Invention Grant
- Patent Title: Charged particle microscope providing depth-resolved imagery
- Patent Title (中): 带电粒子显微镜提供深度分辨图像
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Application No.: US13856899Application Date: 2013-04-04
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Publication No.: US08704176B2Publication Date: 2014-04-22
- Inventor: Faysal Boughorbel , Eric Gerardus Theodoor Bosch , Pavel Potocek , Xiaodong Zhuge , Berend Helmerus Lich
- Applicant: FEI Company
- Applicant Address: US OR Hillsboro
- Assignee: FEI Company
- Current Assignee: FEI Company
- Current Assignee Address: US OR Hillsboro
- Agency: Scheinberg & Associates, PC
- Agent Michael O. Scheinberg; John B. Kelly
- Priority: EP11177091 20110810; EP12163262 20120405; EP13153164 20130130
- Main IPC: H01J37/26
- IPC: H01J37/26

Abstract:
A method of examining a sample using a charged-particle microscope, comprising mounting the sample on a sample holder; using a particle-optical column to direct at least one beam of particulate radiation onto a surface S of the sample, thereby producing an interaction that causes emitted radiation to emanate from the sample; using a detector arrangement to detect at least a portion of said emitted radiation, the method of which comprises embodying the detector arrangement to detect electrons in the emitted radiation; recording an output On of said detector arrangement as a function of kinetic energy En of said electrons, thus compiling a measurement set M={(On, En)} for a plurality of values of En; using computer processing apparatus to automatically deconvolve the measurement set M and spatially resolve it into a result set R={(Vk, Lk)}, in which a spatial variable V demonstrates a value Vk at an associated discrete depth level Lk referenced to the surface S, whereby n and k are members of an integer sequence, and spatial variable V represents a physical property of the sample as a function of position in its bulk.
Public/Granted literature
- US20130228683A1 Charged-Particle Microscope Providing Depth-Resolved Imagery Public/Granted day:2013-09-05
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