摘要:
Methods that include using a noble gas ion beam to determine dopant information for a sample are disclosed, the dopant information including dopant concentration in the sample, dopant location in the sample, or both.
摘要:
Methods that include using a noble gas ion beam to determine dopant information for a sample are disclosed, the dopant information including dopant concentration in the sample, dopant location in the sample, or both.
摘要:
An analysis method by which a surface impurity in a very small region can be specified, wherein an electron beam is accelerated with an acceleration voltage and irradiated upon a very small region of a specimen and a mass spectrometry of neutral surface impurity molecules desorbed from the very small region is performed. The acceleration voltage for accelerating the electron beam is set to a voltage with which desorption of the neutral surface impurity molecules by an electron stimulated desorption (ESD) effect occurs.
摘要:
A focused ion beam system capable of acquiring surface structure information, internal structure information, and internal composition information about a sample simultaneously from the same field of view of the sample. A method of sample preparation and observation employs such focused ion beam system to accurately set a sample processing position based on information about the structure and composition of the sample acquired from multiple directions of the sample, and to process and observe the sample. The system includes, in order to acquire the sample structure and composition information simultaneously, a secondary electron detector, a transmission electron detector, and an energy dispersive X-ray spectroscope or an electron energy loss spectroscope, and employs a stub having the sample rotating and tilting function. The method includes a marking process.
摘要:
A flood gun 10 for charge neutralization of an analysis region Ra of a sample S downstream of the flood gun, comprising: a first source 30 of electrons; a second source 50 of positively charged particles; and an extraction and focusing assembly 60,64, arranged to: (i) extract a first, electron beam from the first source and focus the first beam to a first flood area Ae at the analysis region; and (ii) extract a second, positive particle beam from the second source and focus the second beam to a second flood area Ai at the analysis region. The electron beam and the positive particle beam may both be extracted and focused simultaneously, in a single mode of operation or, alternately, in a dual mode of operation. A corresponding method of providing charge neutralization and a spectroscopic system for secondary particle emission analysis are disclosed.
摘要翻译:用于对洪水枪下游的样品S的分析区域R a a进行电荷中和的喷枪10,包括:电子的第一源30; 带正电的颗粒的第二源50; 以及提取和聚焦组件60,64,其布置成:(i)从第一源提取第一电子束,并将第一光束聚焦到分析区域处的第一泛洪区域A 1; 和(ii)从第二源提取第二个正的粒子束,并将第二个光束聚焦到分析区域的第二个洪泛区域A 1。 电子束和正粒子束可以在单一操作模式中或者以双重操作模式同时被提取和聚焦。 公开了提供电荷中和的相应方法和用于二次粒子发射分析的光谱系统。
摘要:
A standard sample for transmission electron microscopy (TEM) elemental mapping and a TEM elemental mapping method using the same are provided. The standard sample includes a substrate; a first crystalline thin film containing heavy atoms formed on the substrate; a first amorphous thin film having oxides or nitrides containing light atoms and having a thickness of 1–5 nm or 6–10 nm formed on the first crystalline thin film; a second crystalline thin film containing heavy atoms formed on the first amorphous thin film. The standard sample can be used to correct TEM, EDS and EELS mapping results of a multi-layered nanometer-sized thin film and to optimize mapping conditions.
摘要:
A method of calculating an electronic state of a material by using a calculation device, wherein the calculation device sets a set containing, as elements, a plurality of operation models, where each of operation models provides an approximate solution to the electronic state of the material, determines an optimized operation model that are close in distance in a space formed by the set while defining a direction in which the calculated self-consistent solutions of the effective Hamiltonian of an electron system continuously change, evaluates a variational energy of the electron system by the self-consistent solution, updates the operation model so that the evaluated variational energy approaches an energy of an exact solution to be calculated and further, so that the variational energy forms a monotonically decreasing convex function, and calculates the exact solution of the electronic state from one or a plurality of variational energy series.
摘要:
A charged particle analyzer (1) comprises a first non-imaging electrostatic lens (8, 9) for receiving charged particles having divergent, trajectories and for converting the said trajectories into substantially parallel trajectories. At least one planar filter (10) is provided for receiving the charged particles having the substantially parallel trajectories and for filtering the charged particles in accordance with their respective energies. A second non-imaging electrostatic lens (11) receives the energy filtered charged particles and selectively modifies their trajectories as a function of their energies. A charged particle detector (12) then receives the charged particles in accordance with their selectively modified trajectories.
摘要:
A background reduction system may include, but is not limited to: a charged particle source configured to generate a charged-particle beam; a louvered structure including one or more apertures configured to selectively transmit charged particles according to their angle of incidence; and a charged-particle detector configured to receive charged particles selectively transmitted by the louvered structure.
摘要:
A flood gun 10 for charge neutralization of an analysis region Ra of a sample S downstream of the flood gun, comprising: a first source 30 of electrons; a second source 50 of positively charged particles; and an extraction and focusing assembly 60,64, arranged to: (i) extract a first, electron beam from the first source and focus the first beam to a first flood area Ae at the analysis region; and (ii) extract a second, positive particle beam from the second source and focus the second beam to a second flood area Ai at the analysis region. The electron beam and the positive particle beam may both be extracted and focused simultaneously, in a single mode of operation or, alternately, in a dual mode of operation. A corresponding method of providing charge neutralization and a spectroscopic system for secondary particle emission analysis are disclosed.
摘要翻译:用于对洪水枪下游的样品S的分析区域R a a进行电荷中和的喷枪10,包括:电子的第一源30; 带正电的颗粒的第二源50; 以及提取和聚焦组件60,64,其布置成:(i)从第一源提取第一电子束,并将第一光束聚焦到分析区域处的第一泛洪区域A 1; 和(ii)从第二源提取第二个正的粒子束,并将第二个光束聚焦到分析区域的第二个洪泛区域A 1。 电子束和正粒子束可以在单一操作模式中或者以双重操作模式同时被提取和聚焦。 公开了提供电荷中和的相应方法和用于二次粒子发射分析的光谱系统。