公开(公告)号：US20220108363A1

公开(公告)日：2022-04-07

申请号：US17499730

申请日：2021-10-12

申请人： Hung Viet Nguyen ,  Paul S. Martin

发明人： Hung Viet Nguyen ,  Paul S. Martin

IPC分类号： G06Q30/02

摘要： A system and method of model-based estimating comprising: receiving a master estimate, including a plurality of master subitem estimates; generating a model estimate, including a plurality of model subitem estimates; generating a subjectives estimate, including a plurality of subjectives subitem estimates; receiving a model update; determining which of said model subitem estimates and said subjectives subitem estimates is impacted by said model update; determining one or more cost updates to said model subitem estimates and said subjectives subitem estimates; updating at least one of said model subitem estimates and said subjectives subitem estimate, based at least in part upon said step of determining one or more cost updates to said model subitem estimates and said subjectives subitem estimates.

公开(公告)号：US06246543B1

公开(公告)日：2001-06-12

申请号：US08714831

申请日：1996-09-17

申请人： Peter Michael Baumgart ,  Wing Pun Leung ,  Hung Viet Nguyen ,  Thao Anh Nguyen ,  Andrew Ching Tam ,  Anthony Wu

发明人： Peter Michael Baumgart ,  Wing Pun Leung ,  Hung Viet Nguyen ,  Thao Anh Nguyen ,  Andrew Ching Tam ,  Anthony Wu

IPC分类号： G11B582

CPC分类号： G11B5/8408 ,  B23K26/355 ,  B23K26/40 ,  B23K2103/16 ,  B23K2103/52 ,  C03C23/0025 ,  G11B5/8404

摘要： A magnetic recording disk with a glass substrate is textured by a process which creates an array of bumps in a magnetic head contact start and stop (CSS) region of the disk. The texturing process uses a laser to provide pulses of predetermined energy fluence on the glass substrate to produce a plurality of raised bumps in the substrate surface, each bump having a surface elevation controllable to within a few nanometers. The bumps are created without unwanted micro-cracking or ejection of surface material by exploiting a narrow operating region below the abrupt thermal shock fluence threshold of the glass substrate. This textured glass substrate provides the magnetic recording disk with improved stiction, wear, coatability and sensor flying height properties.

摘要翻译： 具有玻璃基板的磁记录盘通过在磁盘的磁头接触起始和停止（CSS）区域中产生凸起阵列的过程而被纹理化。 纹理化处理使用激光器在玻璃基板上提供预定能量注量的脉冲，以在基板表面中产生多个凸起的凸起，每个凸起具有可控制在几纳米内的表面高度。 通过利用低于玻璃基板的突然热冲击能量密度阈值的窄工作区域，产生不产生不希望的微裂纹或表面材料喷射的凸块。 这种纹理化的玻璃基板为磁记录盘提供了改善的粘性，磨损，涂布性和传感器飞行高度特性。