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81.发明授权公开(公告)号：US10283151B1
公开(公告)日：2019-05-07
申请号：US15933721
申请日：2018-03-23
Applicant: Seagate Technology LLC
Inventor： James Gary Wessel , Scott Eugene Olson
Abstract: An apparatus comprises a first electrical contact, a second electrical contact, and a semiconductor device disposed between the first and second electrical contacts. The semiconductor device comprises a laser diode and a temperature control unit. The laser diode comprises p-type semiconductor material and n-type semiconductor material. The temperature control unit comprises p-type semiconductor material, n-type semiconductor material, and a resistor coupled to the laser diode. One of the p-type semiconductor material and the n-type semiconductor material is shared by the laser diode and the temperature control unit.
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公开(公告)号：US10127940B1
公开(公告)日：2018-11-13
申请号：US15342339
申请日：2016-11-03
Applicant: Seagate Technology LLC
Inventor： James Gary Wessel , Jon Karsten Klarqvist , John Charles Duda
Abstract: A slider configured for heat-assisted magnetic recording comprises an optical sensor coupled to first and second bond pads. The optical sensor comprises a bolometer and a reference sensor. The bolometer is situated at a location of the slider that receives at least some of the light and exposed to an ambient temperature at the slider. The bolometer produces a signal in response to a change in the ambient temperature and the change in output optical power. The reference sensor is situated at a location of the slider unexposed to the light and exposed to the ambient temperature. The reference sensor is coupled to the bolometer and configured to produce a signal in response to the change in the ambient temperature. The optical sensor is configured to generate a sensor signal indicative of changes in output optical power of a laser source without contribution due to ambient temperature changes.
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公开(公告)号：US10074386B1
公开(公告)日：2018-09-11
申请号：US15095888
申请日：2016-04-11
Applicant: Seagate Technology LLC
Inventor： James Gary Wessel , Raul Horacio Andruet
CPC classification number: G11B5/3123 , G11B5/40 , G11B5/6088 , G11B2005/0021
Abstract: A slider is configured to interact with a magnetic recording medium and comprises an air bearing surface (ABS). A writer is provided on the slider and comprises a write pole terminating at or near the ABS, a return pole proximate the write pole, and a write coil arrangement provide around the write pole. The write coil arrangement comprises lower and upper write coils each having a generally circularly-shaped periphery, and a plurality of spaced-apart cooling fins connected to and projecting outwardly from the periphery of each of the lower and upper write coils.
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公开(公告)号：US09947358B1
公开(公告)日：2018-04-17
申请号：US15678427
申请日：2017-08-16
Applicant: Seagate Technology LLC
Inventor： Yuhang Cheng , Scott Franzen , Zoran Jandric , James Gary Wessel , Ning Shi
CPC classification number: G11B5/6088 , G11B5/105 , G11B5/314 , G11B5/4826 , G11B2005/0021
Abstract: An apparatus comprises a slider having a trailing edge and a leading edge. A laser diode unit comprises a submount and a laser diode mounted to the submount. The submount includes a mounting surface affixed to a first surface of the slider at the trailing edge such that a first surface of the submount faces toward the leading edge of the slider. A thermally conductive material covers the first surface of the submount and at least a portion of the first surface of the slider. The thermally conductive material serves as a thermal conduction pathway between the submount and the slider.
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公开(公告)号：US09799361B1
公开(公告)日：2017-10-24
申请号：US15391125
申请日：2016-12-27
Applicant: Seagate Technology LLC
Inventor： John Charles Duda , James Gary Wessel
CPC classification number: G11B5/6076 , G11B5/455 , G11B5/4866 , G11B5/6052 , G11B5/607 , G11B5/6088 , G11B2005/0021
Abstract: An apparatus comprises a slider and an optical waveguide formed in the slider and configured to receive light from a laser source. A near-field transducer (NFT) is formed on the slider at or near an air bearing surface (ABS) of the slider and optically coupled to the waveguide. A bolometric sensor is positioned proximate the NFT and exposed to at least some of the light. The bolometric sensor is configured to detect changes in output optical power of the laser source and contact between the slider and a magnetic recording medium.
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Patent Agency Ranking
公开(公告)号：US09754617B2
公开(公告)日：2017-09-05
申请号：US14626688
申请日：2015-02-23
Applicant: Seagate Technology LLC
Inventor： Yuhang Cheng , Scott Franzen , Zoran Jandric , James Gary Wessel , Ning Shi
CPC classification number: G11B5/6088 , G11B5/105 , G11B5/314 , G11B5/4826 , G11B2005/0021
Abstract: An apparatus comprises a slider having a trailing edge and a leading edge. A laser diode unit comprises a submount and a laser diode mounted to the submount. The submount includes a mounting surface affixed to a first surface of the slider at the trailing edge such that a first surface of the submount faces toward the leading edge of the slider. A thermally conductive material covers the first surface of the submount and at least a portion of the first surface of the slider. The thermally conductive material serves as a thermal conduction pathway between the submount and the slider.
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87.发明授权公开(公告)号：US09691424B2
公开(公告)日：2017-06-27
申请号：US15051053
申请日：2016-02-23
Applicant: Seagate Technology LLC
Inventor： John Charles Duda , Ruoxi Yang , James Gary Wessel
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.
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88.发明授权公开(公告)号：US09536555B1
公开(公告)日：2017-01-03
申请号：US15007772
申请日：2016-01-27
Applicant: Seagate Technology LLC
Inventor： John Charles Duda , James Gary Wessel
CPC classification number: G11B5/6076 , G11B5/455 , G11B5/4866 , G11B5/6052 , G11B5/607 , G11B5/6088 , G11B2005/0021
Abstract: An apparatus comprises a slider and an optical waveguide formed in the slider and configured to receive light from a laser source. A near-field transducer (NFT) is formed on the slider at or near an air bearing surface (ABS) of the slider and optically coupled to the waveguide. A bolometric sensor is positioned proximate the NFT and exposed to at least some of the light. The bolometric sensor is configured to detect changes in output optical power of the laser source and contact between the slider and a magnetic recording medium.
Abstract translation: 一种装置包括滑块和形成在滑块中的光波导，并被配置为接收来自激光源的光。 在滑块上或附近的滑动件的空气轴承表面（ABS）处形成近场换能器（NFT），并且光学耦合到波导。 辐射传感器位于NFT附近并暴露于至少一些光。 测量传感器被配置为检测激光源的输出光功率的变化和滑块与磁记录介质之间的接触。
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89.发明申请公开(公告)号：US20160247528A1
公开(公告)日：2016-08-25
申请号：US14626707
申请日：2015-02-19
Applicant: Seagate Technology LLC
Inventor： Zoran Jandric , Ning Shi , James Gary Wessel , Lars Ahlen , Neil Zuckerman , Tyler Perry
CPC classification number: G11B5/6088 , G11B5/105 , G11B5/314 , G11B5/4866 , G11B2005/0021
Abstract: An apparatus comprises a slider of a magnetic recording head, a submount, and an interface defined between the slider and the submount. A laser diode is connected to the submount. A metal layer is provided at the interface between the slider and the submount. The metal layer connects at least about 30% of the surface area of the submount at the interface to the slider and serves as a thermal conduction pathway between the submount and the slider.
Abstract translation: 一种装置包括磁记录头的滑动器，底座以及限定在滑块和底座之间的界面。 激光二极管连接到底座。 金属层设置在滑块和底座之间的界面处。 金属层将接头处的底座的表面积的至少约30％连接到滑块，并且用作底座和滑块之间的热传导路径。
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公开(公告)号：US20160247527A1
公开(公告)日：2016-08-25
申请号：US14626688
申请日：2015-02-23
Applicant: Seagate Technology LLC
Inventor： Yuhang Cheng , Scott Franzen , Zoran Jandric , James Gary Wessel , Ning Shi
CPC classification number: G11B5/6088 , G11B5/105 , G11B5/314 , G11B5/4826 , G11B2005/0021
Abstract: An apparatus comprises a slider having a trailing edge and a leading edge. A laser diode unit comprises a submount and a laser diode mounted to the submount. The submount includes a mounting surface affixed to a first surface of the slider at the trailing edge such that a first surface of the submount faces toward the leading edge of the slider. A thermally conductive material covers the first surface of the submount and at least a portion of the first surface of the slider. The thermally conductive material serves as a thermal conduction pathway between the submount and the slider.
Abstract translation: 一种装置包括具有后缘和前缘的滑块。 激光二极管单元包括安装到底座的基座和激光二极管。 底座包括在后缘处固定到滑块的第一表面的安装表面，使得底座的第一表面面向滑块的前缘。 导热材料覆盖基座的第一表面和滑块的第一表面的至少一部分。 导热材料用作底座和滑块之间的热传导路径。
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