公开(公告)号：US08125856B1

公开(公告)日：2012-02-28

申请号：US12613452

申请日：2009-11-05

Applicant: Ruolin Li ,  Ut Tran ,  Yufeng Hu ,  Jinshan Li

Inventor： Ruolin Li ,  Ut Tran ,  Yufeng Hu ,  Jinshan Li

IPC: G11B11/00

CPC classification number: G11B5/105 ,  G11B5/6088 ,  G11B2005/0021

Abstract: A method and system for providing an energy assisted magnetic recording (EAMR) disk drive are described. A media for storing data and a slider are provided. The slider has a back side, a trailing face, and an air-bearing surface (ABS) opposite to the back side. At least one laser is coupled with the trailing face of the slider, and has an optic axis substantially parallel to the trailing face. The laser(s) provide energy substantially along the optic axis. Optics are coupled with the trailing face of the slider and receive the energy from the laser(s) via free space. At least one EAMR transducer coupled with the slider. At least part of the EAMR transducer resides in proximity to the ABS. The optics direct the energy from the laser(s) to the EAMR transducer(s). The EAMR transducer(s) receive the energy from the optics and write to the media using the energy.

Abstract translation: 描述了一种用于提供能量辅助磁记录（EAMR）磁盘驱动器的方法和系统。 提供了用于存储数据的介质和滑块。 滑块具有背面，后表面和与背面相对的空气轴承表面（ABS）。 至少一个激光器与滑块的后表面耦合，并且具有基本上平行于后面的光轴。 激光器基本沿着光轴提供能量。 光学器件与滑块的后表面耦合，并通过自由空间从激光器接收能量。 至少一个EAMR传感器与滑块相连。 至少部分EAMR传感器位于ABS附近。 光学器件将能量从激光器引导到EAMR传感器。 EAMR传感器从光学器件接收能量，并使用能量写入介质。

公开(公告)号：US08098999B2

公开(公告)日：2012-01-17

申请号：US10465750

申请日：2003-06-19

Applicant: Ruolin Li ,  Anders Grunnet-Jepsen ,  John Sweetser ,  Ut Tran

Inventor： Ruolin Li ,  Anders Grunnet-Jepsen ,  John Sweetser ,  Ut Tran

IPC: H04B10/00

CPC classification number: G02B6/29322 ,  G02B6/29323 ,  G02B6/29395

Abstract: A tunable filter may be utilized to successively tune to different wavelengths. As each wavelength of the wavelength division multiplexed signal is extracted, it may be successively power monitored. Thus, power monitoring may done without requiring separate power monitors for each channel. This results in considerable advantages in some embodiments, including reduced size, reduced complexities in fabrication, and reduced yield issues in some embodiments.

Abstract translation: 可以使用可调谐滤波器来连续调谐到不同的波长。 当波分多路复用信号的每个波长被提取时，可以连续地进行功率监视。 因此，可以在不需要用于每个通道的单独的功率监视器的情况下进行功率监视。 这在一些实施例中导致显着的优点，包括在一些实施例中减小的尺寸，降低的制造复杂性以及降低的产量问题。

公开(公告)号：US08077557B1

公开(公告)日：2011-12-13

申请号：US12468813

申请日：2009-05-19

Applicant: Yufeng Hu ,  Ruolin Li ,  Ut Tran ,  Jinshan Li

Inventor： Yufeng Hu ,  Ruolin Li ,  Ut Tran ,  Jinshan Li

IPC: G11B11/05

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

Abstract: A magnetic recording device comprises a multi-aperture vertical cavity surface emitting laser (VCSEL) operably coupled to a magnetic recording head and a plurality of waveguides disposed in the magnetic recording head. Each of the plurality of waveguides has a first end coupled to a different aperture of the multi-aperture VCSEL. The magnetic recording device further comprises a near field transducer disposed in the magnetic recording head. Each of the plurality of waveguides has a second end coupled to the near field transducer.

Abstract translation: 磁记录装置包括可操作地耦合到磁记录头的多孔垂直腔表面发射激光器（VCSEL）和设置在磁记录头中的多个波导。 多个波导中的每一个具有耦合到多孔径VCSEL的不同孔径的第一端。 磁记录装置还包括设置在磁记录头中的近场换能器。 多个波导中的每一个具有耦合到近场换能器的第二端。

公开(公告)号：US08057108B2

公开(公告)日：2011-11-15

申请号：US12847117

申请日：2010-07-30

Applicant: Achintya K. Bhowmik ,  Nagesh K. Vodrahalli ,  Gennady Farber ,  Hai-Feng Liu ,  Hamid Eslampour ,  Ut Tran ,  William B. Wong ,  Ruolin Li ,  Jesper Arentoft Jayaswal

Inventor： Achintya K. Bhowmik ,  Nagesh K. Vodrahalli ,  Gennady Farber ,  Hai-Feng Liu ,  Hamid Eslampour ,  Ut Tran ,  William B. Wong ,  Ruolin Li ,  Jesper Arentoft Jayaswal

IPC: G02B6/36

CPC classification number: H01S5/141 ,  H01L2224/48091 ,  H01L2224/73265 ,  H01S5/02248 ,  H01S5/0268 ,  H01S5/0683 ,  H01S5/4062 ,  H01S5/4087 ,  H01L2924/00014

Abstract: Embodiments of an optical detection apparatus are disclosed which may include one or more of a waveguide, a trench formed in the waveguide, a reflective surface, and a photodetector. The waveguide may be formed in a semiconductor substrate to propagate an optical signal received at a first end of the waveguide. The trench may also be formed in the waveguide having a first sidewall and a second sidewall, the first and second sidewalls forming first and second angles with the waveguide's propagation direction. The second sidewall may include a reflective surface formed thereon. The photodetector may be configured to receive an optical signal propagated in the waveguide, through the first sidewall and reflected from the reflective surface on the second sidewall.

Abstract translation: 公开了一种光学检测装置的实施例，其可以包括波导，在波导中形成的沟槽，反射表面和光电检测器中的一个或多个。 波导可以形成在半导体衬底中，以传播在波导的第一端处接收的光信号。 沟槽也可以形成在具有第一侧壁和第二侧壁的波导中，第一和第二侧壁与波导的传播方向形成第一和第二角度。 第二侧壁可以包括形成在其上的反射表面。 光电检测器可以被配置为接收在波导中传播的光信号，通过第一侧壁并从第二侧壁上的反射表面反射。

公开(公告)号：US07319047B2

公开(公告)日：2008-01-15

申请号：US11333454

申请日：2006-01-17

Applicant: Ruolin Li ,  Ut Tran

Inventor： Ruolin Li ,  Ut Tran

IPC: H01L21/00

CPC classification number: G02F1/065 ,  G02F1/0147 ,  G02F2201/066

Abstract: A polymer well may be formed over a thermal oxide formed over a semiconductor substrate in one embodiment. The well may include a waveguide and a pair of heaters adjacent the waveguide. Each heater may be mounted on a platform of insulating material to reduce heat loss through the substrate and the thermal oxide, in one embodiment.

Abstract translation: 在一个实施例中，聚合物阱可以形成在半导体衬底上形成的热氧化物上。 阱可以包括波导和邻近波导的一对加热器。 在一个实施例中，每个加热器可以安装在绝缘材料的平台上，以减少通过基底和热氧化物的热损失。

公开(公告)号：US20070274640A1

公开(公告)日：2007-11-29

申请号：US11827267

申请日：2007-07-11

Applicant: Ut Tran ,  Hamid Eslampour

Inventor： Ut Tran ,  Hamid Eslampour

IPC: G02B6/26

CPC classification number: G02B6/4232 ,  G02B6/422 ,  G02B6/4227 ,  G02B6/423 ,  H01S5/0224 ,  H01S5/02268 ,  H01S5/02272

Abstract: Optical components may be precisely positioned in three dimensions with respect to one another. A bonder which has the ability to precisely position the components in two dimensions can be utilized. The components may be equipped with contacts at different heights so that as the components come together in a third dimension, their relative positions can be sensed. This information may be fed back to the bonder to control the precise alignment in the third dimension.

公开(公告)号：US06445536B1

公开(公告)日：2002-09-03

申请号：US09140903

申请日：1998-08-27

Applicant: Steven C. Rudy ,  Hugh C. Hiner ,  Lien-Chang Wang ,  Yong Shen ,  Ut Tran ,  Yunju Ra ,  Durga Ravipati

Inventor： Steven C. Rudy ,  Hugh C. Hiner ,  Lien-Chang Wang ,  Yong Shen ,  Ut Tran ,  Yunju Ra ,  Durga Ravipati

IPC: G11B533

CPC classification number: G11B5/3163 ,  G11B5/3109 ,  G11B5/3116 ,  G11B5/313 ,  G11B5/3967

Abstract: A thin film head apparatus and method for forming such a thin film head. In one approach, the present invention recites forming a cavity in a dielectric layer. Next, a layer of high magnetic field saturation (HBsat) material is sputter-deposited over the dielectric layer such that the HBsat material is deposited into the cavity formed in the dielectric layer. The cavity in the dielectric layer functions as a mold or “stencil” for the HBsat material. The HBsat material deposited into the cavity is used to form the first core of a thin film head. After the formation of the first core of the thin film head, a gap layer of material is deposited above the dielectric layer and above the first core. Next, a layer of HBsat material is sputter-deposited above the gap layer of material and above the first core of the thin film head. The layer of HBsat material disposed above the gap layer of material and above the first core is used to form the second core of the thin film head. Hence, this invention forms first and second cores of a thin film head using sputter deposition processes. As a result, selected HBsat materials which were not well suited to conventional thin film head formation methods can now be used to form the cores of thin film head structures.

Abstract translation: 一种用于形成这种薄膜头的薄膜头装置和方法。 在一种方法中，本发明阐述了在电介质层中形成空腔。 接下来，将一层高磁场饱和（HBsat）材料溅射沉积在电介质层上，使得HBsat材料沉积到形成在电介质层中的空腔中。 电介质层中的空腔用作HBsat材料的模具或“模板”。 沉积到腔中的HBsat材料用于形成薄膜头的第一芯。 在形成薄膜头的第一芯之后，材料的间隙层沉积在介电层上方并在第一芯上方。 接下来，将一层HBsat材料溅射沉积在材料的间隙层的上方并位于薄膜头的第一芯上方。 设置在材料的间隙层之上和第一芯之上的HBsat材料层用于形成薄膜头的第二芯。 因此，本发明使用溅射沉积工艺形成薄膜头的第一和第二芯。 结果，现在可以使用非常适合于常规薄膜头形成方法的所选HBsat材料来形成薄膜头结构的芯。

公开(公告)号：US5578342A

公开(公告)日：1996-11-26

申请号：US498169

申请日：1995-07-05

Applicant: Ut Tran ,  Tai Lee ,  Tran Son

Inventor： Ut Tran ,  Tai Lee ,  Tran Son

IPC: G11B5/31 ,  B05D5/12 ,  B05D1/18 ,  C23C14/32 ,  C25D5/02

CPC classification number: G11B5/3116 ,  G11B5/3163

Abstract: A process for producing a thin film magnetic head uses the upper magnetic pole as a self-aligning mask for partially trimming the lower magnetic pole, wherein the yoke and pole tip regions to be trimmed are processed by separate and distinct photolithographic steps, thereby achieving noncritical alignment in the yoke area, while maintaining critical alignment in the pole tip region which includes the transducing gap.

Abstract translation: 用于制造薄膜磁头的方法使用上磁极作为自对准掩模，用于部分修整下磁极，其中要修整的磁轭和磁极尖端区域通过分开且不同的光刻步骤进行处理，由此实现非临界 同时在包括换能间隙的极尖区域保持临界对准。

公开(公告)号：US09525119B2

公开(公告)日：2016-12-20

申请号：US14103672

申请日：2013-12-11

Applicant: Dimitre Latev ,  Arman Hajati ,  Darren Todd Imai ,  Ut Tran

Inventor： Dimitre Latev ,  Arman Hajati ,  Darren Todd Imai ,  Ut Tran

IPC: B06B1/02 ,  H01L41/04 ,  B06B1/06 ,  H01L41/047 ,  H01L41/09 ,  H01L41/29 ,  B32B37/18

CPC classification number: H01L41/042 ,  B06B1/0622 ,  B32B37/12 ,  B32B37/185 ,  B32B2457/00 ,  H01L41/0475 ,  H01L41/098 ,  H01L41/29 ,  Y10T156/10

Abstract: Techniques and structures for providing flexibility of a micromachined transducer array. In an embodiment, a transducer array includes a plurality of transducer elements each comprising a piezoelectric element and one or more electrodes disposed in or on a support layer. The support layer is bonded to a flexible layer including a polymer material, wherein flexibility of the transducer array results in part from a total thickness of a flexible layer. In another embodiment, flexibility of the transducer array results in part from one or more flexural structures formed therein.

Abstract translation: 提供微机械传感器阵列的灵活性的技术和结构。 在一个实施例中，换能器阵列包括多个换能器元件，每个换能器元件包括压电元件和设置在支撑层中或支撑层上的一个或多个电极。 支撑层结合到包括聚合物材料的柔性层，其中换能器阵列的灵活性部分地来自柔性层的总厚度。 在另一个实施例中，换能器阵列的灵活性部分地由其中形成的一个或多个弯曲结构导致。

公开(公告)号：US08797684B1

公开(公告)日：2014-08-05

申请号：US13331020

申请日：2011-12-20

Applicant: Ut Tran ,  Zhigang Bai ,  Kevin K. Lin

Inventor： Ut Tran ,  Zhigang Bai ,  Kevin K. Lin

IPC: G11B5/17

CPC classification number: G11B5/3123

Abstract: A method and system provide a magnetic transducer having an air-bearing surface (ABS). The magnetic transducer includes a write pole and a coil. The write pole has a pole tip and a yoke. The coil energizes the write pole and includes a plurality of turns. A turn of the plurality of turns has a first portion and a second portion. The first portion has a first length in a stripe height direction substantially perpendicular to the ABS. The second portion has a second length in the stripe height direction. The second length is greater than the first length and extends at least to at least one adjacent turn.

Abstract translation: 一种方法和系统提供具有空气轴承表面（ABS）的磁换能器。 磁换能器包括写极和线圈。 写极具有极尖和轭。 线圈激励写入极并且包括多个匝。 多个匝的转动具有第一部分和第二部分。 第一部分具有基本上垂直于ABS的条带高度方向上的第一长度。 第二部分在条带高度方向上具有第二长度。 第二长度大于第一长度并至少延伸至至少一个相邻的匝。