公开(公告)号：US08670271B2

公开(公告)日：2014-03-11

申请号：US13857410

申请日：2013-04-05

Applicant: Seagate Technology LLC

Inventor： Yuankai Zheng ,  Zheng Gao ,  Wonjoon Jung ,  Xuebing Feng ,  Xiaohua Lou ,  Haiwen Xi

IPC: G11C11/15

CPC classification number: H01L43/02 ,  B82Y10/00 ,  B82Y25/00 ,  G11C11/161 ,  H01F10/3254 ,  H01F10/3263 ,  H01F10/3286 ,  H01F10/329 ,  H01F10/3295 ,  H01L43/08

Abstract: A magnetic tunnel junction having a ferromagnetic free layer and a ferromagnetic pinned reference layer, each having an out-of-plane magnetic anisotropy and an out-of-plane magnetization orientation, the ferromagnetic free layer switchable by spin torque. The magnetic tunnel junction includes a ferromagnetic assist layer proximate the free layer, the assist layer having a low magnetic anisotropy less than 700 Oe and positioned to apply a magnetic field on the free layer.

Abstract translation: 具有铁磁自由层和铁磁性固定参考层的磁性隧道结，每个具有面外磁各向异性和面外磁化取向，所述铁磁自由层可通过自旋扭矩切换。 磁性隧道结包括邻近自由层的铁磁性辅助层，辅助层具有小于700Oe的低磁各向异性，并定位成在自由层上施加磁场。

公开(公告)号：US20130200476A1

公开(公告)日：2013-08-08

申请号：US13829137

申请日：2013-03-14

Applicant: SEAGATE TECHNOLOGY LLC

Inventor： Yuankai Zheng ,  Xiaohua Lou ,  Wei Tian ,  Zheng Gao ,  Haiwen Xi

IPC: H01L43/02

CPC classification number: H01L43/02 ,  B82Y40/00 ,  G11C11/161 ,  G11C11/1673 ,  G11C11/1675 ,  H01F10/30 ,  H01F41/307 ,  H01L43/08 ,  H01L43/10 ,  H01L43/12

Abstract: An apparatus and associated method for a non-volatile memory cell with a phonon-blocking insulating layer. In accordance with various embodiments, a magnetic stack has a tunnel junction, ferromagnetic free layer, pinned layer, and an insulating layer that is constructed of an electrically and thermally insulative material that blocks phonons while allowing electrical transmission through at least one conductive feature.

Abstract translation: 一种具有声阻隔绝缘层的非易失性存储单元的装置和相关方法。 根据各种实施例，磁性堆叠具有隧道结，铁磁自由层，被钉扎层和由电绝缘材料和热绝缘材料构成的绝缘层，其阻挡声子同时允许通过至少一个导电特征的电传输。

公开(公告)号：US08860157B2

公开(公告)日：2014-10-14

申请号：US13829137

申请日：2013-03-14

Applicant: Seagate Technology LLC

Inventor： Yuankai Zheng ,  Xiaohua Lou ,  Wei Tian ,  Zheng Gao ,  Haiwen Xi

IPC: H01L43/02 ,  G11C11/16 ,  H01F41/30 ,  H01L43/10 ,  H01L43/08 ,  H01L43/12 ,  H01F10/30

CPC classification number: H01L43/02 ,  B82Y40/00 ,  G11C11/161 ,  G11C11/1673 ,  G11C11/1675 ,  H01F10/30 ,  H01F41/307 ,  H01L43/08 ,  H01L43/10 ,  H01L43/12

Abstract: An apparatus and associated method for a non-volatile memory cell with a phonon-blocking insulating layer. In accordance with various embodiments, a magnetic stack has a tunnel junction, ferromagnetic free layer, pinned layer, and an insulating layer that is constructed of an electrically and thermally insulative material that blocks phonons while allowing electrical transmission through at least one conductive feature.

Abstract translation: 一种具有声阻隔绝缘层的非易失性存储单元的装置和相关方法。 根据各种实施例，磁性堆叠具有隧道结，铁磁自由层，被钉扎层和由电绝缘材料和热绝缘材料构成的绝缘层，其阻挡声子同时允许通过至少一个导电特征的电传输。

公开(公告)号：US08750036B2

公开(公告)日：2014-06-10

申请号：US14017392

申请日：2013-09-04

Applicant: Seagate Technology LLC

Inventor： Xiaohua Lou ,  Haiwen Xi

IPC: G11C11/14

CPC classification number: G11C11/161 ,  G11C11/1659 ,  G11C11/1675 ,  G11C11/1693 ,  Y10S977/933 ,  Y10S977/935

Abstract: A memory unit includes a magnetic tunnel junction data cell electrically coupled to a bit line and a word line. The magnetic tunnel junction data cell is configured to switch between a high resistance state and a low resistance state by passing a unipolar voltage across the magnetic tunnel junction data cell. A diode is electrically coupled between the magnetic tunnel junction data cell and the word line or bit line. A voltage source provides the unipolar voltage across the magnetic tunnel junction data cell that writes the high resistance state and the low resistance state.

Abstract translation: 存储单元包括电耦合到位线和字线的磁性隧道结数据单元。 磁隧道结数据单元被配置为通过使单极电压跨过磁隧道结数据单元而在高电阻状态和低电阻状态之间切换。 二极管电耦合在磁性隧道结数据单元和字线或位线之间。 电压源提供写入高电阻状态和低电阻状态的磁性隧道结数据单元两端的单极电压。

公开(公告)号：US20140003138A1

公开(公告)日：2014-01-02

申请号：US14017392

申请日：2013-09-04

Applicant: SEAGATE TECHNOLOGY LLC

Inventor： Xiaohua Lou ,  Haiwen Xi

IPC: G11C11/16

CPC classification number: G11C11/161 ,  G11C11/1659 ,  G11C11/1675 ,  G11C11/1693 ,  Y10S977/933 ,  Y10S977/935

Abstract: A memory unit includes a magnetic tunnel junction data cell electrically coupled to a bit line and a word line. The magnetic tunnel junction data cell is configured to switch between a high resistance state and a low resistance state by passing a unipolar voltage across the magnetic tunnel junction data cell. A diode is electrically coupled between the magnetic tunnel junction data cell and the word line or bit line. A voltage source provides the unipolar voltage across the magnetic tunnel junction data cell that writes the high resistance state and the low resistance state.

Abstract translation: 存储单元包括电耦合到位线和字线的磁性隧道结数据单元。 磁隧道结数据单元被配置为通过使单极电压跨过磁隧道结数据单元而在高电阻状态和低电阻状态之间切换。 二极管电耦合在磁性隧道结数据单元和字线或位线之间。 电压源提供写入高电阻状态和低电阻状态的磁性隧道结数据单元两端的单极电压。