High temperature thin film property measurement system and method
    11.
    发明授权
    High temperature thin film property measurement system and method 有权
    高温薄膜性能测量系统及方法

    公开(公告)号:US06198533B1

    公开(公告)日:2001-03-06

    申请号:US09376711

    申请日:1999-08-17

    IPC分类号: G01B2117

    CPC分类号: G01B11/065 G01B11/303

    摘要: A system and method for measuring lubricant thickness and degradation, carbon wear and carbon thickness, and surface roughness and debris on thin film magnetic disks at angles that are not substantially Brewster's angle of the thin film (carbon) protective overcoat in a high temperature environment. A focused optical light whose polarization can be switched between P or S polarization is incident at an angle to the surface of the thin film magnetic disk. The polarization switch can be accomplished using a temperature compensated quartz half plate. The range of angles can be from zero degrees from normal to near Brewster's angle and from an angle greater than Brewster's angle to 90 degrees. This range of angles allows the easy measurement of the change in lubricant thickness due to the interaction of the thin film head, the absolute lubricant thickness and degradation of the lubricant. It also allows the measurement of changes in carbon thickness and the absolute carbon thickness. The surface roughness can also be measured at any of the angles specified above.

    摘要翻译: 用于测量薄膜磁盘上的润滑剂厚度和降解,碳磨损和碳厚度的表面粗糙度和碎屑的系统和方法,其在高温环境中基本上不是薄膜(碳)保护涂层的布鲁斯特角。 其偏振可以在P或S偏振之间切换的聚焦光学光以与薄膜磁盘的表面成一定角度入射。 偏光开关可以使用温度补偿的石英半板完成。 角度范围可以从普通到布鲁斯特角附近的零度以及从布鲁斯特角度大到90度的角度。 这种角度范围可以容易地测量润滑剂厚度的变化,这是由于薄膜头的相互作用,绝对润滑剂厚度和润滑剂的劣化。 它还允许测量碳厚度和绝对碳厚度的变化。 表面粗糙度也可以在上述任何角度测量。

    System and method for measuring thin film properties and analyzing two-dimensional histograms using substraction operation
    12.
    发明授权
    System and method for measuring thin film properties and analyzing two-dimensional histograms using substraction operation 有权
    使用减法运算测量薄膜性质和分析二维直方图的系统和方法

    公开(公告)号:US06229610B1

    公开(公告)日:2001-05-08

    申请号:US09376705

    申请日:1999-08-17

    IPC分类号: G01B2117

    CPC分类号: G01B11/065 G01B11/303

    摘要: A system and method for measuring lubricant thickness and degradation, carbon wear and carbon thickness, and surface roughness of thin film magnetic disks at angles that are not substantially Brewster's angle of the thin film (carbon) protective overcoat. A focused optical light whose polarization can be switched between P or S polarization is incident at an angle to the surface of the thin film magnetic disk. The range of angles can be from zero degrees from normal to near Brewster's angle and from an angle greater than Brewster's angle to 90 degrees. This range of angles allows the easy measurement of the change in lubricant thickness due to the interaction of the thin film head, the absolute lubricant thickness and degradation of the lubricant. It also allows the measurement of changes in carbon thickness and the absolute carbon thickness. The surface roughness can also be measured at any of the angles specified above. The present invention utilizes a first and second histogram representing disk properties (1) at two different time periods, (2) at two different locations on the disk, or (3) on two different disks.

    摘要翻译: 用于测量薄膜(碳)保护外涂层基本上布鲁斯特角角度的薄膜磁盘的润滑剂厚度和降解,碳磨损和碳厚度以及表面粗糙度的系统和方法。 其偏振可以在P或S偏振之间切换的聚焦光学光以与薄膜磁盘的表面成一定角度入射。 角度范围可以从普通到布鲁斯特角附近的零度以及从布鲁斯特角度大到90度的角度。 这种角度范围可以容易地测量润滑剂厚度的变化,这是由于薄膜头的相互作用,绝对润滑剂厚度和润滑剂的劣化。 它还允许测量碳厚度和绝对碳厚度的变化。 表面粗糙度也可以在上述任何角度测量。 本发明利用在两个不同时间段(2)在盘上的两个不同位置或(3)在两个不同盘上的表示盘属性(1)的第一和第二直方图。

    System and method for measuring thin film properties and analyzing two-dimensional histograms using and/not operations
    13.
    发明授权
    System and method for measuring thin film properties and analyzing two-dimensional histograms using and/not operations 失效
    用于测量薄膜性质的系统和方法,并使用和/或操作分析二维直方图

    公开(公告)号:US06268919B1

    公开(公告)日:2001-07-31

    申请号:US09376151

    申请日:1999-08-17

    IPC分类号: G01B2117

    CPC分类号: G01B11/065 G01B11/303

    摘要: A system and method for measuring lubricant thickness and degradation, carbon wear and carbon thickness, and surface roughness of thin film magnetic disks at angles that are not substantially Brewster's angle of the thin film (carbon) protective overcoat. A focused optical light whose polarization can be switched between P or S polarization is incident at an angle to the surface of the thin film magnetic disk. The range of angles can be from zero degrees from normal to near Brewster's angle and from an angle greater than Brewster's angle to 90 degrees. This range of angles allows the easy measurement of the change in lubricant thickness due to the interaction of the thin film head, the absolute lubricant thickness and degradation of the lubricant. It also allows the measurement of changes in carbon thickness and the absolute carbon thickness. The surface roughness can also be measured at any of the angles specified above. The present invention utilizes a first and second histogram representing disk properties (1) at two different time periods, (2) at two different locations on the disk, or (3) on two different disks.

    摘要翻译: 用于测量薄膜(碳)保护外涂层基本上布鲁斯特角角度的薄膜磁盘的润滑剂厚度和降解,碳磨损和碳厚度以及表面粗糙度的系统和方法。 其偏振可以在P或S偏振之间切换的聚焦光学光以与薄膜磁盘的表面成一定角度入射。 角度范围可以从普通到布鲁斯特角附近的零度以及从布鲁斯特角度大到90度的角度。 这种角度范围可以容易地测量润滑剂厚度的变化,这是由于薄膜头的相互作用,绝对润滑剂厚度和润滑剂的劣化。 它还允许测量碳厚度和绝对碳厚度的变化。 表面粗糙度也可以在上述任何角度测量。 本发明利用在两个不同时间段(2)在盘上的两个不同位置或(3)在两个不同盘上的表示盘属性(1)的第一和第二直方图。

    System and method for measuring thin film properties and analyzing
two-dimensional histograms using a symmetry operation
    14.
    发明授权
    System and method for measuring thin film properties and analyzing two-dimensional histograms using a symmetry operation 有权
    用于测量薄膜性质的系统和方法,并使用对称操作分析二维直方图

    公开(公告)号:US6130749A

    公开(公告)日:2000-10-10

    申请号:US376152

    申请日:1999-08-17

    IPC分类号: G01B11/06 G01B11/30 G01Q60/00

    CPC分类号: G01B11/065 G01B11/303

    摘要: A system and method for measuring lubricant thickness and degradation, carbon wear and carbon thickness, and surface roughness of thin film magnetic disks at angles that are not substantially Brewster's angle of the thin film (carbon) protective overcoat. A focused optical light whose polarization can be switched between P or S polarization is incident at an angle to the surface of the thin film magnetic disk. The range of angles can be from zero degrees from normal to near Brewster's angle and from an angle greater than Brewster's angle to 90 degrees. This range of angles allows the easy measurement of the change in lubricant thickness due to the interaction of the thin film head, the absolute lubricant thickness and degradation of the lubricant. It also allows the measurement of changes in carbon thickness and the absolute carbon thickness. The surface roughness can also be measured at any of the angles specified above. The present invention generates a histogram from the specular and scattered components of the reflected light, generates a centroid of the histogram and performs a symmetry operation to identify the characteristics of the thin film.

    摘要翻译: 用于测量薄膜(碳)保护外涂层基本上布鲁斯特角角度的薄膜磁盘的润滑剂厚度和降解,碳磨损和碳厚度以及表面粗糙度的系统和方法。 其偏振可以在P或S偏振之间切换的聚焦光学光以与薄膜磁盘的表面成一定角度入射。 角度范围可以从普通到布鲁斯特角附近的零度以及从布鲁斯特角度大到90度的角度。 这种角度范围可以容易地测量润滑剂厚度的变化,这是由于薄膜头的相互作用,绝对润滑剂厚度和润滑剂的劣化。 它还允许测量碳厚度和绝对碳厚度的变化。 表面粗糙度也可以在上述任何角度测量。 本发明根据反射光的镜面和散射分量产生直方图,产生直方图的质心,并执行对称操作以识别薄膜的特性。

    System and method for simultaneously measuring lubricant thickness and
degradation, thin film thickness and wear, and surface roughness
    15.
    发明授权
    System and method for simultaneously measuring lubricant thickness and degradation, thin film thickness and wear, and surface roughness 有权
    同时测量润滑剂厚度和降解,薄膜厚度和磨损以及表面粗糙度的系统和方法

    公开(公告)号:US6031615A

    公开(公告)日:2000-02-29

    申请号:US136897

    申请日:1998-08-19

    CPC分类号: G01B11/065 G01B11/303

    摘要: A system and method for measuring lubricant thickness and degradation, carbon wear and carbon thickness, and surface roughness of thin film magnetic disks at angles that are not substantially Brewster's angle of the thin film (carbon) protective overcoat. A focused optical light whose polarization can be switched between P or S polarization is incident at an angle to the surface of the thin film magnetic disk. The range of angles can be from zero degrees from normal to near Brewster's angle and from an angle greater than Brewster's angle to 90 degrees. This range of angles allows the easy measurement of the change in lubricant thickness due to the interaction of the thin film head, the absolute lubricant thickness and degradation of the lubricant. It also allows the measurement of changes in carbon thickness and the absolute carbon thickness. The surface roughness can also be measured at any of the angles specified above.

    摘要翻译: 用于测量薄膜(碳)保护外涂层基本上布鲁斯特角角度的薄膜磁盘的润滑剂厚度和降解,碳磨损和碳厚度以及表面粗糙度的系统和方法。 其偏振可以在P或S偏振之间切换的聚焦光学光以与薄膜磁盘的表面成一定角度入射。 角度范围可以从普通到布鲁斯特角附近的零度以及从布鲁斯特角度大到90度的角度。 这种角度范围可以容易地测量润滑剂厚度的变化,这是由于薄膜头的相互作用,绝对润滑剂厚度和润滑剂的劣化。 它还允许测量碳厚度和绝对碳厚度的变化。 表面粗糙度也可以在上述任何角度测量。

    Servo pattern characterization on magnetic disks
    17.
    发明授权
    Servo pattern characterization on magnetic disks 失效
    磁盘上的伺服模式表征

    公开(公告)号:US07397621B2

    公开(公告)日:2008-07-08

    申请号:US11432609

    申请日:2006-05-11

    IPC分类号: G11B5/02

    CPC分类号: G11B5/59627

    摘要: In one embodiment, a surface analyzer system comprises a radiation targeting assembly to target radiation onto a surface, a reflected radiation collecting assembly that collects radiation reflected from the surface, and a signal processing module. The signal processing module generates an image of magnetic characteristics of the magnetic disk, wherein the image comprises a plurality of servo sector arcs, locates a sample of points on a plurality of the servo sector arcs, fits a circle to the sample of points on each of the plurality of servo sector arcs, and determines at least one pivot-to-gap measurement from the radius of the circles.

    摘要翻译: 在一个实施例中,表面分析器系统包括将辐射瞄准到表面上的辐射瞄准组件,收集从表面反射的辐射的反射辐射收集组件和信号处理模块。 信号处理模块生成磁盘的磁特性的图像,其中图像包括多个伺服扇区弧,定位多个伺服扇区弧上的点样本,将圆适合于每个点上的点样本 并且从圆的半径确定至少一个枢轴对间隙测量。

    Servo pattern characterization on magnetic disks
    20.
    发明申请
    Servo pattern characterization on magnetic disks 失效
    磁盘上的伺服模式表征

    公开(公告)号:US20060215289A1

    公开(公告)日:2006-09-28

    申请号:US11432609

    申请日:2006-05-11

    IPC分类号: G11B5/02 G11B5/596

    CPC分类号: G11B5/59627

    摘要: In one embodiment, a surface analyzer system comprises a radiation targeting assembly to target radiation onto a surface, a reflected radiation collecting assembly that collects radiation reflected from the surface, and a signal processing module. The signal processing module generates an image of magnetic characteristics of the magnetic disk, wherein the image comprises a plurality of servo sector arcs, locates a sample of points on a plurality of the servo sector arcs, fits a circle to the sample of points on each of the plurality of servo sector arcs, and determines at least one pivot-to-gap measurement from the radius of the circles.

    摘要翻译: 在一个实施例中,表面分析器系统包括将辐射瞄准到表面上的辐射瞄准组件,收集从表面反射的辐射的反射辐射收集组件和信号处理模块。 信号处理模块生成磁盘的磁特性的图像,其中图像包括多个伺服扇区弧,定位多个伺服扇区弧上的点样本,将圆适合于每个点上的点样本 并且从圆的半径确定至少一个枢轴对间隙测量。