)日: 2018-10-09
- 发明人: Yi Jiang , Bharat Bhushan , Wanbing Yi , Juan Boon Tan , Pak-Chum Danny Shum
- 申请人: GLOBALFOUNDRIES Singapore Pte. Ltd.
- 申请人地址: SG Singapore
- 专利权人: GLOBALFOUNDRIES SINGAPORE PTE. LTD.
- 当前专利权人: GLOBALFOUNDRIES SINGAPORE PTE. LTD.
- 当前专利权人地址: SG Singapore
- 代理机构: Horizon IP PTE LTD.
- 主分类号: H01L43/02
- IPC分类号: H01L43/02 ; H01L43/12 ; H01L43/08 ; G11C11/56
摘要:
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.
公开/授权文献
- US20160351792A1 MAGNETIC SHIELDING FOR MTJ DEVICE OR BIT 公开/授权日:2016-12-01
信息查询
IPC分类: