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    • 2. 发明授权
    • Method and apparatus for alignment
    • 对准方法和装置
    • US4777641A
    • 1988-10-11
    • US918004
    • 1986-10-14
    • Akira InagakiYukio KemboRyuichi FunatsuAsahiro KuniKeiichi OkamotoYoshihiro Komeyama
    • Akira InagakiYukio KemboRyuichi FunatsuAsahiro KuniKeiichi OkamotoYoshihiro Komeyama
    • G02B7/00G03F9/00H01L21/027H01L21/30H01L21/67H01L21/68G21K5/00
    • G03F9/70
    • A method and apparatus for alignment for use in X-ray exposure or the like wherein a mask is provided having a formation of an alignment pattern made up of at least one linear segment formed in a peripheral section of the mask and a wafer is provided having a formation of an alignment pattern formed in a same direction as the alignment pattern of the mask and made up of linear segments. An illuminating arrangement illuminates a light to the mask alignment pattern along a direction inclined to the alignment direction and the mask alignment pattern and the wafer alignment pattern are imaged and transformed into a video signal. An A/D converts the video signal into a digital signal and stores the digital signal in a memory. The digital video signal is read out from the memory and averaged in a mask alignment pattern by removing a shadow portion caused by the mask alignment pattern and additionally averaged in a wafer alignment pattern area with an averaged wafer alignment pattern signal and an averaged wafer alignment pattern signal being provided. Relative displacement between the mask and the wafer is detected from the averaged mask alignment pattern signal and the averaged wafer alignment pattern signal and the mask and wafer are aligned by moving at least one of the mask and wafer so that displacement between the mask and the wafer does not exist.
    • 一种用于X射线曝光等的对准用的方法和装置,其中提供具有由形成在掩模的周边部分中的至少一个线性部分构成的取向图案的掩模和晶片,其具有: 形成与由掩模的对准图形相同的方向形成并由直线段构成的对准图案。 照明装置沿着对准方向倾斜的方向照射到掩模对准图案,并且将掩模对准图案和晶片对准图案成像并变换为视频信号。 A / D将视频信号转换为数字信号,并将数字信号存储在存储器中。 从存储器中读出数字视频信号,并通过去除由掩模对准图形引起的阴影部分并以平均的晶片对准图案信号和平均的晶片对准图案在晶片对准图案区域中平均化,以掩模对准图案平均化 提供信号。 从平均的掩模对准图案信号中检测掩模和晶片之间的相对位移,并且通过移动掩模和晶片中的至少一个来对准平均的晶片对准图案信号并且掩模和晶片,使得掩模和晶片之间的位移 不存在。
    • 3. 发明授权
    • Projection alignment method and apparatus
    • 投影对准方法及装置
    • US4708484A
    • 1987-11-24
    • US789778
    • 1985-10-21
    • Yoshihiro KomeyamaYukio KemboAsahiro KuniRyuuichi FunatsuAkira InagakiMinoru IkedaKeiichi Okamoto
    • Yoshihiro KomeyamaYukio KemboAsahiro KuniRyuuichi FunatsuAkira InagakiMinoru IkedaKeiichi Okamoto
    • G01R31/26G03F9/00H01L21/30G01B11/26
    • G03F9/7023G03F9/7049G03F9/7076
    • The present invention relates, in a projection aligner wherein a mask and a wafer are held proximate to one another and wherein a circuit pattern depicted on the mask is transferred onto the wafer, to a method of detecting the respective positions of the mask and the wafer for the relative positioning between the mask and the wafer. To the end of dispensing with the withdrawal of a microscope objective in such a way that the objective of a microscope for detecting the mask and the wafer and projection light, for example, an X-ray, are prevented from interfering, thereby to achieve the enhancement of throughput and to permit the detection of the positions of the mask and the wafer even during projection, the present invention consists in that the objective of the microscope is inclined with respect to a perpendicular to the plane of the mask or the plane of the wafer being a plane to-be-detected, so as not to interfere with the projection light, for example, the X-ray, whereby the circuit pattern can be transferred while the relative positions of the mask and the wafer are being detected.
    • 本发明涉及一种投影对准器,其中掩模和晶片彼此靠近地保持,并且其中将掩模上描绘的电路图案转印到晶片上,以检测掩模和晶片的相应位置的方法 用于掩模和晶片之间的相对定位。 以这样的方式分配显微镜物镜的取出的结束,使得防止用于检测掩模和晶片的显微镜和例如X射线的投射光的目的被干扰,从而实现 增加吞吐量并且即使在投影期间也能够检测掩模和晶片的位置,本发明的目的在于,显微镜的目的是相对于掩模的平面垂直于或平面的倾斜 晶片是要被检测的平面,以便不干涉诸如X射线的投影光,由此可以在检测掩模和晶片的相对位置的同时传输电路图案。
    • 10. 发明授权
    • Projection type exposure method and apparatus
    • 投影式曝光方法及装置
    • US5247329A
    • 1993-09-21
    • US813002
    • 1991-12-24
    • Yoshitada OshidaToshiei KurosakiAkira InagakiYoshihiko Aiba
    • Yoshitada OshidaToshiei KurosakiAkira InagakiYoshihiko Aiba
    • G03F1/44G03F7/20G03F7/207G03F9/00H01L21/027H01L21/30
    • G03F9/7023G03F7/70241
    • A projection type exposure apparatus and method comprising an exposure illumination light source, an exposure illumination system, a mask or reticle on which an original pattern to be projected on the exposed matter is drawn, an optical projection system, a stage for retaining the exposed matter and a mechanism for finely moving the stage along the exposure optical axis. The apparatus is provided with an exposure detection pattern area on the mask, detection illumination means for projecting on the exposure detection pattern area a light ray which is the same or almost the same in wavelength as exposure light having a desired directivity, exposure detection means for detecting the transmitted or reflected light diffracted by 1 degree after the light carrying the image formed on the exposed matter by the light passed through the above-noted optical projection system after projection by the detection illumination means onto the exposure pattern and then diffracted goes in reverse through the above-noted optical projection system and forms an image again on the exposure pattern on the above-noted mask and a control circuit for driving and controlling the above-noted fine movement mechanism by using the signal obtained by the exposure detection means.
    • 一种投影式曝光装置和方法,包括曝光照明光源,曝光照明系统,掩模或掩模版,其上将要投射在暴露物体上的原始图案被拉出,光学投影系统,用于保持暴露物质的台 以及用于沿着曝光光轴精细地移动台的机构。 该设备在掩模上设置曝光检测图案区域,检测照明装置用于在曝光检测图案区域上投射与具有所需方向性的曝光光相同或几乎相同的波长的光线,曝光检测装置 在通过检测照明装置投影到曝光图案上之后,在通过上述光学投影系统的光在携带在曝光物体上形成的图像的光之后,将被发射或反射的光衍射1度,然后衍射反向 通过上述光学投影系统并在上述掩模上的曝光图案上再次形成图像,以及通过使用由曝光检测装置获得的信号来驱动和控制上述微动机构的控制电路。