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    • 61. 发明申请
    • CHARGED PARTICLE DETECTION APPARATUS AND DETECTION METHOD
    • 充电颗粒检测装置和检测方法
    • US20100084553A1
    • 2010-04-08
    • US12247849
    • 2008-10-08
    • Juergen FROSIEN
    • Juergen FROSIEN
    • G01N23/00
    • G01T1/00
    • A detection apparatus for use in a charged particle beam device is provided. The detection apparatus includes a separation field generating portion adapted to generate a separation field separating positively and negatively charged secondary particles, at least one first detector for detecting positively charged particles, at least one second detector for detecting negatively charged particles, wherein the detection apparatus is adapted to simultaneously detect the positively charged secondary particles in the at least one first detector and the negatively charged secondary particles in the at least one second detector. Further, a method of simultaneously detecting negatively and positively charged particles is provided. The method includes providing a separation field, providing at least one first detector and at least one second detector, separating the negatively charged particles from the positively charged particles in the separation field, simultaneously detecting positively charged particles with the at least one first detector and negatively charged particles with the at least one second detector.
    • 提供一种用于带电粒子束装置的检测装置。 检测装置包括:分离场产生部分,适于产生分离带正电荷和带负电荷的二次粒子的分离场;至少一个检测带正电荷的粒子的第一检测器;用于检测带负电荷的粒子的至少一个第二检测器,其中检测装置 适于同时检测所述至少一个第一检测器中的带正电荷的次级颗粒和所述至少一个第二检测器中的带负电荷的次级颗粒。 此外,提供同时检测带正电的带电粒子的方法。 该方法包括提供分离场,提供至少一个第一检测器和至少一个第二检测器,从分离场中带正电的粒子分离带负电的粒子,同时用至少一个第一检测器检测带正电的粒子, 带电粒子与至少一个第二检测器。
    • 62. 发明授权
    • Focussing lens for charged particle beams
    • 用于带电粒子束的聚焦透镜
    • US07652263B2
    • 2010-01-26
    • US10587137
    • 2005-01-21
    • Hans-Peter Feuerbaum
    • Hans-Peter Feuerbaum
    • H01J37/28
    • H01J37/28H01J37/12
    • A focussing lens for focussing a charged particle beam onto a specimen at a predetermined landing angle. The focussing lens comprises at least one first electrode having a first aperture to generate a focussing electric field for focussing the charged particle beam onto the specimen and a correcting electrode having a curved surface to compensate for landing angle dependent distortions of the focussing electric field caused by the specimen. With the curved surface of the correcting electrode, it is possible to improve the focussing of a charged particle beam at landing angles that differ from the perpendicular landing angle.
    • 一种聚焦透镜,用于以预定的着陆角将带电粒子束聚焦到样本上。 聚焦透镜包括具有第一孔径的至少一个第一电极,以产生用于将带电粒子束聚焦到样本上的聚焦电场,以及具有弯曲表面的校正电极,以补偿由...引起的聚焦电场的着落角度相关失真 标本。 利用校正电极的弯曲表面,可以改善与垂直着陆角不同的着陆角的带电粒子束的聚焦。
    • 63. 发明授权
    • Charged particle beam emitting device and method for operating a charged particle beam emitting device
    • 带电粒子束发射装置和用于操作带电粒子束发射装置的方法
    • US07595490B2
    • 2009-09-29
    • US11469728
    • 2006-09-01
    • Fang ZhouPavel AdamecJürgen FrosienJimmy Vishnipolsky
    • Fang ZhouPavel AdamecJürgen FrosienJimmy Vishnipolsky
    • G01N23/00G21K7/00
    • H01J37/073H01J2237/022H01J2237/06325
    • A method for operating a charged particle beam emitting device and, in particular, an electron beam emitting device including a cold field emitter is provided. The method includes the steps of placing the cold field emitter in a vacuum of a given pressure, the emitter exhibiting a high initial emission current I0 and a lower stable mean emission current IS under a given electric extraction field; applying the given electric extraction field to the emitter for emitting electrons from the emitter surface; performing a cleaning process by applying at least one heating pulse to the cold field emitter for heating the emitter surface, whereby the cleaning process is performed before the emission current of the cold field emitter has declined to the lower stable mean emission value IS; and repeating the cleaning process to keep the emission current of the emitter continuously above the substantially stable emission value IS.
    • 提供了一种用于操作带电粒子束发射器件的方法,特别是包括冷场发射器的电子束发射器件。 该方法包括以下步骤:将冷场发射器置于给定压力的真空中,发射体在给定的电提取场下表现出高的初始发射电流I0和较低的稳定平均发射电流IS; 将给定的电提取场施加到发射器以从发射器表面发射电子; 通过向冷场发射器施加至少一个加热脉冲来加热发射体表面来执行清洁处理,由此在冷场发射器的发射电流已经下降到较低的稳定平均发射值IS之前进行清洁处理; 并重复清洁处理以将发射极的发射电流连续地保持在基本上稳定的发射值IS上。
    • 67. 发明授权
    • Imaging apparatus for high probe currents
    • 高探头电流成像设备
    • US07361897B2
    • 2008-04-22
    • US11370224
    • 2006-03-07
    • Ralf Degenhardt
    • Ralf Degenhardt
    • H01J3/14H01J37/26G01N23/00
    • H01J37/28H01J37/153
    • An imaging apparatus is provided, comprising a first lens, a Wien filter having a first opening and a second opening, and further comprising a 2*m-pole element, m≧2, and a second lens, wherein said first lens is disposed upstream said first opening of the Wien filter and said second lens is disposed downstream said second opening of the Wien filter, and an intermediate image plane of the first lens is located between said first opening and said first lens and an intermediate object plane of the second lens is located between said second opening and said second lens, and wherein said Wien filter is adapted for dispersion-free imaging of a stigmatic image formed in said intermediate image plane of said first lens into a stigmatic image formed in said intermediate object plane of said second lens.
    • 提供了一种成像装置,包括第一透镜,具有第一开口和第二开口的维恩滤光器,并且还包括m 2 = 2的2 * m极元件和第二透镜,其中所述第一透镜被布置 上游所述维恩滤波器的第一开口,并且所述第二透镜设置在所述维恩滤波器的所述第二开口的下游,并且所述第一透镜的中间像平面位于所述第一开口和所述第一透镜之间,并且所述第二透镜的中间物平面 透镜位于所述第二开口和所述第二透镜之间,并且其中所述维恩滤波器适于将形成在所述第一透镜的所述中间像平面中的眩光图像的无色成像成形为在所述第二透镜的所述中间物平面中形成的眩光图像 第二个镜头。
    • 69. 发明授权
    • Focusing lens and charged particle beam device for titled landing angle operation
    • 聚焦透镜和带电粒子束装置进行标题着陆角操作
    • US07326927B2
    • 2008-02-05
    • US11249772
    • 2005-10-13
    • Jürgen Frosien
    • Jürgen Frosien
    • G21G5/00
    • H01J37/28H01J37/145H01J2237/153H01J2237/2814
    • The present invention relates to a focusing lens, a charged particle beam device, and a method for focusing a charged particle beam onto a specimen, wherein the focusing lens comprises an auxiliary electrode having an essentially planar electrode surface for focusing the charged particle beam at a tilted landing angle, wherein the essentially planar electrode surface includes an auxiliary electrode angle with the optical axis of the focusing lens that is smaller than 80 degrees. With such a focusing lens, it is possible to operate a charged particle beam device at a tilted landing angle where focusing field distortions, caused by the tilted landing angle, are reduced.
    • 本发明涉及一种聚焦透镜,带电粒子束装置和用于将带电粒子束聚焦到样本上的方法,其中聚焦透镜包括具有基本上平面的电极表面的辅助电极,用于将带电粒子束聚焦在 倾斜的着陆角,其中基本平面的电极表面包括与聚焦透镜的光轴小于80度的辅助电极角度。 利用这样的聚焦透镜,可以以倾斜的着陆角操作带电粒子束装置,由此倾斜的着陆角引起的聚焦场失真减小。
    • 70. 发明授权
    • Electron emission device
    • 电子发射装置
    • US07268361B2
    • 2007-09-11
    • US10483114
    • 2002-07-01
    • Pavel AdamecDieter Winkler
    • Pavel AdamecDieter Winkler
    • H01L29/06H01L21/00
    • H01J1/3044H01J2201/319
    • The invention provides an electron beam device 1 comprising at least one field emission cathode 3 and at least one extracting electrode 5, whereby the field emission cathode 5 comprises a p-type semiconductor region 7 connected to an emitter tip 9 made of a semiconductor material, an n-type semiconductor region 11 forming a pn-diode junction 13 with the p-type semiconductor region 7 a first electric contact 15 on the p-type semiconductor region 7 and a second electric contact 17 on the n-type semiconductor region 11. The p-type semiconductor region 7 prevents the flux of free electrons to the emitter unless electrons are injected into the p-type semiconductor region 7 by the pn-diode junction 13. This way, the field emission cathode 3 can generate an electron beam where the electron beam current is controlled by the forward biasing second voltage V2 across the pn-diode junction. Such electron beam current has an improved current value stability. In addition the electron beam current does not have to be stabilized anymore by adjusting, the voltage between emitter tip 9 and extracting electrode 5 which would interfere with the electric field of electron beam optics. The present invention further provides the field emission cathode as described above and an array of field emission cathodes. The invention further provides a method to generate at least one electron beam.
    • 本发明提供一种包括至少一个场发射阴极3和至少一个提取电极5的电子束装置1,由此场发射阴极5包括连接到由半导体材料制成的发射极尖端9的p型半导体区域7, 在p型半导体区域7上形成p型二极管结13的n型半导体区域11,p型半导体区域7上的第一电接触15和n型半导体区域11上的第二电接触17。 p型半导体区域7防止自由电子束流到发射极,除非电子被pn二极管结13注入到p型半导体区域7中。这样,场发射阴极3可以产生电子束,其中 电子束电流由跨越pn二极管结的正向偏置第二电压V 2控制。 这种电子束电流具有改善的电流值稳定性。 此外,电子束电流不必通过调节发射极尖端9和提取电极5之间的电压,这将干扰电子束光学器件的电场。 本发明还提供如上所述的场致发射阴极和场发射阴极阵列。 本发明还提供了一种产生至少一个电子束的方法。