公开(公告)号：US06787732B1

公开(公告)日：2004-09-07

申请号：US10228066

申请日：2002-08-27

申请人： Jialuo Jack Xuan ,  Chung-Yuang Shih ,  Thanh Duc Nguyen

发明人： Jialuo Jack Xuan ,  Chung-Yuang Shih ,  Thanh Duc Nguyen

IPC分类号： B23K2636

CPC分类号： B23K26/40 ,  B23K26/0823 ,  B23K26/389 ,  B23K26/53 ,  B23K2103/50 ,  B28D1/221 ,  C03B33/04 ,  C03B33/091 ,  Y02P40/57

摘要： A method of separating a sheet of a brittle material into portions by means of laser-scribing, comprising steps of: (a) providing a sheet of a brittle material having first and second opposing major surfaces separated by a thicknesst; (b) providing a source of laser energy adjacent said first surface, adapted for supplying a focussed beam of laser energy converging to a focal spot in a plane parallel to the first surface; (c) irradiating the sheet of brittle material with the focussed beam of laser energy, the plane of the focal spot of the beam initially being positioned within the sheet just below the first surface; and (d) continuing irradiating while simultaneously providing relative movement between the focal spot of the laser beam and the sheet to move the focal spot at a pre-selected rate and path extending over the first surface, and moving the depth of the plane of the focal spot at a pre-selected rate through a major portion of thickness t of the sheet to form a micro-crack zone extending along the pre-selected path from just below the first surface to a shallow depth just below the second surface.

摘要翻译： 一种通过激光划线将脆性材料片分离成部分的方法，包括以下步骤：（a）提供具有由厚度分隔的第一和第二相对主表面的脆性材料片;（b）提供 与所述第一表面相邻的激光能量源，适于提供聚焦于与所述第一表面平行的平面中的焦斑的激光能量的聚焦束;（c）用所述聚焦激光能束照射所述脆性材料片， 梁的焦点的平面最初位于第一表面正下方的片材内; 和（d）继续照射，同时在激光束的焦斑和片材之间提供相对运动，以便以预先选择的速率和在第一表面上延伸的路径移动焦点，并且移动 焦点以片材的厚度t的大部分以预先选定的速率形成微裂纹区域，该微裂纹区域沿着从第一表面的正下方延伸到刚好在第二表面正下方的浅深度的预选路径延伸。

公开(公告)号：US06549360B1

公开(公告)日：2003-04-15

申请号：US09311363

申请日：1999-05-13

申请人： Jialuo Jack Xuan ,  Thanh Duc Nguyen ,  Chung-Yuang Shih

发明人： Jialuo Jack Xuan ,  Thanh Duc Nguyen ,  Chung-Yuang Shih

IPC分类号： G11B1902

CPC分类号： G11B5/59633

摘要： A magnetic recording medium is formed with a distribution of laser micromachined servo-marks in the form of pits or indentations with an attendant reduction in servo-tracking area and increased data-recording speed. Embodiments include laser texturing to form a radially extending linear or arcuate series of circular or elliptical pits across the data zone. The micromachined servo-marks are detected by mechanical or electrical means and denote the beginning and end of magnetically recorded servo-information in a data track, thereby enabling accurate and timely positioning of the read/write head by the servo-controller of the hard drive.

摘要翻译： 磁记录介质形成为具有凹坑或凹痕形式的激光微加工伺服标记的分布，伴随着伺服跟踪区域的降低和数据记录速度的提高。 实施例包括激光纹理以在数据区域上形成径向延伸的线性或弓形系列圆形或椭圆形凹坑。 微机械伺服标记由机械或电气装置检测，并表示数据磁道中磁记录伺服信息的开始和结束，从而可以通过硬盘驱动器的伺服控制器准确和及时地定位读/写头 。

公开(公告)号：US06468596B1

公开(公告)日：2002-10-22

申请号：US09577674

申请日：2000-05-25

申请人： Youming Liu ,  Jialuo Jack Xuan ,  Xiaohua Shel Yang ,  Chung-Yuang Shih ,  Vidya K. Gubbi

发明人： Youming Liu ,  Jialuo Jack Xuan ,  Xiaohua Shel Yang ,  Chung-Yuang Shih ,  Vidya K. Gubbi

IPC分类号： C08F248

CPC分类号： G11B5/8408

摘要： A magnetic recording medium is formed with enhanced tribological performance by applying a raw, unfractionated lubricant having a wide molecular weight distribution over a disk surface and treating the deposited lubricant with a laser light beam to effect in-situ fractionation of the lubricant to a very narrow molecular weight distribution. Embodiments of the present invention also include laser treating a deposited lubricant to increase the thickness of the bonded lube layer.

摘要翻译： 通过在盘表面上施加具有宽分子量分布的原始未分级润滑剂并用激光束处理沉积的润滑剂以使润滑剂原位分级至非常狭窄，形成具有增强的摩擦学性能的磁记录介质 分子量分布。 本发明的实施例还包括激光处理沉积的润滑剂以增加粘结润滑层的厚度。

公开(公告)号：US06416839B1

公开(公告)日：2002-07-09

申请号：US09797986

申请日：2001-03-05

申请人： Jialuo Jack Xuan ,  Chung-Yuang Shih ,  Xiaohua Shel Yang ,  Youming Liu ,  Vidya K. Gubbi

发明人： Jialuo Jack Xuan ,  Chung-Yuang Shih ,  Xiaohua Shel Yang ,  Youming Liu ,  Vidya K. Gubbi

IPC分类号： G11B582

CPC分类号： G11B5/8408 ,  G11B5/85 ,  Y10S428/90 ,  Y10T428/24479

摘要： Stiction failure of a magnetic recording medium is reduced by forming a lubricant topcoat having a first thickness over the landing zone greater than a second thickness over the data zone, with a sharp transition step having an angle of at least about 70° with respect to a line perpendicular to the surface. Embodiments include depositing a lubricant topcoat at a substantially uniform thickness and reducing the thickness of the lubricant topcoat over the data zone by about 20% to about 80% employing a laser light beam to volatilize the lubricant.

摘要翻译： 通过在数据区上形成大于第二厚度的着陆区上的第一厚度的润滑剂外涂层，通过形成具有至少约70°的角度的尖锐过渡步骤来减少磁记录介质的静摩擦故障 线垂直于表面。 实施例包括以基本均匀的厚度沉积润滑剂面漆，并使用激光束将润滑剂外涂层的数量区域减少约20％至约80％，使润滑剂挥发。

公开(公告)号：US06320728B1

公开(公告)日：2001-11-20

申请号：US09311358

申请日：1999-05-13

申请人： Jialuo Jack Xuan ,  Xiaohua Shel Yang ,  Chung-Yuang Shih ,  Taesun E. Kim

发明人： Jialuo Jack Xuan ,  Xiaohua Shel Yang ,  Chung-Yuang Shih ,  Taesun E. Kim

IPC分类号： G11B582

CPC分类号： G11B5/82 ,  B23K26/0823

摘要： A magnetic data storage medium is provided that has a substrate surface with regularly spaced, continuous ridges and grooves thereby to enhance the magnetic layer crystallization orientation. Data storage tracks extend longitudinally along the ridges, the grooves between adjacent ridges providing separation between data tracks on either side of each ridge. To form the substrate surface a focused laser beam is continuously applied to the substrate in a path of generally circumferential direction on the disk surface between inner and outer radii of a data storage zone while the substrate is rotated at a relatively constant first speed and the focused beam is moved radially at a relatively constant second speed.

摘要翻译： 提供磁数据存储介质，其具有具有规则间隔的连续脊和凹槽的基板表面，从而增强磁层结晶取向。 数据存储轨道沿着脊部纵向延伸，相邻脊之间的沟槽提供每个脊的任一侧的数据轨道之间的间隔。 为了形成衬底表面，聚焦的激光束在数据存储区的内半径和外半径之间的盘表面的大致圆周方向的路径上连续地施加到衬底，同时衬底以相对恒定的第一速度旋转，并且聚焦 光束以相对恒定的第二速度径向移动。

公开(公告)号：US06744009B1

公开(公告)日：2004-06-01

申请号：US10227751

申请日：2002-08-27

申请人： Jialuo Jack Xuan ,  Chung-Yuang Shih

发明人： Jialuo Jack Xuan ,  Chung-Yuang Shih

IPC分类号： B23K2614

CPC分类号： B23K26/146 ,  B23K26/40 ,  B23K26/53 ,  B23K2103/50 ,  B28D1/221 ,  B28D5/0011 ,  C03B33/04 ,  C03B33/093 ,  Y02P40/57

摘要： A method of segmenting a sheet of a brittle material, comprising sequential steps of: subjecting the sheet to a first laser-based process to form a laser-scribing line extending from a surface of the sheet to a first depth below the surface; subjecting the sheet to a second laser-based process to form a laser-breaking line extending from the laser-scribing line at the first depth below the surface to a second, greater depth below the surface; and segmenting the sheet along the thus-formed combined laser scribing + laser-breaking line.

摘要翻译： 一种分割脆性材料片的方法，包括以下顺序的步骤：对片材进行基于第一激光的工艺，以形成从片材的表面延伸到表面下方的第一深度的激光划线; 以形成从激光刻划线在表面下方的第一深度延伸到表面下方较深的第二深度处的激光断裂线; 并沿着如此形成的组合激光划线+激光断裂线分割片材。

公开(公告)号：US06221442B1

公开(公告)日：2001-04-24

申请号：US09311366

申请日：1999-05-13

申请人： Jialuo Jack Xuan ,  Chung-Yuang Shih ,  Xiaohua Shel Yang ,  Youming Liu ,  Vidya K. Gubbi

发明人： Jialuo Jack Xuan ,  Chung-Yuang Shih ,  Xiaohua Shel Yang ,  Youming Liu ,  Vidya K. Gubbi

IPC分类号： B05D300

CPC分类号： G11B5/8408 ,  G11B5/85 ,  Y10S428/90 ,  Y10T428/24479

摘要： Stiction failure of a magnetic recording medium is reduced by forming a lubricant topcoat having a first thickness over the landing zone greater than a second thickness over the data zone, with a sharp transition step having an angle of at least about 70° with respect to a line perpendicular to the surface. Embodiments include depositing a lubricant topcoat at a substantially uniform thickness and reducing the thickness of the lubricant topcoat over the data zone by about 20% to about 80% employing a laser light beam to volatilize the lubricant.

摘要翻译： 通过在数据区上形成大于第二厚度的着陆区上的第一厚度的润滑剂外涂层，通过形成具有至少约70°的角度的尖锐过渡步骤来减少磁记录介质的静摩擦故障 线垂直于表面。 实施例包括以基本均匀的厚度沉积润滑剂面漆，并使用激光束将润滑剂外涂层的数量区域减少大约20％至大约80％，使润滑剂挥发。

公开(公告)号：US5956217A

公开(公告)日：1999-09-21

申请号：US919204

申请日：1997-08-28

申请人： Jialuo Jack Xuan ,  Chung Yuang Shih ,  Thanh Nguyen

发明人： Jialuo Jack Xuan ,  Chung Yuang Shih ,  Thanh Nguyen

IPC分类号： G11B5/60 ,  G11B5/82 ,  G11B33/10

CPC分类号： G11B5/6005 ,  G11B5/82 ,  G11B33/10

摘要： A reference disk, used to determine the glide height of a transducer head above the surface of a magnetic recording medium, is accurately formed by employing a laser light beam to produce protrusions on the reference disk. The protrusions can be formed in a variety of effective patterns to obtain a stable electrical signal. Embodiments include circumferential rows of uniformly or randomly spaced protrusions.

摘要翻译： 用于通过使用激光束在参考盘上产生突起来精确地形成用于确定磁记录介质表面之上的换能器头的滑行高度的参考盘。 突起可以以各种有效图案形成以获得稳定的电信号。 实施例包括均匀或随机间隔的突起的圆周排。

公开(公告)号：US06297910B1

公开(公告)日：2001-10-02

申请号：US09613557

申请日：2000-07-10

申请人： Jialuo Jack Xuan ,  Zhengda Pan ,  Chung-Yuang Shih

发明人： Jialuo Jack Xuan ,  Zhengda Pan ,  Chung-Yuang Shih

IPC分类号： G02B2710

CPC分类号： B23K26/0608 ,  B23K26/0604 ,  B23K26/067 ,  G02B27/144

摘要： A laser-optical wave mixing technique is provided for forming a high density textured data zone in an efficient and accurate manner. A single coherent laser beam of wavelength &lgr; is split into two beams with roughly the same intensity. These two beams are then overlapped with a cross angle of 2&thgr; and focused at the disk surface, resulting in an intensity grating thereon. The intensity grating creates a wave-form pattern consisting of a series of high-energy laser beam lines that will heat the target surface and make surface topographical changes accordingly.

摘要翻译： 提供了一种激光 - 光波混合技术，用于以有效和准确的方式形成高密度纹理数据区。 波长羔羊的单个相干激光束被分成具有大致相同强度的两个光束。 然后将这两个光束以2θ的交叉角叠加并聚焦在光盘表面，从而在其上形成强度光栅。 强度光栅产生由一系列高能量激光束线构成的波形图案，其将加热目标表面并相应地使表面形貌发生变化。

公开(公告)号：US06169631A

公开(公告)日：2001-01-02

申请号：US09311362

申请日：1999-05-13

申请人： Jialuo Jack Xuan ,  Zhengda Pan ,  Chung-Yuang Shih

发明人： Jialuo Jack Xuan ,  Zhengda Pan ,  Chung-Yuang Shih

IPC分类号： G02B2710

CPC分类号： B23K26/0608 ,  B23K26/0604 ,  B23K26/067 ,  G02B27/144

摘要： A laser-optical wave mixing technique is provided for forming a high density textured data zone in an efficient and accurate manner. A single coherent laser beam of wavelength &lgr; is split into two beams with roughly the same intensity. These two beams are then overlapped with a cross angle of 2&thgr; and focused at the disk surface, resulting in an intensity grating thereon. The intensity grating creates a wave-form pattern consisting of a series of high-energy laser beam lines that will heat the target surface and make surface topographical changes accordingly.