PATENT CLAIM ANALYSIS

Application Number: 16089956
Application Type: Utility
Filing Date: 2018-09
Publication Date: 2019-05
Patent Classification: ["355", "055000"]

Abstract:
A projection exposure apparatus is disclosed, including a focal plane measuring system ( 8 ) and an alignment measuring system ( 9 ) both disposed between a reticle stage ( 3 ) and a substrate stage ( 4 ). The alignment measuring system ( 9 ) is capable of focusing. The focal plane measuring system ( 8 ) measures variation in the surface profile of a substrate ( 5 ), and the alignment measuring system ( 9 ) effectuates focusing based on data obtained from the measurement performed by the focal plane measuring system ( 8 ). After the completion of the focusing, coordinates of various points on the substrate ( 5 ) in the alignment measuring system ( 9 ) are those of the points that have experienced the profile variation of the substrate ( 5 ). A relative positional relationship between the reticle ( 2 ) and the substrate ( 5 ) that has undergone the profile variation can be computationally derived from the changes in the coordinates of the points, and compensation can be accomplished by moving the substrate stage ( 4 ). In this way, even when there are differences between measuring focal planes of the alignment measuring system ( 9 ) and the focal plane measuring system ( 8 ), the resulting errors can be compensated for through calculation and focusing. An exposure method for a projection apparatus is also disclosed.

Claim (Index 4):
The projection exposure apparatus of  claim 1 , wherein the plurality of focal plane measuring elements of the focal plane measuring system are arranged in a line.

Metadata:
- Claim Count in Document: 1.0
- Percentile: 97.0
- Lexical Diversity: 2.76667
- Patent Class: 355.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['14796328', '15515110', '13935972', '10844939', '11011570']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.729325326011493
- 35 USC 102 Novelty (BERT): 0.4795458955852821
- Combined Prediction Score: 0.704347382968872
- Mean Citation Score: 230.271544
- Max Citation Score: 234.89825
- Similarity Product: 176.59343828195333

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