PATENT CLAIM ANALYSIS

Application Number: 15898813
Application Type: Utility
Filing Date: 2018-02
Publication Date: 2019-04
Patent Classification: ["355", "077000"]

Abstract:
Embodiments described herein provide a method for cleaning contamination from sensors in a lithography tool without requiring recalibrating the lithography tool. More particularly, embodiments described herein teach cleaning the sensors using hydrogen radicals for a short period while the performance drifting is still above the drift tolerance. After a cleaning process described herein, the lithography tool can resume production without recalibration.

Claim (Index 1):
A method comprising:\n monitoring a sensor measurement indicative of an amount of contamination formed on a radiation receiving surface over a sensor in a lithography tool; and performing a cleaning session in the lithography tool when the sensor measurement reaches a threshold value, wherein the cleaning session comprises providing radicals to the radiation receiving surface, wherein after the cleaning session, the sensor is operable to provide the sensor measurement without being recalibrated.

Metadata:
- Claim Count in Document: 7.0
- Percentile: 88.0
- Lexical Diversity: 1.53488
- Patent Class: 355.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['12398403', '11384824', '12289884', '13365758', '12937498']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.6626046457830013
- 35 USC 102 Novelty (BERT): 0.4700252409331059
- Combined Prediction Score: 0.6433467052980117
- Mean Citation Score: 134.671346
- Max Citation Score: 145.21602
- Similarity Product: 93.26749916202664

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

Dataset: test