PATENT CLAIM ANALYSIS

Application Number: 15981298
Application Type: Utility
Filing Date: 2018-05
Publication Date: 2018-09
Patent Classification: ["356", "437000"]

Abstract:
A system and method are disclosed for gas sensing over a wide tunable wavelength range provided by one or more quantum cascade lasers. A laser beam is generated within the wide tunable wavelength range, which is given by the sum of the wavelength ranges from the individual lasers. Gas sensing or detection is achieved by obtaining an infrared absorption spectrum for a sample contained in one or more cells having different path lengths for the laser beam.

Claim (Index 2):
A method for gas sensing, comprising:\n providing at least one quantum cascade laser configured for tuning within a wavelength range and for providing a beam in the wavelength range; directing the beam through at least one cell containing a sample from a semiconductor processing operation; and obtaining at least one absorption spectrum for the sample by detecting the beam exiting the at least one cell, which optionally further comprises determining concentrations of any of the following: H 2 O, CO, CO 2 , CH 4 , NH 3 , plus other hydrocarbons; fluoro-carbons: CF 4 , C 2 F 4 , C 2 F 6 , C 3 F 6 , C 3 F 8 , C 4 F 6 , C 4 F 8 , C 5 F 8 ; hydro-fluoro-carbons: CH 2 F 2 , CH 3 F, CHF 3 , C 2 H 3 F, C 2 HF 3 ; silicon-containing: SiF 4 , SiH 4 , SiCl 2 H 2 ; other fluorine-containing: HF, SF 6 , NF 3 , ClF 3 , OF 2 , SOF 2 , SO 2 F 2 ; other chlorine-containing: CCl 4 , BCl 3 ; nitrogen oxides: NO, N 2 O, NO 2 ; and sulfur oxides: SO 2  and impurities in bulk gases such as He, H 2 , Ar, O 2 , N 2 , H 2 O, CH 4 , C 2 H 6 , NH 3 , CO 2 , CO; impurities in rare gases such as He, Ne, Kr, Xe, Rn; impurities in semiconductor gases such as H 2 , SiH 4 , SiF 4 , HBr, CF 4 , CCl 4 , NF 3 , C 2 F 6 , C 3 F 8 , N 2 O, C 2 H 2 , C 2 H 6 , C 3 H 4 , PH 3 , AsH 3 , SF 6 , NH 3 ; trace impurities in gases such as H 2 , Ne, Ar, N 2 , Kr, CO, CO 2 , CH 4 ; and sulfur, sulfur compounds, H 2 S.

Metadata:
- Claim Count in Document: 3.0
- Percentile: 93.0
- Lexical Diversity: 1.5
- Patent Class: 356.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15017610', '14296051', '13159225', '13707300', '13502039']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.6925979089090795
- 35 USC 102 Novelty (BERT): 0.5041781209325762
- Combined Prediction Score: 0.6737559301114291
- Mean Citation Score: 210.07693
- Max Citation Score: 293.01495
- Similarity Product: 236.36859073458908

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