PATENT CLAIM ANALYSIS

Application Number: 15902106
Application Type: Utility
Filing Date: 2018-02
Publication Date: 2019-08
Patent Classification: ["348", "087000"]

Abstract:
An active real-time characterization system for detecting unwanted elements and/or physical imperfections on a semiconductor wafer during manufacturing. Infrared and visible light sources output beams of coherent light directed at a particular area on the semiconductor wafer via associated polarizing control elements. A series of cameras, including a visible light camera, a visible light second harmonic generation camera, an infrared camera, an infrared second harmonic generation camera, a sum-frequency camera and a third-order camera are configured to receive return beams of light via associated polarizing control elements. The polarizing control elements include a polarizer, a quarter wave plate and/or a half wave plate. A processor processes the signals received from the cameras to detect unwanted elements and/or physical imperfections on the semiconductor wafer.

Claim (Index 19):
A method for detecting unwanted elements or physical imperfections on a semiconductor wafer during manufacturing, the method comprising:\n generating light beams from an infrared light source and a first visible light source; directing the light beams at a particular area on the semiconductor wafer via respective associated polarizing control elements; receiving, at a visible light camera, a visible light second harmonic generation camera, an infrared camera, an infrared second harmonic generation camera, and a sum-frequency camera, light from the infrared light source and light from the first visible light source reflected from the particular area of the semiconductor wafer via respective associated polarizing control elements; acquiring data from the visible light camera, the visible light second harmonic generation camera, the infrared camera, the infrared second harmonic generation camera, and the sum-frequency camera based on the received light; and processing the acquired data from the visible light camera, the visible light second harmonic generation camera, the infrared camera, the infrared second harmonic generation camera, and the sum-frequency camera to detect unwanted elements or physical imperfections on the semiconductor wafer.

Metadata:
- Claim Count in Document: 50.0
- Percentile: 88.0
- Lexical Diversity: 1.97059
- Patent Class: 348.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15902076', '15901972', '15902167', '15711626', '14526246']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.62908272496448
- 35 USC 102 Novelty (BERT): 0.5243258885061045
- Combined Prediction Score: 0.6186070413186424
- Mean Citation Score: 320.365046
- Max Citation Score: 332.49133
- Similarity Product: 265.9166100130648

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