PATENT CLAIM ANALYSIS

Application Number: 15900428
Application Type: Utility
Filing Date: 2018-02
Publication Date: 2019-08
Patent Classification: ["250", "398000"]

Abstract:
A multi-beam charged particle column for inspecting a surface of a sample includes a source for creating multiple primary charged particle beams which are directed towards the sample, an objective lens unit for focusing the primary charged particle beams on the sample, a detector for detecting signal charged particles from the sample, and a magnetic deflection unit arranged between the detector and the sample. The magnetic deflection unit includes a plurality of strips of a magnetic or ferromagnetic material. At least two strips of the plurality of strips are located at opposite sides of a trajectory of a primary charged particle beam and within a distance equal to a pitch of the trajectories of the primary charged particle beams at the magnetic deflection unit. The strips are configured to establish a magnetic field having field lines substantially perpendicular to the trajectories of the primary charged particle beams.

Claim (Index 19):
Use of a multi-beam charged particle column, for at least one of inspecting and imaging a surface of a sample, the multi-beam charged particle column comprising the steps of:\n creating multiple primary charged particle beams directed along trajectories towards the surface of the sample arranged on a sample holder using one or more emitters, focusing said multiple primary charged particle beams on said sample using an objective lens unit, detecting signal charged particles created upon incidence of the primary charged particle beams on said sample using a detector system, and using a combined magnetic deflection unit and electrostatic deflection unit arranged between the detector system and the sample holder, wherein the magnetic deflection unit comprises a plurality of strips of a magnetic or ferromagnetic material, wherein each strip of said plurality of strips is located next to a trajectory of a primary charged particle beam and within a distance equal to a pitch of the trajectories of the primary charged particle beams at the magnetic deflection unit, wherein the plurality of strips of a magnetic or ferromagnetic material establishes a magnetic field having field lines which cross a trajectory of the primary charged particle beams at an angle which is larger than 0 degrees, wherein the electrostatic deflection unit creates an electrostatic field acting at least on the primary charged particle beams, wherein the electrostatic deflection member provides an electrostatic field in a direction at least substantially perpendicular to the magnetic field of the magnetic deflection unit, and wherein the magnetic deflection unit and the electrostatic deflection unit are arranged spaced apart in a direction parallel to the trajectories of the primary charged particle beams.

Metadata:
- Claim Count in Document: 47.0
- Percentile: 88.0
- Lexical Diversity: 2.26471
- Patent Class: 250.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15900415', '15507661', '12579869', '10154530', '14340335']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7082081547957942
- 35 USC 102 Novelty (BERT): 0.5533825857366014
- Combined Prediction Score: 0.692725597889875
- Mean Citation Score: 327.582158
- Max Citation Score: 415.36356
- Similarity Product: 356.2384808399034

Labels:
- Claim Label 101: 0
- Claim Label 102: 1
- Claim Label 103: 1
- Claim Label 112: 1
- Combined Label: 0
- Label 101 Adjusted: 0

Dataset: test