PATENT CLAIM ANALYSIS

Application Number: 16227351
Application Type: Utility
Filing Date: 2018-12
Publication Date: 2019-04
Patent Classification: ["355", "077000"]

Abstract:
In an exposure apparatus that has an illumination optical system to illuminate a mask with an illumination light and a projection optical system to project a pattern image of the illuminated mask onto a substrate, first and second movable bodies, respectively holding the mask and the substrate, are moved based on measurement information of first and the second encoder systems so that, in an exposure operation of the substrate, scanning exposure in which the mask and the substrate are each moved relative to the illumination light is performed with a first direction within the predetermined plane serving as a scanning direction while compensating for a measurement error of the second encoder system that occurs due to at least one of tilt of the second head of the second encoder system and tilt in telecentricity of the second head.

Claim (Index 1):
An exposure apparatus that has an illumination optical system to illuminate a mask with an illumination light and a projection optical system to project a pattern image of the illuminated mask onto a substrate, the apparatus comprising:\n a body having a frame member and a first base member, the frame member supporting the projection optical system, and the first base member being disposed above the projection optical system and having an opening through which the illumination light passes; a first stage system having a first movable body and a first motor, the first movable body being disposed on the first base member and configured to hold the mask in a recessed portion, and the first motor being configured to drive the first movable body; a first encoder system in which one of a first grating section and first heads is provided at the first movable body, and which measures positional information of the first movable body with a plurality of the first heads that each irradiate a reflective grating of the first grating section with a first measurement beam; a second base member disposed below the projection optical system; a second stage system having a plurality of second movable bodies and a second motor, the plurality of second movable bodies being disposed on the second base member and each configured to hold a substrate, and the second motor being configured to drive the plurality of second movable bodies; a second encoder system that has a plurality of second heads and measures positional information of the second movable bodies, the plurality of second heads each irradiating a second grating section having a reflective grating with a second measurement beam, and the second grating section being disposed substantially parallel to a predetermined plane that is orthogonal to an optical axis of the projection optical system; and a controller coupled to the first and the second stage systems and the first and the second encoder systems, the controller controlling the first and the second motors based on measurement information of the first and the second encoder systems so that, in an exposure operation of the substrate, scanning exposure in which the mask and the substrate are each moved relative to the illumination light is performed with a first direction within the predetermined plane serving as a scanning direction, wherein the controller compensates for a measurement error of the second encoder system that occurs due to at least one of tilt of the second head and tilt in telecentricity of the second head.

Metadata:
- Claim Count in Document: 55.0
- Percentile: 98.0
- Lexical Diversity: 2.11765
- Patent Class: 355.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['14489929', '15211669', '13645149', '14489154', '15659778']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7942360934205067
- 35 USC 102 Novelty (BERT): 0.5737464291135156
- Combined Prediction Score: 0.7721871269898076
- Mean Citation Score: 502.123056
- Max Citation Score: 505.49408
- Similarity Product: 463.309143007679

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

Dataset: test