PATENT CLAIM ANALYSIS

Application Number: 16115287
Application Type: Utility
Filing Date: 2018-08
Publication Date: 2019-03
Patent Classification: ["250", "311000"]

Abstract:
The present invention enlarges a range of movement of field of view by beam deflection with a simple deflector configuration and suppresses deterioration of a signal electron detection rate caused by the beam deflection. A scanning electron microscope according to the present invention is provided with a first deflection field setting module that sets plural deflectors to move a scanning area on a specimen by a primary electron beam to a position deviated from an axis extended from an electron source toward the center of an objective lens and a second deflection field setting module that sets the plural deflectors so that trajectories of signal electrons are corrected without changing the scanning area set by the first deflection field setting module. The control unit controls the plural deflectors by adding a setting value set by the second deflection field setting module to a setting value set by the first deflection field setting module.

Claim (Index 1):
A scanning electron microscope, comprising:\n an electron source; a condenser lens and an objective lens respectively for focusing a primary electron beam emitted from the electron source on a specimen; a plurality of deflectors that deflect the primary electron beam passing the condenser lens; a detector that detects a signal electron emitted from the specimen by scanning the primary electron beam to the specimen; and a control unit that controls the electron source, the condenser lens, the objective lens and the plurality of deflectors, wherein the control unit is provided with a first deflection field setting module that sets the plurality of deflectors so as to move a scanning area on the specimen by the primary electron beam to a position deviated from an axis extended from the electron source toward the center of the objective lens and a second deflection field setting module that sets the plurality of deflectors so as to correct trajectories of signal electrons without changing the scanning area of the primary electron beam set by the first deflection field setting module; and the control unit controls the plurality of deflectors by adding a setting value set by the second deflection field setting module to a setting value set by the first deflection field setting module.

Metadata:
- Claim Count in Document: 7.0
- Percentile: 96.0
- Lexical Diversity: 2.19718
- Patent Class: 250.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['14940102', '10817834', '15071526', '12862590', '12323167']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7473021703138574
- 35 USC 102 Novelty (BERT): 0.4978540519737325
- Combined Prediction Score: 0.722357358479845
- Mean Citation Score: 295.32522400000005
- Max Citation Score: 298.71844
- Similarity Product: 271.0397383591413

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

Dataset: test