公开(公告)号：US06416839B1

公开(公告)日：2002-07-09

申请号：US09797986

申请日：2001-03-05

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

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

IPC: G11B582

CPC classification number: G11B5/8408 ,  G11B5/85 ,  Y10S428/90 ,  Y10T428/24479

Abstract: 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.

Abstract translation: 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：US06313647B1

公开(公告)日：2001-11-06

申请号：US09436586

申请日：1999-11-09

Applicant: Zhu Feng ,  Chiu-Shing Frank Poon ,  Tan Guo Liu ,  Vidya Gubbi ,  Chung Yuang Shih

Inventor： Zhu Feng ,  Chiu-Shing Frank Poon ,  Tan Guo Liu ,  Vidya Gubbi ,  Chung Yuang Shih

IPC: G01R2926

CPC classification number: G01R27/02 ,  G11B5/012 ,  G11B5/488 ,  G11B33/10

Abstract: Disclosed is anew technique for measuring the resistivity of ultra-thin carbon films (less than 200 Å). The technique involves using a probe with very smooth surface, a thin layer lubricant (20-30Å)that enables the intimate and stable electrical contact between probe and the thin film, and measurement of I-V curve to determine resistance. Resistivity measurements were conducted on carbon films doped with hydrogen and nitrogen at different mixture ratios and different thicknesses, and the results were compared with those obtained on a commercially available machine that uses a mercury probe. The advantages of the present technique include simple in use, less expensive and quick measurements with reasonably good accuracy.

Abstract translation: 公开了用于测量超薄碳膜（小于200埃）的电阻率的新技术。 该技术涉及使用具有非常光滑表面的探针，薄层润滑剂（20-30Å），使得探针和薄膜之间的紧密和稳定的电接触，以及测量I-V曲线以确定电阻。 对以不同混合比和不同厚度掺杂氢和氮的碳膜进行电阻率测量，并将结果与​​使用汞探针的市售机器上获得的结果进行比较。 本技术的优点包括使用简单，成本低廉且测量精度高，测量精度高。