Specimen Inspection Equipment and How to Make the Electron Beam Absorbed Current Images
    1.
    发明申请
    Specimen Inspection Equipment and How to Make the Electron Beam Absorbed Current Images 有权
    标本检测设备和如何使电子束吸收当前图像

    公开(公告)号:US20100116986A1

    公开(公告)日:2010-05-13

    申请号:US12691331

    申请日:2010-01-21

    IPC分类号: G01N23/225

    摘要: An object of the present invention is to obtain a clear absorbed current image without involving the difference in gain of amplifier between inputs, from absorbed currents detected by using a plurality of probes and to improve measurement efficiency.In the present invention, a plurality of probes are brought in contact with a specimen. While irradiating the specimen with an electron beam, currents flowing in the probes are measured. Signals from at least two probes are input to a differential amplifier. An output of the differential amplifier is amplified. On the basis of the amplified output and scanning information of the electron beam, an absorbed current image is generated. According to the invention, a clear absorbed current image can be obtained without involving the difference in gain of amplifier between inputs. Thus, measurement efficiency in a failure analysis of a semiconductor device can be improved.

    摘要翻译: 本发明的目的是获得清晰的吸收电流图像,而不涉及放大器在输入之间的增益差异,从吸收的电流通过使用多个探针检测并提高测量效率。 在本发明中,使多个探针与试样接触。 在用电子束照射样品的同时,测量在探针中流动的电流。 至少两个探头的信号被输入到差分放大器。 差分放大器的输出被放大。 基于电子束的放大输出和扫描信息,产生吸收的当前图像。 根据本发明,可以获得清晰的吸收电流图像而不涉及放大器在输入之间的增益差。 因此,可以提高半导体器件的故障分析中的测量效率。

    Method for control of tape tension between the reels and apparatus
therefor
    2.
    发明授权
    Method for control of tape tension between the reels and apparatus therefor 失效
    用于控制卷轴和其设备之间的带张力的方法

    公开(公告)号:US5039027A

    公开(公告)日:1991-08-13

    申请号:US430008

    申请日:1989-11-01

    IPC分类号: G11B15/43 G11B15/46 G11B15/56

    CPC分类号: G11B15/56 G11B15/43 G11B15/46

    摘要: This invention relates to tape tension control in a device which has a capstan disposed between a supply reel and which transport a tape wound around the supply reel to the take-up reel. While the tape, mounted on the reels, is running, the tape speed is varied greatly, and during this speed change period, a tape tension variation between the supply reel and the capstan and a tape tension variation between the capstan and the take-up reel are found. From those tape tension variations, ratios of moments of inertia of the reels with the tape thereon to the tape radii are found, and according to the values of the ratios, the gains of the loops of the tension control system is adjusted.

    摘要翻译: 本发明涉及一种装置中的带张力控制,该装置具有设置在供应卷轴之间的绞盘,并且将卷绕在供带盘上的带传送到卷带盘。 当安装在卷轴上的胶带正在运行时,胶带速度变化很大,并且在该速度变化期间,供带盘和绞盘之间的带张力变化以及绞盘和卷取机之间的带张力变化 卷轴被找到。 根据这些胶带张力变化,可以发现卷轴与胶带之间的惯性力矩与带子半径的比率,并且根据比率值调节张力控制系统的回路的增益。

    Specimen inspection equipment and how to make electron beam absorbed current images
    3.
    发明授权
    Specimen inspection equipment and how to make electron beam absorbed current images 有权
    试样检测设备和如何使电子束吸收当前图像

    公开(公告)号:US07663104B2

    公开(公告)日:2010-02-16

    申请号:US12038079

    申请日:2008-02-27

    摘要: An object of the present invention is to obtain a clear absorbed current image without involving the difference in gain of amplifier between inputs, from absorbed currents detected by using a plurality of probes and to improve measurement efficiency.In the present invention, a plurality of probes are brought in contact with a specimen. While irradiating the specimen with an electron beam, currents flowing in the probes are measured. Signals from at least two probes are input to a differential amplifier. An output of the differential amplifier is amplified. On the basis of the amplified output and scanning information of the electron beam, an absorbed current image is generated. According to the invention, a clear absorbed current image can be obtained without involving the difference in gain of amplifier between inputs. Thus, measurement efficiency in a failure analysis of a semiconductor device can be improved.

    摘要翻译: 本发明的目的是获得清晰的吸收电流图像,而不涉及放大器在输入之间的增益差异,从吸收的电流通过使用多个探针检测并提高测量效率。 在本发明中,多个探针与试样接触。 在用电子束照射样品的同时,测量在探针中流动的电流。 至少两个探头的信号被输入到差分放大器。 差分放大器的输出被放大。 基于电子束的放大输出和扫描信息,产生吸收的当前图像。 根据本发明,可以获得清晰的吸收电流图像而不涉及放大器在输入之间的增益差。 因此,可以提高半导体器件的故障分析中的测量效率。

    Specimen inspection equipment and how to make the electron beam absorbed current images
    4.
    发明授权
    Specimen inspection equipment and how to make the electron beam absorbed current images 有权
    试样检查设备和如何使电子束吸收当前图像

    公开(公告)号:US08178840B2

    公开(公告)日:2012-05-15

    申请号:US12691331

    申请日:2010-01-21

    IPC分类号: G01N23/225 H01J37/28

    摘要: An object of the present invention is to obtain a clear absorbed current image without involving the difference in gain of amplifier between inputs, from absorbed currents detected by using a plurality of probes and to improve measurement efficiency.In the present invention, a plurality of probes are brought in contact with a specimen. While irradiating the specimen with an electron beam, currents flowing in the probes are measured. Signals from at least two probes are input to a differential amplifier. An output of the differential amplifier is amplified. On the basis of the amplified output and scanning information of the electron beam, an absorbed current image is generated. According to the invention, a clear absorbed current image can be obtained without involving the difference in gain of amplifier between inputs. Thus, measurement efficiency in a failure analysis of a semiconductor device can be improved.

    摘要翻译: 本发明的目的是获得清晰的吸收电流图像,而不涉及放大器在输入之间的增益差异,从吸收的电流通过使用多个探针检测并提高测量效率。 在本发明中,使多个探针与试样接触。 在用电子束照射样品的同时,测量在探针中流动的电流。 至少两个探头的信号被输入到差分放大器。 差分放大器的输出被放大。 基于电子束的放大输出和扫描信息,产生吸收的当前图像。 根据本发明,可以获得清晰的吸收电流图像而不涉及放大器在输入之间的增益差。 因此,可以提高半导体器件的故障分析中的测量效率。

    Specimen Inspection Equipment and How to Make the Electron Beam Absorbed Current Images
    5.
    发明申请
    Specimen Inspection Equipment and How to Make the Electron Beam Absorbed Current Images 有权
    标本检测设备和如何使电子束吸收当前图像

    公开(公告)号:US20080203297A1

    公开(公告)日:2008-08-28

    申请号:US12038079

    申请日:2008-02-27

    IPC分类号: G01N23/00

    摘要: An object of the present invention is to obtain a clear absorbed current image without involving the difference in gain of amplifier between inputs, from absorbed currents detected by using a plurality of probes and to improve measurement efficiency.In the present invention, a plurality of probes are brought in contact with a specimen. While irradiating the specimen with an electron beam, currents flowing in the probes are measured. Signals from at least two probes are input to a differential amplifier. An output of the differential amplifier is amplified. On the basis of the amplified output and scanning information of the electron beam, an absorbed current image is generated. According to the invention, a clear absorbed current image can be obtained without involving the difference in gain of amplifier between inputs. Thus, measurement efficiency in a failure analysis of a semiconductor device can be improved.

    摘要翻译: 本发明的目的是获得清晰的吸收电流图像,而不涉及放大器在输入之间的增益差异,从吸收的电流通过使用多个探针检测并提高测量效率。 在本发明中,使多个探针与试样接触。 在用电子束照射样品的同时,测量在探针中流动的电流。 至少两个探头的信号被输入到差分放大器。 差分放大器的输出被放大。 基于电子束的放大输出和扫描信息,产生吸收的当前图像。 根据本发明,可以获得清晰的吸收电流图像而不涉及放大器在输入之间的增益差。 因此,可以提高半导体器件的故障分析中的测量效率。