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1. 发明授权

US08611050B1 Localized heating for flip chip bonding 有权
公开(公告)号：US08611050B1
公开(公告)日：2013-12-17
申请号：US13888840
申请日：2013-05-07
申请人： Western Digital (Fremont), LLC
发明人： Mark D. Moravec , Lei Wang , Wentao Yan
IPC分类号： G11B21/16
CPC分类号： G11B5/4826 , G11B5/314 , G11B5/6088 , G11B2005/0021
摘要： Embodiments of the present invention relate to integral heating elements in solder pads for flip chip bonding. The integral heating elements are used to solder components together without exposing other locations and components in the assembly to potentially damaging temperatures. Embodiments of the invention may be used in manufacture of magnetic heads for EAMR hard disks to bond a laser sub-mount to an air-bearing slider without exposing magnetic head components to high temperatures.

2. 发明授权

US09786301B1 Apparatuses and methods for providing thin shields in a multiple sensor array 有权
公开(公告)号：US09786301B1
公开(公告)日：2017-10-10
申请号：US14557941
申请日：2014-12-02
申请人： Western Digital (Fremont), LLC
发明人： Shaoping Li , Gerardo A. Bertero , Steven C. Rudy , Shihai He , Ming Mao , Haiwen Xi , Srikanth Ganesan , Qunwen Leng , Ge Yi , Rongfu Xiao , Feng Liu , Lei Wang
IPC分类号： G11B5/39 , G11B5/11 , G11B5/60 , G11B5/115
CPC分类号： G11B5/115 , G11B5/112 , G11B5/3912 , G11B5/3951 , G11B5/3974 , G11B5/3977 , G11B5/4886
摘要： Apparatuses and methods for providing thin shields in a multiple sensor array are provided. One such apparatus is a magnetic read transducer including a first read sensor, a second read sensor, and a shield assembly positioned between the first read sensor and the second read sensor at an air bearing surface (ABS) of the magnetic read transducer, the shield assembly including a first shield layer assembly having a first footprint with a first area, and a second shield layer assembly having a second footprint with a second area, where the second area is greater than the first area.

3. 发明授权

US08897102B1 Method and system for measuring light delivery offsets in a heat assisted magnetic recording head 有权
标题翻译：用于测量热辅助磁记录头中的光输送偏移的方法和系统
公开(公告)号：US08897102B1
公开(公告)日：2014-11-25
申请号：US13908968
申请日：2013-06-03
申请人： Western Digital (Fremont), LLC
发明人： Paul Lin , Zhong Shi , Lei Wang
IPC分类号： G11B11/00 , G11B5/48
CPC分类号： G11B5/4826 , G11B5/105 , G11B5/455 , G11B2005/0021
摘要： A heat assisted magnetic recording (HAMR) transducer resides on a slider, has an air-bearing surface (ABS) and has a back side. The HAMR transducer includes a target waveguide, a plurality of assistant cores and a plurality of output devices. The target waveguide has an entrance at the back side and directs energy provided by a laser from the entrance at the back side toward the ABS. The assistant cores have a plurality of assistant core entrances at the back side. The assistant cores direct energy from the assistant core entrances to the output devices. In some aspects, the assistant cores and output devices may be used in aligning the laser and the target waveguide or checking the alignment of the laser and the target waveguide.
摘要翻译：热辅助磁记录（HAMR）传感器位于滑块上，具有空气轴承表面（ABS）并具有背面。 HAMR传感器包括目标波导，多个辅助核心和多个输出设备。目标波导在后侧具有入口，并且将来自后侧入口的激光提供的能量引向ABS。辅助核心在后侧具有多个辅助核心入口。辅助核心将辅助核心入口的能量引导到输出设备。在一些方面，可以使用辅助核心和输出设备来对准激光器和目标波导或检查激光器和目标波导管的对准。

4. 发明授权

US09672847B2 Micrometer scale components 有权
公开(公告)号：US09672847B2
公开(公告)日：2017-06-06
申请号：US14853531
申请日：2015-09-14
申请人： Western Digital (Fremont), LLC
发明人： Zongrong Liu , Lei Wang
IPC分类号： G11B3/00 , G11B5/31 , B22D23/06 , G11B5/48 , B23K1/00 , B23K31/02 , G11B5/00
CPC分类号： G11B5/314 , B22D23/06 , B23K1/0006 , B23K31/02 , G11B5/4866 , G11B2005/0021
摘要： Micrometer scale components comprise a component body comprising an alloy of a first solder metal and a second solder metal, the alloy having a higher liquidus temperature than the second solder metal; and a base region of the structure body wetted to a substrate, wherein the component body has a molded surface profile.

5. 发明申请

US20160176706A1 SYSTEMS AND METHODS FOR FORMING MEMS ASSEMBLIES INCORPORATING GETTERS 审中-公开
公开(公告)号：US20160176706A1
公开(公告)日：2016-06-23
申请号：US14943300
申请日：2015-11-17
申请人： Western Digital (Fremont), LLC
发明人： Pezhman Monadgemi , Lei Wang
IPC分类号： B81C1/00
CPC分类号： B81C1/00277 , B81B7/0006 , B81B7/0038 , B81B7/007 , B81B2201/0235 , B81B2207/07 , B81B2207/095 , B81C1/00285 , B81C2203/0109 , B81C2203/0118 , B81C2203/0136 , B81C2203/0163
摘要： Systems and methods for forming MEMS assemblies incorporating getters are described. One such method for forming and bonding to a microelectromechanical systems (MEMS) assembly includes providing a first MEMS wafer including a metal layer on an inner surface and one or more cavities for forming a MEMS component, attaching a MEMS capping wafer, having at least one through hole via, to the inner surface of the first MEMS wafer thereby forming at least one encapsulated MEMs component within the first MEMS wafer, and bonding a wire to the metal layer through an open end of the at least one through hole via.

6. 发明授权

US09245543B1 Method for providing an energy assisted magnetic recording head having a laser integrally mounted to the slider 有权
标题翻译：一种用于提供能量辅助磁记录头的方法，所述能量辅助磁记录头具有一体地安装在滑
公开(公告)号：US09245543B1
公开(公告)日：2016-01-26
申请号：US13861663
申请日：2013-04-12
申请人： Western Digital (Fremont), LLC
发明人： Lei Wang , Shing Lee , Wentao Yan
IPC分类号： G11B5/127 , H04R31/00 , G11B5/02 , G11B5/31 , G11B5/60
CPC分类号： G11B5/127 , G11B5/02 , G11B5/105 , G11B5/314 , G11B5/6088 , G11B2005/0021
摘要： A method for providing energy assisted magnetic recording (EAMR) heads are described. The method and system include providing a substrate, at least one EAMR transducer, an overcoat layer and at least one laser. The substrate has a leading edge and a substrate trailing edge. The EAMR transducer(s) reside in a device layer and on the substrate trailing edge. The overcoat layer includes a plurality of contacts. The device layer is between the overcoat layer and the substrate trailing edge. The laser(s) provide energy to the EAMR transducer. The overcoat layer is between the substrate trailing edge and the laser(s). The laser(s) are electrically coupled to at least a first portion of the contacts. The contacts provide thermal connection through the overcoat layer and through the device layer to the substrate. At least a second portion of the contacts is electrically insulated from the substrate.
摘要翻译：描述了一种用于提供能量辅助磁记录（EAMR）头的方法。该方法和系统包括提供衬底，至少一个EAMR换能器，外涂层和至少一个激光器。衬底具有前缘和衬底后缘。 EAMR传感器位于器件层和衬底后缘。外涂层包括多个触点。器件层位于覆盖层和衬底后缘之间。激光器向EAMR传感器提供能量。外涂层位于基板后缘和激光之间。激光器电耦合到触点的至少第一部分。触点提供通过外涂层和穿过器件层到基底的热连接。触点的至少第二部分与基板电绝缘。

7. 发明授权

US08877358B1 Method and system for providing a laser cavity for an energy assisted magnetic recording head 有权
标题翻译：为能量辅助磁记录头提供激光腔的方法和系统
公开(公告)号：US08877358B1
公开(公告)日：2014-11-04
申请号：US13941474
申请日：2013-07-13
申请人： Western Digital (Fremont), LLC
发明人： Lei Wang , Pezhman Monadgemi
IPC分类号： H01L43/12
CPC分类号： H01L43/12 , G11B5/102 , G11B5/105 , G11B5/3163 , G11B2005/0021
摘要： A method for providing a capping layer configured for an energy assisted magnetic recording (EAMR) head including at least one slider. The method comprises etching a substrate having a top surface using an etch to form a trench in the substrate, the trench having a first surface at a first angle from the top surface and a second surface having a second angle from the top surface. The method further comprises providing a protective coating exposing the second surface and covering the first surface, removing a portion of the substrate including the second surface to form a laser cavity within the substrate configured to fit a laser therein, and providing a reflective layer on the first surface to form a mirror, the cavity and mirror being configured for alignment of the laser to the laser cavity and to the mirror and for bonding the laser to the laser cavity.
摘要翻译：一种用于提供覆盖层的方法，所述覆盖层被配置用于包括至少一个滑块的能量辅助磁记录（EAMR）头。该方法包括使用蚀刻蚀刻具有顶表面的衬底以在衬底中形成沟槽，沟槽具有与顶表面成第一角度的第一表面和从顶表面起第二角度的第二表面。该方法还包括提供暴露第二表面并覆盖第一表面的保护涂层，去除包括第二表面的基板的一部分，以在衬底内形成激光腔，该激光腔被配置为在其中配合激光，并在该基底上提供反射层第一表面以形成反射镜，所述空腔和反射镜被构造成用于将激光器对准激光腔和反射镜并将激光器结合到激光腔。

8. 发明授权

US09475151B1 Method and apparatus for attaching a laser diode and a slider in an energy assisted magnetic recording head 有权
标题翻译：用于在能量辅助磁记录头中附接激光二极管和滑块的方法和装置
公开(公告)号：US09475151B1
公开(公告)日：2016-10-25
申请号：US13664271
申请日：2012-10-30
申请人： Western Digital (Fremont), LLC
发明人： Lei Wang , Jih-Chiou Hser
IPC分类号： B23K26/00 , B23K26/18 , B23K26/06 , B23K1/005
CPC分类号： B23K26/356 , B23K1/005 , B23K1/0056 , B23K26/18 , G11B5/105 , G11B2005/0021
摘要： A method and apparatus attach a laser diode on a submount to a slider. The submount and laser diode form a submount assembly. The slider includes an air-bearing surface (ABS) and a transducer. The apparatus includes an optical fiber and a holder. The optical fiber is configured to carry a laser pulse. The holder includes a vacuum channel and an optical fiber aperture therein. A portion of the optical fiber is held in the optical fiber aperture. The vacuum channel is configured to hold the submount assembly by a pressure differential between a pressure developed in the vacuum channel and an external pressure at a remaining portion of the submount assembly. The pressure in the vacuum channel is less than the external pressure. The method holds the submount assembly in the apparatus, aligns the submount assembly to the slider and provides a laser pulse through the fiber.
摘要翻译：一种方法和装置将激光二极管连接到底座到滑块。底座和激光二极管形成底座组件。滑块包括空气轴承表面（ABS）和换能器。该装置包括光纤和保持器。光纤被配置为携带激光脉冲。保持器包括真空通道和其中的光纤孔。光纤的一部分被保持在光纤孔中。真空通道构造成通过在真空通道中产生的压力与底座组件的剩余部分处的外部压力之间的压力差来保持副安装座组件。真空通道中的压力小于外部压力。该方法将底座组件保持在设备中，将底座组件对准滑块，并通过光纤提供激光脉冲。

9. 发明授权

US08860216B1 Method and system for providing a laser submount for an energy assisted magnetic recording head 有权
标题翻译：提供用于能量辅助磁记录头的激光基座的方法和系统
公开(公告)号：US08860216B1
公开(公告)日：2014-10-14
申请号：US13952932
申请日：2013-07-29
申请人： Western Digital (Fremont), LLC
发明人： Lei Wang , Zongrong Liu , Pezhman Monadgemi
IPC分类号： H01L23/48 , H01L23/52 , G11B11/00 , H01L23/498 , G11B7/12
CPC分类号： H01L23/49811 , B23K26/364 , B23K26/40 , B23K2103/50 , G11B5/314 , G11B7/12 , G11B2005/0021 , H01L2924/0002 , H01L2924/00
摘要： A method and system for providing a laser diode submount for use in an energy assisted magnetic recording disk drive are described. A portion of a silicon substrate is removed, forming trenches therein. Each trench has sidewalls, surrounds a silicon island corresponding to a laser diode submount, and corresponds to a thickness of the laser diode submount. The silicon island has a top surface and a facets corresponding to the trench sidewalls. Insulator(s) for the top surface and facets of the silicon island are provided. Metallization is provided on the top surface and facets of the silicon island. A first portion of the metallization on the top surface corresponds to under bump metal (UBM) for solder pad(s). A second portion of the metallization corresponds to electrical traces. Solder pad(s) are provided on the UBM. The silicon island is released from the silicon substrate.
摘要翻译：描述了一种用于提供用于能量辅助磁记录盘驱动器中的激光二极管基座的方法和系统。去除一部分硅衬底，在其中形成沟槽。每个沟槽具有侧壁，围绕与激光二极管基座相对应的硅岛，并且对应于激光二极管基座的厚度。硅岛具有顶表面和对应于沟槽侧壁的面。提供了用于硅岛顶表面和小平面的绝缘体。在硅岛的顶表面和小平面上提供金属化。顶表面上的金属化的第一部分对应于用于焊盘的下凸块金属（UBM）。金属化的第二部分对应于电迹线。焊盘在UBM上提供。硅岛从硅衬底释放出来。

10. 发明授权

US08830628B1 Method and system for providing a perpendicular magnetic recording head 有权
标题翻译：用于提供垂直磁记录头的方法和系统
公开(公告)号：US08830628B1
公开(公告)日：2014-09-09
申请号：US13779529
申请日：2013-02-27
申请人： Western Digital (Fremont), LLC
发明人： Hong Zhang , Ge Yi , Lei Wang , Dujiang Wan , Guanghong Luo , Xiaohai Xiang
IPC分类号： G11B5/17
CPC分类号： G11B5/1278 , G11B5/3116 , G11B5/315 , G11B5/3163 , Y10T29/4902 , Y10T29/49021 , Y10T29/49032 , Y10T29/49043 , Y10T29/49044 , Y10T29/49046 , Y10T29/49048 , Y10T29/49052
摘要： A method and system for providing a magnetic recording transducer having a pole are disclosed. The pole has side(s), a bottom, and a top wider than the bottom. The method and system include providing at least one side gap layer that covers the side(s) and the top of the pole. At least one sacrificial layer is provided on the side gap layer(s). The sacrificial layer(s) are wet etchable and cover the side gap layer(s). The magnetic recording transducer is planarized after the sacrificial layer(s) are provided. Thus, a portion of the side gap and sacrificial layer(s) is removed. A remaining portion of the sacrificial layer(s) is thus left. The method and system also include wet etching the sacrificial layer(s) to remove the remaining portion of the sacrificial layer(s). A wrap around shield is provided after the remaining portion of the sacrificial layer(s) is removed.
摘要翻译：公开了一种用于提供具有极点的磁记录换能器的方法和系统。电极具有侧面，底部和顶部比底部更宽。该方法和系统包括提供覆盖极的侧面和顶部的至少一个侧面间隙层。在侧间隙层上提供至少一个牺牲层。牺牲层是可湿蚀刻的并且覆盖侧间隙层。在提供牺牲层之后，磁记录传感器被平坦化。因此，侧面间隙和牺牲层的一部分被去除。因此留下牺牲层的剩余部分。该方法和系统还包括湿蚀刻牺牲层以去除牺牲层的剩余部分。在除去牺牲层的剩余部分之后提供环绕护罩。

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