PATENT CLAIM ANALYSIS

Application Number: 16056875
Application Type: Utility
Filing Date: 2018-08
Publication Date: 2018-12
Patent Classification: ["355", "072000"]

Abstract:
Within area where of four heads installed on a wafer stage, heads included in the first head group and the second head group to which three heads each belong that include one head different from each other face the corresponding areas on a scale plate, the wafer stage is driven based on positional information which is obtained using the first head group, as well as obtain the displacement (displacement of position, rotation, and scaling) between the first and second reference coordinate systems corresponding to the first and second head groups using the positional information obtained using the first and second head groups. By using the results and correcting measurement results obtained using the second head group, the displacement between the first and second reference coordinate systems is calibrated, which allows the measurement errors that come with the displacement between areas on scale plates where each of the four heads face.

Claim (Index 15):
The exposure apparatus according to  claim 14 , wherein\n each of the four heads is capable of measuring positional information of the first and the second stages in two directions, the two directions consisting of one of a first direction and a second direction that are orthogonal to the optical axis of the projection optical system, and a third direction parallel to the optical axis.

Metadata:
- Claim Count in Document: 56.0
- Percentile: 96.0
- Lexical Diversity: 2.36765
- Patent Class: 355.0
- Transitional Phrase Type: closed
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['14462668', '15269030', '15628982', '15878545', '15182166']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7701254016374273
- 35 USC 102 Novelty (BERT): 0.525519362138283
- Combined Prediction Score: 0.7456647976875128
- Mean Citation Score: 371.52087200000005
- Max Citation Score: 375.409
- Similarity Product: 316.102950918138

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