公开(公告)号：US20130170332A1

公开(公告)日：2013-07-04

申请号：US13777095

申请日：2013-02-26

Applicant: Seagate Technology LLC

Inventor： Kaizhong Gao ,  Yongjun Zhao ,  William A. Challener ,  Xuhui Jin

IPC: G11B13/08

CPC classification number: G11B13/08 ,  G11B5/314 ,  G11B5/6088 ,  G11B2005/0021

Abstract: A magnetic recording head consists of a write pole and a near field transducer close to the write pole that focuses light energy to a focal point. A near field transducer is positioned to receive light energy from a waveguide. The near field transducer comprises an energy-receiving end and an energy-radiating end. The energy-receiving end is located near the focal point of the waveguide and the energy-radiating end is shaped such that it is narrower closer to the write pole and wider farther from the write pole.

Abstract translation: 磁记录头由靠近写入极的写极和近场传感器组成，将光能聚焦到焦点。 定位近场传感器以从波导接收光能。 近场换能器包括能量接收端和能量辐射端。 能量接收端位于波导的焦点附近，并且能量辐射端被成形为使得其更靠近写入极并且比写入极更远。

公开(公告)号：US10311906B2

公开(公告)日：2019-06-04

申请号：US15817511

申请日：2017-11-20

Applicant: SEAGATE TECHNOLOGY LLC

Inventor： Martin Blaber ,  Jie Gong ,  Dimitar Dimitrov ,  Steven Riemer ,  Michael Kautzky ,  Tong Zhao ,  Yongjun Zhao

IPC: G11B5/09 ,  G11B5/60 ,  G11B5/31 ,  G11B5/00

Abstract: Devices having an air bearing surfaces (ABS), the devices including a near field transducer (NFT) that includes a disc having a front edge; a peg, the peg having a front surface at the air bearing surface of the apparatus, an opposing back surface, a top surface that extends from the front surface to the back surface, two side surfaces that expend from the front surface to the back surface and a bottom surface that extends from the front surface to the back surface; and a barrier layer, the barrier layer separating at least the back surface of the peg from the disc and the barrier layer having a thickness from 10 nm to 50 nm.

公开(公告)号：US20170194022A1

公开(公告)日：2017-07-06

申请号：US14987058

申请日：2016-01-04

Applicant: Seagate Technology LLC

Inventor： Anusha Natarajarathinam ,  Yongjun Zhao ,  Hui Brickner ,  Dongsung Hong

IPC: G11B5/127

CPC classification number: G11B5/1272 ,  G11B5/105 ,  G11B5/3136 ,  G11B5/3163 ,  G11B5/40 ,  G11B2005/0021

Abstract: A method involves depositing a near-field transducer on a substrate of a slider. The near-field transducer comprises a plate-like enlarged portion and a peg portion. A first hard stop extending from the near field transducer and an air bearing surface is formed. A heat sink is formed on the enlarged portion and the first hard stop. A dielectric material is deposited over the near-field transducer and the heat sink. A second hard stop is deposited on the dielectric material away from the air bearing surface. The second hard stop comprises a recess corresponding in size and location to the heat sink. The method involves milling at an oblique angle to the substrate between the first hard stop and second hard stop to cut through the heat sink at the angle. The recess of the second hard stop increases a milling rate over the heat sink compared to a second milling rate of the dielectric away from the heat sink.

公开(公告)号：US09558764B2

公开(公告)日：2017-01-31

申请号：US14886240

申请日：2015-10-19

Applicant: Seagate Technology LLC

Inventor： Ruoxi Yang ,  Pierre Asselin ,  Yongjun Zhao ,  James Gary Wessel ,  Tae-Woo Lee ,  Werner Scholz ,  Frank Edgar Stageberg

IPC: G11B11/00 ,  G11B5/187 ,  G11B5/60 ,  G02B6/122 ,  G11B5/31 ,  G11B5/00 ,  G11B11/105

CPC classification number: G11B5/1871 ,  G02B6/122 ,  G02B6/1228 ,  G11B5/314 ,  G11B5/6088 ,  G11B11/10532 ,  G11B11/10543 ,  G11B11/10554 ,  G11B2005/0021

Abstract: A write head includes a near-field transducer near a media-facing surface of the write head. The write head includes a waveguide having a core with a first side disposed proximate to the near-field transducer. The core overlaps the near-field transducer at a substrate-parallel plane. The core includes one of a step or a taper on a second side facing away from the first side. The step or the taper causes a reduced thickness of the core normal to the substrate-parallel plane. The write head includes a cladding layer that encompassing the second side of the core and that fills in the step or the taper.

Abstract translation: 写头包括靠近写入头的面向媒体的表面附近的近场换能器。 写头包括具有芯的波导，第一侧靠近近场换能器设置。 核心在基板平行平面处与近场换能器重叠。 芯部包括在远离第一侧的第二侧上的台阶或锥形中的一个。 台阶或锥形导致芯垂直于基板平行平面的芯的厚度减小。 写头包括包围芯的第二侧并且填充在台阶或锥形中的包覆层。

公开(公告)号：US09437221B2

公开(公告)日：2016-09-06

申请号：US14840600

申请日：2015-08-31

Applicant: Seagate Technology LLC

Inventor： Lien Lee ,  Yongjun Zhao ,  Lijuan Zou ,  Mark Henry Ostrowski

IPC: G11B5/31 ,  G11B5/60 ,  G11B5/00

CPC classification number: G11B5/314 ,  G11B5/3163 ,  G11B5/6088 ,  G11B2005/0021 ,  Y10T29/49048 ,  Y10T29/49052

Abstract: A method of making a transducer head disclosed herein includes depositing a spacer layer on an NFT layer of the transducer head, forming an etch stop layer on a spacer layer of a transducer, depositing a cladding layer on the etch stop layer, and milling the cladding layer at a sloped angle such that the milling stops at the etch stop layer.

公开(公告)号：US09070386B2

公开(公告)日：2015-06-30

申请号：US13872447

申请日：2013-04-29

Applicant: Seagate Technology LLC

Inventor： Chubing Peng ,  Yongjun Zhao

IPC: G02B6/00 ,  G11B5/31 ,  G02B6/27

CPC classification number: G11B5/4866 ,  G02B6/126 ,  G02B6/2726 ,  G02B6/274 ,  G11B5/314 ,  G11B2005/0021

Abstract: A polarization rotator comprises a first waveguide configured to be coupled to an input coupler at a first end and a second waveguide, wherein the first waveguide is offset from the second waveguide and a second end of the first waveguide is coupled to a second end of the second waveguide.

Abstract translation: 偏振旋转器包括被配置为在第一端耦合到输入耦合器的第一波导和第二波导，其中第一波导偏离第二波导，并且第一波导的第二端耦合到第二波导的第二端 第二波导。

公开(公告)号：US20150179209A1

公开(公告)日：2015-06-25

申请号：US14624079

申请日：2015-02-17

Applicant: Seagate Technology LLC

Inventor： Chubing Peng ,  Yongjun Zhao

IPC: G11B7/22

CPC classification number: G11B7/22 ,  G02B6/262 ,  G02B6/2817 ,  G02B6/4206 ,  G02B6/4214 ,  G02B6/4298 ,  G11B5/314 ,  G11B5/6088 ,  G11B7/1387 ,  G11B2005/0021

Abstract: A plasmonic transducer includes at least two metal elements with a gap therebetween. The metal elements are elongated along a plasmon-enhanced, near-field radiation delivery axis. Cross sections of the metal elements in a plane normal to the delivery axis vary in shape along the delivery axis. A waveguide is disposed along an elongated side of the plasmonic transducer. The waveguide is optically coupled to the plasmonic transducer along the elongated side.

Abstract translation: 等离子体激元换能器包括至少两个在它们之间具有间隙的金属元件。 金属元素沿着等离子体增强的近场辐射传输轴线是细长的。 垂直于输送轴的平面中的金属元件的横截面沿着输送轴线的形状不同。 沿着等离子体激元传感器的细长侧布置波导。 波导沿着细长侧光耦合到等离子体激元传感器。

公开(公告)号：US20150003218A1

公开(公告)日：2015-01-01

申请号：US13931049

申请日：2013-06-28

Applicant: Seagate Technology LLC

Inventor： Chubing Peng ,  Yongjun Zhao

IPC: G11B5/48 ,  G11B13/04

CPC classification number: G11B5/4866 ,  G11B5/314 ,  G11B5/6088 ,  G11B13/04 ,  G11B2005/0021

Abstract: A near-field transducer includes an enlarged transducer portion of plasmonic material extending from an input end to an output end, a surface of the transducer portion including a trench running between two raised portions of the plasmonic material, the trench extending at least partially from the input end to the output end. A peg of the plasmonic material is disposed on the output end of the transducer portion and extends from the output end toward the air bearing surface of a heat assisted magnetic recording slider.

Abstract translation: 近场换能器包括从输入端延伸到输出端的等离激元材料的扩大的换能器部分，换能器部分的表面包括在等离子体激元材料的两个凸起部分之间延伸的沟槽，沟槽至少部分地从 输入端到输出端。 等离子体元素材料的钉子设置在换能器部分的输出端上，并从热辅助磁记录滑块的输出端向空气支承表面延伸。

公开(公告)号：US08891205B2

公开(公告)日：2014-11-18

申请号：US13864201

申请日：2013-04-16

Applicant: Seagate Technology LLC

Inventor： Hua Zhou ,  Yongjun Zhao ,  Chris Rea ,  Werner Scholz ,  James G. Wessel

IPC: G11B5/60

CPC classification number: G11B5/6082 ,  G11B5/1272 ,  G11B5/187 ,  G11B5/31 ,  G11B5/3116 ,  G11B5/3136 ,  G11B5/314 ,  G11B5/4866 ,  G11B5/84 ,  G11B13/08 ,  G11B2005/0021

Abstract: An apparatus is provided that includes a waveguide adjacent an air bearing surface, a near-field transducer comprising a peg having a side orthogonal to the air bearing surface and a write pole adjacent to the waveguide. The write pole includes a first portion extending towards the air bearing surface at a non-orthogonal angle with respect to the air bearing surface, and a second portion in contact with the first portion comprising a side that extends towards and orthogonally contacts the air bearing surface. The second portion or the write pole defines a gap between the side of the peg orthogonal to the air bearing surface and the side of the second portion of the write pole that extends towards and orthogonally contacts the air bearing surface. A method of making a magnetic recording head that includes the provided apparatus is also disclosed.

Abstract translation: 提供了一种装置，其包括邻近空气轴承表面的波导，近场换能器，其包括具有与空气轴承表面正交的一侧的螺栓和与波导相邻的写入极。 写柱包括相对于空气轴承表面以非正交角度朝向空气轴承表面延伸的第一部分，以及与第一部分接触的第二部分，包括朝向并垂直于空气承载表面接触的侧面 。 第二部分或写入磁极限定了垂直于空气轴承表面的销的侧面与朝向和垂直接触空气轴承表面的写入磁极的第二部分的侧面之间的间隙。 还公开了一种制造包括所提供的装置的磁记录头的方法。

公开(公告)号：US08873348B2

公开(公告)日：2014-10-28

申请号：US14097482

申请日：2013-12-05

Applicant: Seagate Technology LLC

Inventor： Roger L. Hipwell ,  Yongjun Zhao ,  Mark Ostrowski ,  Andrew D. Habermas

IPC: G11B11/00 ,  G11B5/31 ,  G11B5/105 ,  G11B5/127 ,  G11B5/00

CPC classification number: G11B5/127 ,  G11B5/105 ,  G11B5/314 ,  G11B2005/0021

Abstract: A write head includes a cavity configured to couple a laser diode to the write head. A bottom of the cavity includes a heat conductive element configured to contact the laser diode, a plurality of thermal studs disposed below the heat conductive element, and a substrate disposed below the thermal studs. The heat conductive element, thermal studs, and substrate are thermally coupled to draw heat from the laser diode.

Abstract translation: 写头包括被配置为将激光二极管耦合到写入头的腔。 空腔的底部包括被配置为接触激光二极管的导热元件，设置在导热元件下方的多个热钉，以及设置在热钉之下的基底。 导热元件，热螺柱和基板被热耦合以从激光二极管吸取热量。