PATENT CLAIM ANALYSIS

Application Number: 16074971
Application Type: Utility
Filing Date: 2018-08
Publication Date: 2019-01
Patent Classification: ["355", "067000"]

Abstract:
A lithographic apparatus ( 10 ) and method for preventing exposure of a peripheral portion (P) of a substrate (S). An edge mask (M) has a radial concave edge (E) that extends over less than half a circle arch. The edge mask (M) is connected to a mask carrier ( 4 ) that circumnavigates the projection system ( 2 ) to adjust a tangential coordinate (Φ) and a radial coordinate (R) of the edge mask (M) with respect to the optical axis (A) of the projection system ( 2 ) for inserting the edge mask (M) at a variable distance into the beam of radiation (B). The tangential and radial positions (Φ,R) of the edge mask (M) are coordinated with a changing position (X,Y) of the substrate (S) to prevent exposure of the peripheral portion (P) of the substrate (S) during exposure of the target region (T).

Claim (Index 2):
The lithographic apparatus according to  claim 1 , wherein the mask carrier comprises a pivotable element attached to the edge mask and engaged with a pair of concentric rings that are each independently rotatable around a central position, wherein the concentric rings form a central opening at the central position for allowing the beam of radiation to pass there through, wherein the mask drive mechanism is configured to independently drive the concentric rings;\n wherein the pivotable element is configured by its engagement to the concentric rings to rotate the edge mask with a first coordinate around the central position when the concentric rings are both rotated over the same angle; and wherein the pivotable element is configured by its engagement to the concentric rings to rotate the edge mask with a second coordinate around a pivot point that is radially offset from the central position to variably block part of the central opening when the concentric rings are relatively rotated with respect to each other with a different angle.

Metadata:
- Claim Count in Document: 2.0
- Percentile: 96.0
- Lexical Diversity: 2.51316
- Patent Class: 355.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['11806265', '11429451', '10939966', '11783113', '11257081']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7087203775134432
- 35 USC 102 Novelty (BERT): 0.4618881824700598
- Combined Prediction Score: 0.6840371580091048
- Mean Citation Score: 175.620342
- Max Citation Score: 203.48677
- Similarity Product: 166.66059006955743

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

Dataset: test