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    • 55. 发明授权
    • Method and apparatus for measuring holding distortion
    • 测量保持失真的方法和装置
    • US07342666B2
    • 2008-03-11
    • US11258955
    • 2005-10-27
    • Nobuaki UekiKoji Otsuka
    • Nobuaki UekiKoji Otsuka
    • G01B11/02G01L1/24
    • G03F1/84G01B11/2441
    • There are carried out a first measurement operation for measuring the shape of a front surface of a sample held in a held state, a second measurement operation for measuring the shape of a back surface of the sample held in the same state, and a third measurement operation for measuring the shape of the back surface of the sample held so as to cause inverse distortion. First data are acquired on the basis of the front surface shape data obtained through the first measurement operation and the back surface shape data obtained through the second measurement operation. Second data are obtained on the basis of the front surface shape data obtained through the first measurement operation and the back surface shape data obtained through the third measurement operation. Holding distortion is determined on the basis of the first and second data.
    • 进行用于测量保持在保持状态的样品的正面的形状的第一测量操作,用于测量保持在相同状态的样品的背面的形状的第二测量操作和第三测量 用于测量保持的样品的背面的形状以产生反变形的操作。 基于通过第一测量操作获得的前表面形状数据和通过第二测量操作获得的背面形状数据获取第一数据。 基于通过第一测量操作获得的前表面形状数据和通过第三测量操作获得的背面形状数据获得第二数据。 基于第一和第二数据确定保持失真。
    • 56. 发明授权
    • Method and device for holding subject and measuring instrument equipped with the device
    • 用于安装装置的物体和测量仪器的方法和装置
    • US07340962B2
    • 2008-03-11
    • US11256956
    • 2005-10-25
    • Nobuaki Ueki
    • Nobuaki Ueki
    • G01N3/02
    • G03F7/70825G03F7/70591G03F7/70783
    • A subject having a test surface is held by a holder so that an axis line of the test surface intersects the direction of gravity and applied with a load, from above and beneath, that is optimized for accurate measurement of surface profile of the test surface. For optimization of the load, the test surface is applied with variable exploratory load strong enough to cause bending deformation in the test surface and a linear-functional relationship existing between more than two different exploratory loads and sizes of surface deformation caused with the different exploratory loads is derived. With the aid of linear-functional relationship, a load that induces the subject to cause surface deformation less than a predetermined size of surface deformation admissible, for example, as a manufacturing en-or is used as an optimized load.
    • 具有测试表面的受试者由保持器保持,使得测试表面的轴线与重力方向相交,并且从上下方向施加用于精确测量测试表面的表面轮廓的优化的负载。 为了优化负载,试验表面采用足够强的可变探测载荷,在试验表面引起弯曲变形,并存在两个不同探测载荷之间的线性函数关系和不同探测载荷引起的表面变形尺寸 被派生。 借助于线性函数关系,引起受试者引起表面变形小于预定尺寸的表面变形的负载可允许,例如作为制造工具或被用作优化的负载。
    • 58. 发明申请
    • Light intensity ratio adjustment filter for an interferometer, interferometer, and light interference measurement method
    • 用于干涉仪,干涉仪和光干涉测量方法的光强比调整滤波器
    • US20060066874A1
    • 2006-03-30
    • US11204152
    • 2005-08-16
    • Nobuaki Ueki
    • Nobuaki Ueki
    • G01B11/02
    • G01B9/02058G01B9/02057G01J3/0213G01J2009/0292
    • The light intensity ratio adjustment filter is placed between the reference surface and the sample surface of the interferometer. This light intensity ratio adjustment filter has a light intensity ratio adjustment film including an optical reflection-absorption layer and a dielectric anti-reflection layer on the surface of a transparent substrate made of glass on the sample side, and an optical anti-reflection film on the reference surface side, and acts so as to reflect part of the incident light from the surface opposite the reference surface, and after absorbing part of the remaining light, transmit the remainder towards the sample, and furthermore, absorb part of the light returned from the sample while controlling reflection, and transmit the remainder in the direction of the reference surface as the sample light.
    • 光强比调节滤光器被放置在干涉仪的参考表面和样品表面之间。 该光强度比调节滤光器具有在样品侧的由玻璃制成的透明基板的表面上具有光反射吸收层和介电抗反射层的光强度比调节膜,以及光学抗反射膜 参考表面侧,并且用于反射来自与参考表面相对的表面的入射光的一部分,并且在吸收剩余光的一部分之后,将剩余部分透射到样品,此外,吸收部分从基准表面返回的光 样本,同时控制反射,并将剩余部分沿参考表面的方向作为样本光传输。
    • 60. 发明授权
    • Moiré grating noise eliminating method
    • 莫尔光栅噪声消除法
    • US06867871B2
    • 2005-03-15
    • US10388092
    • 2003-03-14
    • Nobuaki Ueki
    • Nobuaki Ueki
    • G01B11/24G01B11/25G01B11/30
    • G01B11/254
    • A moving distance of a moiré grating in y direction is set with respect to a grating pitch of a moiré grating, whereas an imaging magnification of imaging means is set according to the relationship between the pixel pitch of an image pickup device in the imaging means and the size of grating pitch when forming an image on the image pickup device. An image of moiré fringes is captured each time when the moiré grating is moved by a predetermined distance in the y direction, so as to yield a predetermined number of y-direction positional moiré fringe images, which are then averaged. According to thus obtained average moiré fringe image, shape information of a surface to be inspected is determined.
    • 相对于莫尔光栅的光栅间距设置莫尔光栅在y方向上的移动距离,而成像装置的成像倍率根据成像装置中的图像拾取装置的像素间距与成像装置的像素间距之间的关系而设定, 在图像拾取装置上形成图像时的光栅间距的大小。 当莫尔光栅在y方向上移动预定距离时每次捕获莫尔条纹的图像,以产生预定数量的y方向位置的莫尔条纹图像,然后将其平均。 根据这样获得的平均莫尔条纹图像,确定待检查表面的形状信息。