Electron beam pattern transfer device and method for aligning mask and
semiconductor wafer
    1.
    发明授权
    Electron beam pattern transfer device and method for aligning mask and semiconductor wafer 失效
    用于对准掩模和半导体晶片的电子束图案转移装置和方法

    公开(公告)号:US4469949A

    公开(公告)日:1984-09-04

    申请号:US374724

    申请日:1982-05-04

    CPC分类号: H01L21/30 H01J37/3045

    摘要: According to the invention an electron beam pattern transfer device with an improved alignment means is provided.A first and a second mark M.sub.1, M.sub.2 for alignment purposes are formed on the surface of the wafer and the wafer holder, respectively. The first mark M.sub.1 is formed on the wafer by conventional lithographic technique and the second mark M.sub.2 consists of a hole or a heavy metal, such as Ta or Ta.sub.2 O.sub.5. A third alignment mark M.sub.3 is provided on the photocathode mask having a position corresponding to M.sub.2 on the wafer holder and spaced a known distance L.sub.2 from an imaginary reference position M.sub.4 on the mask. The first step of the alignment process requires the detection of a relative distance L.sub.1 between the first and second marks M.sub.1, M.sub.2 by conventional detecting means, such as an optical measuring means. In the next step, the relative position of the photocathode mask and the wafer holder is adjusted so that the distance between the marks M.sub.2 and M.sub.3 is made substantially equal to the difference between the distance L.sub.1 and the known distance L.sub. 2.

    摘要翻译: 根据本发明,提供了具有改进的对准装置的电子束图案转印装置。 分别在晶片和晶片保持器的表面上形成用于对准目的的第一和第二标记M1,M2。 第一标记M1通过常规平版印刷技术在晶片上形成,第二标记M2由孔或重金属如Ta或Ta2O5组成。 第三对准标记M3设置在光电阴极掩模上,其具有对应于晶片保持器上的M2的位置,并且与掩模上的假想参考位置M4隔开已知距离L2。 对准处理的第一步骤需要通过诸如光学测量装置的常规检测装置检测第一和第二标记M1,M2之间的相对距离L1。 在下一步骤中,调整光电阴极掩模和晶片保持器的相对位置,使得标记M2和M3之间的距离基本上等于距离L1和已知距离L 2之间的差。

    Electron beam pattern transfer system having an autofocusing mechanism
    2.
    发明授权
    Electron beam pattern transfer system having an autofocusing mechanism 失效
    具有自动聚焦机构的电子束图案转印系统

    公开(公告)号:US4572956A

    公开(公告)日:1986-02-25

    申请号:US525419

    申请日:1983-08-22

    摘要: An electron beam pattern transfer system is disclosed which includes a photoelectric transducing mask disposed within a vacuum container and adapted to transfer a photoelectron beam pattern corresponding to a pattern of the mask onto a sample according to an amount of an incident light, a DC voltage generator connected to vary a voltage applied between the mask and the sample, and a focusing coil of a superconductive magnet for creating a magnetic field of a predetermined intensity between the mask and the sample. When a mask-to-sample distance and/or magnetic field intensity varies undesirably, the variation is electrically detected by detectors. In order to compensate for the defocusing of the photoelectron beam pattern on the sample due to the above-mentioned variation, a microprocessor automatically calculates an amount of correction with respect to the intensity of the electric field between the mask and the sample, on a real-time basis and supplies its control signal to the DC voltage generator.

    摘要翻译: 公开了一种电子束图案转印系统,其包括设置在真空容器内并适于根据入射光量将对应于掩模图案的光电子束图案转移到样品上的光电转换掩模,直流电压发生器 连接以改变施加在掩模和样品之间的电压,以及用于在掩模和样品之间产生预定强度的磁场的超导磁体的聚焦线圈。 当掩模到采样距离和/或磁场强度变化不期望时,变化由检测器电检测。 为了补偿由于上述变化而导致的样品上的光电子束图案的散焦,微处理器自动地计算相对于掩模和样品之间的电场强度的校正量,实际上 并将其控制信号提供给直流电压发生器。

    Focused ion beam deposition using TMCTS
    5.
    发明授权
    Focused ion beam deposition using TMCTS 失效
    使用TMCTS聚焦离子束沉积

    公开(公告)号:US5639699A

    公开(公告)日:1997-06-17

    申请号:US420153

    申请日:1995-04-11

    摘要: According to this invention, there is provided a method of repairing a bump defect of a structure obtained by forming a predetermined pattern on a substrate, having the steps of forming a first thin film consisting of a material different from that of the substrate on the substrate around the bump defect or close to the bump defect, forming a second thin film on the bump defect and the first thin film to flatten an upper surface of the second thin film, performing simultaneous removal of the bump defect and the thin films on an upper portion of the projecting defect and around the bump defect using a charged particle beam, and performing removal of the thin films left in the step of performing simultaneous removal. According to this invention, there is provided to a method of repairing a divot defect of a structure obtained by forming a predetermined pattern on a substrate, having the steps of burying a material in the divot defect and forming a projecting portion projecting from a substrate surface, covering a region including the projecting portion with flattening films consisting of a material different from that of the substrate to flatten an upper surface of the region, performing simultaneous removal of the projecting portion and the flattening films around the projecting portion using a charged particle beam, and performing removal of the flattening films left in the step of performing simultaneous removal.

    摘要翻译: 根据本发明,提供了一种修复通过在基板上形成预定图案而获得的结构的凸点缺陷的方法,该方法具有以下步骤:在基板上形成由不同于基板的材料构成的第一薄膜 在凸起缺陷附近或接近凸块缺陷的情况下,在凸起缺陷上形成第二薄膜和使第一薄膜平坦化第二薄膜的上表面,同时去除凸起缺陷和上部的薄膜 使用带电粒子束的突出缺陷的一部分和凸起缺陷周围,并且执行在执行同时移除的步骤中留下的薄膜的去除。 根据本发明,提供了一种修复通过在基板上形成预定图案而获得的结构的凹陷缺陷的方法,该方法具有以下步骤:将材料埋在凹陷缺陷中并形成从基板表面突出的突出部分 使用由与基板不同的材料构成的平坦化膜覆盖包括突出部分的区域,以平坦化该区域的上表面,使用带电粒子束同时移除突出部分周围的突出部分和平坦化膜 并且执行在执行同时去除的步骤中留下的平坦化膜的去除。

    Charged beam drawing apparatus
    6.
    发明授权
    Charged beam drawing apparatus 失效
    充电光束拉制装置

    公开(公告)号:US5523576A

    公开(公告)日:1996-06-04

    申请号:US213041

    申请日:1994-03-15

    IPC分类号: H01J37/304 G01N23/225

    摘要: In a charged beam drawing apparatus for drawing a desired pattern on a sample by deflecting a charged beam on the sample while continuously moving a stage on which the sample is placed, a mark having a line-and-space pattern, in which a plurality of heavy metal marks each having a width equal to a side of the charged beam are arranged with spaces each equal to the width between them, is formed on the sample. The charged beam is radiated onto the mark while the position of the beam is fixed, and at the same time the stage is continuously moved in the longitudinal direction of the mark, thereby detecting a reflected beam from the mark. On the basis of the signal of the detected reflected beam, a relative vibration during the continuous movement of the stage is measured. This makes it possible to measure the relative vibration produced by the continuous movement of the stage, resulting in an increase in drawing accuracy.

    摘要翻译: 在一种带电波束牵伸装置中,用于通过使样品上的带电波束偏转,同时连续移动放置样品的载物台,从而在样品上绘制所需图案,具有线间距图案的标记,其中多个 在样品上形成各自具有等于带电束侧的宽度的重金属标记,每个间隔均等于它们之间的宽度。 充电光束在光束的位置被固定的同时被放射到标记上,并且同时在标记的纵向方向上连续地移动平台,从而从标记检测反射光束。 基于检测到的反射光束的信号,测量在该阶段的连续运动期间的相对振动。 这使得可以测量由台的连续运动产生的相对振动,导致拉拔精度的提高。

    Electron beam type pattern transfer apparatus
    8.
    发明授权
    Electron beam type pattern transfer apparatus 失效
    电子束式图案转印装置

    公开(公告)号:US4366383A

    公开(公告)日:1982-12-28

    申请号:US165618

    申请日:1980-07-03

    摘要: An electron beam type pattern transfer apparatus has a photoelectric mask and a sample in a vacuum container made of non-magnetic material. The photoelectric mask is adapted to receive an ultraviolet ray from a light source and emit photoelectrons corresponding to a predetermined transfer pattern and the sample is disposed in parallel with the photoelectric mask with a predetermined distance left therebetween and illuminated with the photoelectrons to form a resist image thereon which corresponds to the transfer pattern. A power source for applying a voltage for accelerating the photoelectrons emitted is connected between the photoelectric mask and the sample. A pair of focusing magnets are disposed around the axis of the vacuum container such that they are located one at one outer side and one in an opposite outer side of the vacuum container to permit a vertical magnetic field to be created between the photoelectric mask and the sample. The focusing magnets have superconductive coils and are driven in a persistent mode.

    摘要翻译: 电子束型图案转印装置在由非磁性材料制成的真空容器中具有光电掩模和样品。 光电掩模适于从光源接收紫外线并发射对应于预定转印图案的光电子,并且将样品与光电掩模平行放置并保持在预定距离处并用光电子照射以形成抗蚀剂图像 对应于转印图案。 用于施加用于加速发射的光电子的电压的电源连接在光电掩模和样品之间。 一对聚焦磁铁设置在真空容器的轴线周围,使得它们位于真空容器的一个外侧和一个在相对的外侧中,从而允许在光电面罩和 样品。 聚焦磁体具有超导线圈并以持续模式驱动。

    Fixed-slit type photoelectric microscope
    9.
    发明授权
    Fixed-slit type photoelectric microscope 失效
    固定狭缝型光电显微镜

    公开(公告)号:US4560278A

    公开(公告)日:1985-12-24

    申请号:US513452

    申请日:1983-07-13

    CPC分类号: G01B9/04 G02B21/00 G02B26/04

    摘要: A fixed-slit type photoelectric microscope comprises an irradiation system for irradiating a linear pattern with light beam, an objective for forming an image of the linear pattern, a single slit disposed at a point conjugate to the linear pattern with respect to the objective, a photoelectric conversion element for converting the light beam from the slit into an electrical signal, a rectifying circuit for rectifying an electrical signal from the photoelectric conversion element, and an indicator for visualizing the rectified signal. The irradiation system generates a pair of polarized light beams with planes of polarization orthogonal to each other and alternately illuminates the linear pattern with the pair of polarized light beams at fixed periods. For deflecting the pair of polarized light beams from the linear pattern in different directions, an optical deflecting element is provided between the linear pattern and the slit. Different portions of the slit are illuminated by the pair of polarized light beams deflected by the optical deflecting elements.

    摘要翻译: 固定狭缝型光电显微镜包括用于用光束照射线性图案的照射系统,用于形成线状图案的图像的目标,设置在与该物镜相对应的线状图案的点处的单个狭缝, 用于将来自狭缝的光束转换成电信号的光电转换元件,用于对来自光电转换元件的电信号进行整流的整流电路和用于可视化整流信号的指示器。 照射系统产生一对具有彼此正交的偏振平面的偏振光束,并且以固定的周期以一对偏振光束交替地照射线状图案。 为了沿着不同的方向偏转来自线状图案的一对偏振光束,在线状图案和狭缝之间设置有光学偏转元件。 狭缝的不同部分由被光学偏转元件偏转的一对偏振光束照射。

    Electrostatic chuck plate
    10.
    发明授权
    Electrostatic chuck plate 失效
    静电吸盘

    公开(公告)号:US4480284A

    公开(公告)日:1984-10-30

    申请号:US428341

    申请日:1982-09-29

    IPC分类号: B23Q3/15 H01L21/683 H02N13/00

    CPC分类号: H01L21/6831 H01L21/6833

    摘要: An electrostatic chuck plate comprises an electrode plate made of electrically conductive material and a dielectric layer formed on one surface of the electrode plate by flame-spraying dielectric material. The surface region of the dielectric layer is impregnated with plastic material, and the surface of the dielectric layer is smooth and flat. A sample is electrostatically attracted toward the electrode plate and is thus held on the smooth and flat surface of the dielectric layer.

    摘要翻译: 静电卡盘包括由导电材料制成的电极板和通过火焰喷涂介电材料形成在电极板的一个表面上的电介质层。 电介质层的表面区域用塑料材料浸渍,电介质层的表面光滑平坦。 样品被静电吸引到电极板上,因此被保持在电介质层的光滑平坦的表面上。