公开(公告)号：US06501047B1

公开(公告)日：2002-12-31

申请号：US09713311

申请日：2000-11-16

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

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

IPC分类号： B23K2600

CPC分类号： B23K26/0608 ,  B23K26/067 ,  B23K26/40 ,  B23K2103/50 ,  B23K2103/52 ,  B28D1/221 ,  B28D1/30 ,  B28D5/0011 ,  C03B33/093 ,  C03B33/102 ,  C03C23/0025 ,  C04B41/0036 ,  C04B41/009 ,  C04B41/80 ,  C04B35/00

摘要： Laser-scribing brittle substrates along a curvilinear path is effected by impinging and moving at least two laser light beam spots along the substrate surface, the first spot preheating the substrate and the second smaller spot heating the substrate to the laser-scribing temperature below the softening temperature of the substrate. Embodiments include forming dual spots employing a crystal material or employing dual fiber optic cables each optically linked to a lens. In another embodiment, three spot lasers spots are formed employing a three-spot diffractive lens, the third spot formed behind the second laser-scribing spot and heating the surface to a temperature lower than the laser-scribing temperature. Embodiments further include laser-scribing substantially circular glass, ceramic or glass-ceramic substrates for magnetic recording media.

摘要翻译： 沿着曲线路径的激光划线脆性基板通过沿着基板表面撞击并移动至少两个激光束光斑来实现，第一点预热基板，而第二较小点将基板加热至低于软化处的激光刻划温度 基板的温度。 实施例包括使用晶体材料形成双点或采用光学连接到透镜的双光纤电缆。 在另一个实施例中，使用三点衍射透镜形成三个点激光器点，第三点形成在第二激光划线点后面，并将该表面加热到低于激光刻划温度的温度。 实施例还包括用于磁记录介质的激光划线基本圆形的玻璃，陶瓷或玻璃陶瓷基板。

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：US06535352B2

公开(公告)日：2003-03-18

申请号：US09123691

申请日：1998-07-28

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

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

IPC分类号： G11B582

CPC分类号： G11B5/486 ,  G11B5/10 ,  G11B5/6005

摘要： A head media interface for contact starts and stops. The head media interface including a plurality of bumps extending from bearing surfaces of the slider and a data storage disc including a plurality of generally uniform holes extending below a relatively smooth base surface of the disc in a portion of the disc. The base surface interrupted by holes and the slider bumps forming a contact interface for CSS.

摘要翻译： 用于联系开始和停止的头媒体界面。 所述头部介质接口包括从所述滑块的支承表面延伸的多个凸块和数据存储盘，所述数据存储盘包括在所述盘的一部分中在所述盘的相对平滑的基底表面下方延伸的多个大致均匀的孔。 基面由孔中断，滑块形成CSS的接触界面。

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：US6038619A

公开(公告)日：2000-03-14

申请号：US865338

申请日：1997-05-29

申请人： Lynn Charles Berning ,  Richard H. Mandel, III ,  Carlos H. Morales ,  Thanh Duc Nguyen ,  Henry H. Tsou ,  Hung M. Vu

发明人： Lynn Charles Berning ,  Richard H. Mandel, III ,  Carlos H. Morales ,  Thanh Duc Nguyen ,  Henry H. Tsou ,  Hung M. Vu

IPC分类号： G06F3/06 ,  G06F9/32

CPC分类号： G06F3/0613 ,  G06F3/064 ,  G06F3/0674

摘要： If consecutive read or write requests imposed on a DASD are of the same type and bear a defined sequential logical address relationship (pure sequential, near sequential), then a circular buffered data path using a pair of a synchronously managed read/write ports respectively coupling either a cyclic, concentric, multitracked storage medium or a cyclic, spiral-tracked storage medium and a device interface can continue data streaming unabated. Otherwise, the path would ordinarily have to be disabled and reconnected using a control microprocessor in respect of any random sequence of requests.

摘要翻译： 如果对DASD施加的连续读或写请求的类型相同，并且具有定义的顺序逻辑地址关系（纯顺序，接近顺序），则循环缓冲数据路径使用一对同步管理的读/写端口分别耦合 循环，同心，多轨存储介质或循环，螺旋跟踪的存储介质和设备接口可以不间断地继续数据流。 否则，通常必须使用控制微处理器关于任何随机的请求序列来禁用和重新连接路径。