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    • 1. 发明申请
    • METHOD AND APPARATUS FOR MEASURING SURFACE PROPERTIES
    • 测量表面特性的方法和装置
    • US20110062964A1
    • 2011-03-17
    • US12991309
    • 2009-04-30
    • Yoshihiro HosokawaKei KobayashiHirofumi YamadaKazumi MatsushigeYukiko Mori
    • Yoshihiro HosokawaKei KobayashiHirofumi YamadaKazumi MatsushigeYukiko Mori
    • G01R27/32
    • G01Q10/06G01Q10/065
    • A method for measuring surface properties according to the present invention includes the steps of: with distance control feedback applied so that a desired physical quantity to be measured that is attributed to an interaction between a probe and a sample is actually measured while changing a measured distance between the probe and the sample in accordance with a relationship between the desired physical quantity and the measured distance, (i) setting a set value, corresponding to the desired physical quantity, which serves to change the measured distance; and (ii) recording, for each set value thus set, a relationship between the measured distance changed by the set value set in the step (i) and a physical quantity measured with the probe and the sample placed at that measured distance. This allows precise and quick measurement of a physical quantity even in a region where the probe and the sample are very close to each other, while avoiding a collision between them.
    • 根据本发明的用于测量表面性质的方法包括以下步骤:应用距离控制反馈,使得实际测量归因于探针和样品之间的相互作用的待测量的待测物理量,同时改变测量距离 根据所需物理量与测量距离之间的关系在探针和样本之间,(i)设置对应于期望物理量的设定值,其用于改变测量的距离; 以及(ii)对于如此设定的每个设定值,记录测量距离变化了步骤(i)中设定的设定值与用探头测量的物理量与放置在该测量距离处的样品之间的关系。 即使在探针和样品彼此非常接近的区域中,也能够精确而快速地测量物理量,同时避免它们之间的碰撞。
    • 4. 发明授权
    • Method and apparatus for measuring values of physical property
    • 用于测量物理性能值的方法和装置
    • US06823724B1
    • 2004-11-30
    • US10396735
    • 2003-03-25
    • Kei KobayashiHirofumi YamadaKazumi Matsushige
    • Kei KobayashiHirofumi YamadaKazumi Matsushige
    • G01B528
    • G01Q60/30Y10S977/85Y10S977/852
    • A method of detecting the distribution of values of a physical property such as the dopant concentration of a semiconductor without being adversely affected by stray capacitance is offered. A scanning probe microscope capable of implementing this method is also offered. The method starts with applying an AC voltage of angular frequency &ohgr; between a probe and a sample from a fixed oscillator. The output from the oscillator is supplied to a piezoelectric device that drives the cantilever. The cantilever produces a deflection signal corresponding to forces corresponding to interactions between the probe and sample. A signal regarding the amplitude is extracted from the deflection signal. This signal is fed back to a means for controlling the distance between the probe and sample and supplied to a display device. As a result, an image of the surface topography of the sample is obtained. A harmonic component having a frequency higher than the triple or more of the angular frequency &ohgr; and contained in the cantilever deflection signal is extracted by a lock-in amplifier. As a result, information representing an image of differential capacitance (∂C/∂V) is obtained.
    • 提供了不受杂散电容不利影响的检测诸如半导体的掺杂剂浓度的物理性质的值分布的方法。 还提供了能够实现该方法的扫描探针显微镜。 该方法开始于在来自固定振荡器的探针和样本之间施加角频率ω的交流电压。 来自振荡器的输出被提供给驱动悬臂的压电装置。 悬臂产生对应于对应于探针和样品之间的相互作用的力的偏转信号。 从偏转信号中提取关于振幅的信号。 该信号被反馈到用于控制探针和样品之间的距离并提供给显示装置的装置。 结果,获得样品的表面形貌的图像。 通过锁定放大器提取具有高于角频率ω3的三倍以上并且包含在悬臂偏转信号中的频率的谐波分量。 结果,获得表示差分电容图像(∂C/∂V)的信息。
    • 5. 发明申请
    • APPARATUS AND METHOD OF OBTAINING FIELD BY MEASUREMENT
    • 设备和方法通过测量领域获得
    • US20100219819A1
    • 2010-09-02
    • US12594050
    • 2008-03-28
    • Kenjiro KimuraKei KobayashiHirofumi YamadaKazumi MatsushigeTakashi HoriuchiNobuo SatohAkifumi Nakai
    • Kenjiro KimuraKei KobayashiHirofumi YamadaKazumi MatsushigeTakashi HoriuchiNobuo SatohAkifumi Nakai
    • G01R33/02G01Q60/08
    • G01R33/10G01Q30/04G01Q60/50G01R33/0206G01R33/0385
    • Above the sample (9) having magnetic domains, a distribution of magnetic force in a measurement plane (91) is obtained as a magnetic force image with use of a MFM, an auxiliary magnetic force image is obtained by performing measurement in a measurement plane (92) away from the measurement plane (91) by a minute distance d, and a difference between them is divided by the minute distance d to obtain a magnetic force gradient image. The magnetic force image and the auxiliary magnetic force image are Fourier transformed and substituted into a three-dimensional field obtaining equation derived from a general solution of the Laplace equation, and the three-dimensional field indicating the magnetic force is obtained with high accuracy. A state of the magnetic domains at the surface (93) of the sample (9) can be obtained with high accuracy by obtaining the three-dimensional field. The three-dimensional field obtaining method using the three-dimensional field obtaining equation can be used for various fields of magnetic, electric, temperature and gravity potential and so on satisfying the Laplace equation. The obtaining of the three-dimensional field can be extended to obtaining of an n-dimensional field having high-dimension.
    • 在具有磁畴的样品(9)上方,通过使用MFM获得在测量平面(91)中的磁力分布作为磁力图像,通过在测量平面中进行测量获得辅助磁力图像( 92)远离测量平面(91)微小的距离d,并且它们之间的差除以微小距离d以获得磁力梯度图像。 将磁力图像和辅助磁力图像进行傅里叶变换并代入由拉普拉斯方程的一般解导出的三维场获得方程,并且以高精度获得表示磁力的三维场。 通过获得三维场,可以高精度地获得样品(9)的表面(93)处的磁畴的状态。 使用三维场获得方程的三维场获取方法可以用于满足拉普拉斯方程的磁,电,温度和重力等各种领域。 可以将三维场的获得扩展到获得具有高维度的n维场。
    • 6. 发明授权
    • Scan device for microscope measurement instrument
    • 扫描仪用于显微镜测量仪器
    • US08796654B2
    • 2014-08-05
    • US13056293
    • 2008-07-31
    • Masahiro OhtaNoriaki OyabuKenjiro KimuraShinichiro IdoKei KobayashiHirofumi YamadaKazumi Matsushige
    • Masahiro OhtaNoriaki OyabuKenjiro KimuraShinichiro IdoKei KobayashiHirofumi YamadaKazumi Matsushige
    • G01N21/86G01V8/00G01N35/10G01Q10/06H01J37/20H01J37/26H01J37/28B82Y35/00
    • G01N35/1011B82Y35/00G01Q10/065H01J37/20H01J37/265H01J37/28H01J2237/20228
    • A probe needle is successively moved to a plurality of measurement points set in a measurement region on a sample so as to measure a z-displacement amount. An excitation control unit feedback-controls a piezoelectric element so that a vibration amplitude of a cantilever is constant in accordance with the detection output by a displacement detection unit. Moreover, a vertical displacement control unit feedback-controls a vertical position scan unit so as to obtain a constant distance between the probe needle and the sample according to a frequency shift by a frequency detection unit. When changes of outputs of two feedback loops at a certain measurement point are both within a predetermined range, a main control unit issues an instruction to a horizontal position control unit to rapidly move to the next measurement point. As a result, it is possible to adaptively decide such a measurement time that both of the two feedback controls at respective measurement points are established. This eliminates an unnecessary measurement time, which in turn reduces the time required for creating one convex/concave image as compared to the conventional technique and improves the throughput.
    • 将探针连续地移动到设置在样本上的测量区域中的多个测量点,以测量z位移量。 激励控制单元根据位移检测单元的检测输出反馈控制压电元件,使得悬臂的振动振幅恒定。 此外,垂直位移控制单元反馈控制垂直位置扫描单元,以便通过频率检测单元根据频移获得探针和样本之间的恒定距离。 当在某个测量点处的两个反馈回路的输出的变化都在预定范围内时,主控制单元向水平位置控制单元发出指令以快速移动到下一个测量点。 结果,可以自适应地确定建立各测量点的两个反馈控制两者的测量时间。 这消除了不必要的测量时间,这又减少了与传统技术相比创建一个凸/凹图像所需的时间并且提高了吞吐量。
    • 7. 发明申请
    • Scan Device
    • 扫描设备
    • US20110261352A1
    • 2011-10-27
    • US13056293
    • 2008-07-31
    • Masahiro OhtaNoriaki OyabuKenjiro KimuraShinichiro IdoKei KobayashiHirofumi YamadaKazumi Matsushige
    • Masahiro OhtaNoriaki OyabuKenjiro KimuraShinichiro IdoKei KobayashiHirofumi YamadaKazumi Matsushige
    • G01N21/01
    • G01N35/1011B82Y35/00G01Q10/065H01J37/20H01J37/265H01J37/28H01J2237/20228
    • A probe needle is successively moved to a plurality of measurement points set in a measurement region on a sample so as to measure a z-displacement amount. An excitation control unit feedback-controls a piezoelectric element so that a vibration amplitude of a cantilever is constant in accordance with the detection output by a displacement detection unit. Moreover, a vertical displacement control unit feedback-controls a vertical position scan unit so as to obtain a constant distance between the probe needle and the sample according to a frequency shift by a frequency detection unit. When changes of outputs of two feedback loops at a certain measurement point are both within a predetermined range, a main control unit issues an instruction to a horizontal position control unit to rapidly move to the next measurement point. As a result, it is possible to adaptively decide such a measurement time that both of the two feedback controls at respective measurement points are established. This eliminates an unnecessary measurement time, which in turn reduces the time required for creating one convex/concave image as compared to the conventional technique and improves the throughput.
    • 将探针连续地移动到设置在样本上的测量区域中的多个测量点,以测量z位移量。 激励控制单元根据位移检测单元的检测输出反馈控制压电元件,使得悬臂的振动振幅恒定。 此外,垂直位移控制单元反馈控制垂直位置扫描单元,以便通过频率检测单元根据频移获得探针和样本之间的恒定距离。 当在某个测量点处的两个反馈回路的输出的变化都在预定范围内时,主控制单元向水平位置控制单元发出指令以快速移动到下一个测量点。 结果,可以自适应地确定建立各测量点的两个反馈控制两者的测量时间。 这消除了不必要的测量时间,这又减少了与传统技术相比创建一个凸/凹图像所需的时间并且提高了吞吐量。