Exposure system
    1.
    发明授权
    Exposure system 失效
    曝光系统

    公开(公告)号:US5276725A

    公开(公告)日:1994-01-04

    申请号:US996508

    申请日:1992-12-14

    IPC分类号: G03F7/20 G21K5/00

    CPC分类号: G03F7/702

    摘要: An exposure apparatus usable with a mask having a pattern and a wafer having a radiation-sensitive surface layer, for transferring with a radiation energy beam the pattern of the mask to the wafer, is disclosed. The apparatus includes a mask supporting member for supporting the mask; a wafer supporting member for supporting the wafer; a reflective member having a reflection surface and an indication pattern, the reflective member being supported by one of the mask supporting member and the wafer supporting member; an arrangement for projecting a beam, which is thinner than the radiation energy beam and which advances along or about the axis of the radiation energy beam, upon the reflective member; a device for observing a positional relationship between the indication pattern and a spot formed by projection of the thinner beam upon the reflective member; and a device for correcting a relationship between the indication pattern and the spot, on the basis of the observation.

    摘要翻译: 公开了一种可用于具有图案的掩模和具有辐射敏感表面层的晶片的曝光装置,用于将辐射能量束将掩模的图案转印到晶片。 该装置包括用于支撑面罩的面罩支撑构件; 用于支撑晶片的晶片支撑构件; 反射构件,其具有反射面和指示图案,所述反射构件由所述面罩支撑构件和所述晶片支撑构件中的一个支撑; 用于投射比辐射能量束更薄并且沿辐射能量束的轴线或围绕辐射能量束的轴线前进的光束的反射构件的布置; 用于观察指示图案与通过将较薄光束投射在反射构件上形成的光斑之间的位置关系的装置; 以及用于基于观察来校正指示图案与斑点之间的关系的装置。

    LIGHT SOURCE DEVICE AND OPTICAL COHERENCE TOMOGRAPHY APPARATUS
    6.
    发明申请
    LIGHT SOURCE DEVICE AND OPTICAL COHERENCE TOMOGRAPHY APPARATUS 审中-公开
    光源设备和光学相干计算机设备

    公开(公告)号:US20130027714A1

    公开(公告)日:2013-01-31

    申请号:US13554800

    申请日:2012-07-20

    IPC分类号: G01B9/02 H01S5/00 H01S3/10

    摘要: A light source device capable of varying a light oscillation wavelength includes a plurality of optical gain media, a dispersing element, and a wavelength selecting element. The optical gain media amplify light, and have gain wavelength bands that partially overlap and different maximum gain wavelengths. The dispersing element is formed of a single element. Each of light beams emitted from the optical gain media is incident on the dispersing element. The dispersing element disperses the light beams emitted from the optical gain media into light beams of different wavelengths. The wavelength selecting element selects a light beam of a predetermined wavelength from the light beams of different wavelengths into which the light beams emitted from the optical gain media are dispersed by the dispersing element. The light source device emits the light beam of the predetermined wavelength selected by the wavelength selecting element.

    摘要翻译: 能够改变光振荡波长的光源装置包括多个光学增益介质,分散元件和波长选择元件。 光增益介质放大光,并且具有部分重叠的增益波长带和不同的最大增益波长。 分散元件由单一元件形成。 从光学增益介质发射的每束光束入射到分散元件上。 分散元件将从光学增益介质发射的光束分散成不同波长的光束。 波长选择元件从由光学增益介质发射的光束被分散元件分散的不同波长的光束中选择预定波长的光束。 光源装置发射由波长选择元件选择的预定波长的光束。

    Surface position detecting system and projection exposure apparatus
using the same
    7.
    发明授权
    Surface position detecting system and projection exposure apparatus using the same 失效
    表面位置检测系统和使用其的投影曝光装置

    公开(公告)号:US5834767A

    公开(公告)日:1998-11-10

    申请号:US790798

    申请日:1997-01-30

    CPC分类号: G03F9/7026

    摘要: A detecting system for detecting a surface position of an object, includes a light source, a first grating having a light collecting function, wherein the first grating is illuminated with light from the light source, a second grating having a light collecting function, a first optical system for imaging the first grating onto the object in a direction oblique to the surface of the object, a second optical system for re-imaging the image of the first grating, on the surface of the object, onto the second grating, wherein a moire fringe is produced by the second grating and the re-imaged image of the first grating, and a photodetector for detecting a position of a converged point of convergent light as produced by the moire fringe, wherein the surface position information of the object is determined on the basis of information related to the converged point position as detected by the photodetector.

    摘要翻译: 一种用于检测物体的表面位置的检测系统,包括光源,具有聚光功能的第一光栅,其中第一光栅被来自光源的光照射,具有光收集功能的第二光栅,第一光栅 光学系统,用于将物体上的第一光栅成像到物体表面上的方向上;第二光学系统,用于将物体表面上的第一光栅的图像重新成像到第二光栅上,其中, 莫尔条纹由第二光栅和第一光栅的再成像图像产生,以及光电检测器,用于检测由莫尔条纹产生的会聚光的会聚点的位置,其中确定物体的表面位置信息 基于与由光检测器检测到的会聚点位置有关的信息。

    Best focus determining method
    8.
    发明授权
    Best focus determining method 失效
    最佳焦点确定方法

    公开(公告)号:US5750294A

    公开(公告)日:1998-05-12

    申请号:US685464

    申请日:1996-07-24

    摘要: Disclosed is a method of determining a best focus position or best exposure amount of a projection lens in an arrangement wherein a reticle is placed on a plane perpendicular to an optical axis of the projection lens, wherein a pattern having periodicity in a predetermined direction is provided on a surface of the reticle, wherein the pattern is transferred to a photosensitive substrate by the projection lens to form a printed pattern thereon. The method includes providing the pattern by using a plurality of zigzag openings of a constant line width, extending in a direction perpendicular to the predetermined direction and being arrayed with a constant periodicity along that direction, transferring the pattern to the photosensitive substrate sequentially with different focus positions to form plural printed patterns thereon, imaging the printed patterns upon an image pickup surface of photoelectrically converting means; calculating, from an imagewise signal produced by the photoelectrically converting means, information related to one frequency component of zigzag lines, constituting an outline of an image of the zigzag opening, and determining the best focus position on the basis of the information.

    摘要翻译: 公开了一种确定投影透镜的最佳聚焦位置或最佳曝光量的方法,其中将掩模版放置在垂直于投影透镜的光轴的平面上,其中提供了沿预定方向具有周期性的图案 在掩模版的表面上,其中通过投影透镜将图案转印到感光基板上,以在其上形成印刷图案。 该方法包括通过使用在垂直于预定方向的方向上延伸的恒定线宽度的多个之字形开口来提供图案,并沿着该方向以恒定的周期排列,以不同的焦点依次传送图案到感光基片 在其上形成多个印刷图案的位置,将印刷图案成像在光电转换装置的图像拾取表面上; 根据由光电转换装置产生的成像信号,计算与Z字形线的一个频率分量有关的信息,构成Z字形开口的图像的轮廓,并根据该信息确定最佳对焦位置。

    Apparatus and method of detecting positional relationship using a
weighted coefficient
    10.
    发明授权
    Apparatus and method of detecting positional relationship using a weighted coefficient 失效
    使用加权系数检测位置关系的装置和方法

    公开(公告)号:US5340992A

    公开(公告)日:1994-08-23

    申请号:US978524

    申请日:1992-11-18

    IPC分类号: G03F9/00 G01N21/86 G01V9/04

    CPC分类号: G03F9/7076

    摘要: A device for detecting a relative positional relationship between first and second objects is disclosed. The device includes light source for projecting light to the first and second objects; photodetecting system for detecting light from one of the first and second objects illuminated by the light source system, the photodetecting system having a light receiving surface and producing a signal corresponding to the light intensity at each point on the light receiving surface; and position detecting system for detecting the relative position of the first and second objects, on the basis of signals from the photodetecting system, wherein the position detecting system is arranged to adjust signals corresponding to different points on the light receiving surface of the photodetecting system, by using different weight coefficients and to detect the relative position of the first and second objects on the basis of the adjusted signals.

    摘要翻译: 公开了一种用于检测第一和第二物体之间的相对位置关系的装置。 该装置包括用于将光投射到第一和第二物体的光源; 用于检测来自由光源系统照射的第一和第二物体之一的光的光电检测系统,所述光电检测系统具有光接收表面,并且产生与所述光接收表面上的每个点处的光强度相对应的信号; 以及位置检测系统,用于基于来自光电检测系统的信号检测第一和第二物体的相对位置,其中位置检测系统被布置成调节与光检测系统的光接收表面上的不同点对应的信号, 通过使用不同的权重系数,并且基于经调整的信号来检测第一和第二对象的相对位置。