Electrodynamic mass analysis
    4.
    发明授权

    公开(公告)号:US10192727B2

    公开(公告)日:2019-01-29

    申请号:US15471507

    申请日:2017-03-28

    Abstract: An electrodynamic mass analysis system which has the capability of filtering unwanted species from an extracted ion beam without the use of a mass analyzer magnet is disclosed. The electrodynamic mass analysis system includes an ion source and an electrode disposed outside the ion source. The ion source and the electrode are biased relative to one another so as to emit pulses of ions. Each of these pulses enters a tube where each ion travels at a speed related to its mass. Thus, ions of the same mass travel in clusters through the tube. Ions reach the distal end of the tube separated temporally and spatially from one another based on their mass. The ions then enter a deflector, which is energized so as to allow the cluster of ions having the desired mass to pass through a resolving aperture disposed at the exit of the deflector.

    APPARATUS AND METHOD FOR MONITORING AND CONTROLLING THICKNESS OF A CRYSTALLINE LAYER
    9.
    发明申请
    APPARATUS AND METHOD FOR MONITORING AND CONTROLLING THICKNESS OF A CRYSTALLINE LAYER 有权
    用于监测和控制晶体层厚度的装置和方法

    公开(公告)号:US20160168748A1

    公开(公告)日:2016-06-16

    申请号:US14566085

    申请日:2014-12-10

    CPC classification number: C30B15/26 C30B15/06 C30B29/06 G01N23/207

    Abstract: An apparatus to monitor thickness of a crystalline sheet grown from a melt. The apparatus may include a process chamber configured to house the melt and crystalline sheet; an x-ray source disposed on a first side of the crystalline sheet and configured to deliver a first beam of x-rays that penetrate the crystalline sheet from a first surface to a second surface opposite the first surface, at a first angle of incidence with respect to the first surface; and an x-ray detector disposed on the first side of the crystalline sheet and configured to intercept a second beam of x-rays that are generated by reflection of the first beam of x-rays from the crystalline sheet at an angle of reflection with respect to the first surface, wherein a sum of the angle of incidence and the angle of reflection satisfies the equation λ=2d sin θ.

    Abstract translation: 监测从熔体生长的结晶片的厚度的装置。 设备可以包括处理室,其被配置为容纳熔体和结晶片; x射线源,其设置在所述结晶片的第一侧上,并且被配置为以与所述第一表面相对的第一表面向所述第一表面穿过所述结晶片的第一射线束以与所述第一表面相反的第二表面, 尊重第一面; 以及x射线检测器,其设置在所述结晶片的第一侧上并且被配置为截取通过以与所述晶片的相反的角度反射所述第一X射线束而产生的第二X射线束 到第一表面,其中入射角和反射角的和满足等式λ=2dsinθ。

Patent Agency Ranking