公开(公告)号：US20170263282A1

公开(公告)日：2017-09-14

申请号：US15608349

申请日：2017-05-30

Applicant: Seagate Technology LLC

Inventor： John Charles Duda ,  Ruoxi Yang ,  James Gary Wessel

IPC: G11B11/105 ,  G11B5/48 ,  G11B5/60 ,  G11B5/31 ,  G11B11/14 ,  G11B11/06

CPC classification number: G11B11/10547 ,  G11B5/314 ,  G11B5/4866 ,  G11B5/6052 ,  G11B5/607 ,  G11B5/6082 ,  G11B5/6088 ,  G11B11/06 ,  G11B11/10532 ,  G11B11/10543 ,  G11B11/12 ,  G11B11/14 ,  G11B2005/0021

Abstract: An apparatus comprises a slider having an air-bearing surface (ABS), a write pole at or near the ABS, and a reader at or near the ABS and connected to a pair of reader bond pads of the slider. A near-field transducer (NFT) is formed on the slider at or near the ABS, and an optical waveguide is formed in the slider and configured to receive light from a laser source. A sensor is situated proximal of the write pole at a location within the slider that receives at least some of the light communicated along the waveguide. The sensor may be electrically coupled to the reader bond pads in parallel with the reader, and configured to generate a signal indicative of output optical power of the laser source.

公开(公告)号：US09734856B2

公开(公告)日：2017-08-15

申请号：US15199668

申请日：2016-06-30

Applicant: Seagate Technology LLC

Inventor： Paul M. Jones ,  Timothy J. Klemmer ,  Ruoxi Yang ,  Martin Giles Blaber ,  Xiaoding Ma ,  ZhaoHui Z. Fan ,  Michael J. Stirniman ,  Yang Yang ,  XiaoPing Yan ,  Fujian Huang ,  Emil John C. Esmenda ,  Emir R. Kazazic ,  Florin Zavaliche ,  Hongbo Wang ,  Huan H. Tang ,  Kyoumarss Damavandi

IPC: G11B5/82 ,  G11B11/00 ,  G11B5/66 ,  G11B5/72 ,  G11B5/00 ,  G11B5/012

CPC classification number: G11B5/72 ,  G11B5/012 ,  G11B2005/0021

Abstract: Provided herein is an apparatus including a substrate and a magnetic recording layer over the substrate. In addition, a thermochromic layer is over the substrate, wherein the thermochromic layer includes a first optical absorbance at a first temperature and a second optical absorbance at a second temperature.

公开(公告)号：US20160284372A1

公开(公告)日：2016-09-29

申请号：US15051053

申请日：2016-02-23

Applicant: Seagate Technology LLC

Inventor： John Charles Duda ,  Ruoxi Yang ,  James Gary Wessel

IPC: G11B5/60 ,  G11B5/48

CPC classification number: G11B11/10547 ,  G11B5/314 ,  G11B5/4866 ,  G11B5/6052 ,  G11B5/607 ,  G11B5/6082 ,  G11B5/6088 ,  G11B11/06 ,  G11B11/10532 ,  G11B11/10543 ,  G11B11/12 ,  G11B11/14 ,  G11B2005/0021

Abstract: An apparatus comprises a slider having an air-bearing surface (ABS), a write pole at or near the ABS, and a reader at or near the ABS and connected to a pair of reader bond pads of the slider. A near-field transducer (NFT) is formed on the slider at or near the ABS, and an optical waveguide is formed in the slider and configured to receive light from a laser source. A sensor is situated proximal of the write pole at a location within the slider that receives at least some of the light communicated along the waveguide. The sensor may be electrically coupled to the reader bond pads in parallel with the reader, and configured to generate a signal indicative of output optical power of the laser source.

Abstract translation: 一种装置包括具有空气轴承表面（ABS），ABS或ABS附近的写入极的滑块，以及ABS附近或附近的读取器，并连接到滑块的一对读取器接合焊盘。 在ABS的ABS处或附近的滑块上形成近场换能器（NFT），并且在滑块中形成光波导，并配置为接收来自激光源的光。 传感器位于滑动件的位置附近位于写入极的附近，该位置接收沿着波导传播的至少一些光。 传感器可以与读取器并联地耦合到读取器接合焊盘，并且被配置为产生指示激光源的输出光功率的信号。

公开(公告)号：US20160118069A1

公开(公告)日：2016-04-28

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: G11B5/48 ,  G11B5/187

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，其具有靠近近场换能器设置的第一侧的芯。 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：US20150302874A1

公开(公告)日：2015-10-22

申请号：US14691204

申请日：2015-04-20

Applicant: Seagate Technology LLC

Inventor： Pierre Asselin ,  Ruoxi Yang ,  James Gary Wessel

IPC: G11B5/48 ,  G11B5/31

CPC classification number: G11B5/6088 ,  G11B5/314 ,  G11B11/10532 ,  G11B11/10543 ,  G11B2005/0021

Abstract: An apparatus includes a write pole proximate a media-facing surface of a recording head. A near-field transducer is adjacent to the write pole. A waveguide has a core layer extending from an energy source to the media-facing surface. The core layer includes a region of reduced downtrack thickness proximate the near-field transducer. The region of reduced downtrack thickness is defined by a notch facing away from the near-field transducer. A material of the notch has a different index of refraction than an index of refraction of the core layer.

Abstract translation: 一种装置包括靠近记录头的面向媒体的表面的写入磁极。 近场换能器与写柱相邻。 波导具有从能量源延伸到面向介质的表面的芯层。 核心层包括靠近近场换能器的减小的压缩厚度的区域。 减少下行横截面厚度的区域由远离近场传感器的凹口限定。 凹口的材料具有与芯层的折射率不同的折射率。