PATENT CLAIM ANALYSIS

Application Number: 16268550
Application Type: Utility
Filing Date: 2019-02
Publication Date: 2019-06
Patent Classification: ["356", "300000"]

Abstract:
Methods and systems are presented for analysing semiconductor materials as they progress along a production line, using photoluminescence images acquired using line-scanning techniques. The photoluminescence images can be analysed to obtain spatially resolved information on one or more properties of said material, such as lateral charge carrier transport, defects and the presence of cracks. In one preferred embodiment the methods and systems are used to obtain series resistance images of silicon photovoltaic cells without making electrical contact with the sample cell.

Claim (Index 1):
A method for obtaining series resistance or carrier transport information across a semiconductor material selected from the group consisting of: a photovoltaic cell; a partially metallised photovoltaic cell precursor; a photovoltaic cell precursor having an emitter layer on a base; and a photovoltaic cell precursor having a selective emitter layer on a base, said method comprising the steps of:\n illuminating a first portion of said material with a first illumination from a light source suitable for generating a photoluminescence response from said material; detecting photoluminescence emitted from a second portion of said material with an image capture device; scanning said first and second portions across a substantial area of said material, said substantial area corresponding to an entire surface of said semiconductor material; and interrogating said image capture device while said first and second portions are being scanned across said substantial area to acquire an image of photoluminescence emitted from said substantial area, wherein an intensity of said first illumination is selected such that there is a significant lateral flow of photo-generated charge carriers out of said first portion, and wherein said method further comprises the step of interpreting said image to identify defects that impede carrier transport in said substantial area.

Metadata:
- Claim Count in Document: 47.0
- Percentile: 99.0
- Lexical Diversity: 1.29851
- Patent Class: 356.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15851993', '13520375', '13384970', '14256480', '14315548']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.689428816493759
- 35 USC 102 Novelty (BERT): 0.5615132950922501
- Combined Prediction Score: 0.676637264353608
- Mean Citation Score: 274.105102
- Max Citation Score: 438.68167
- Similarity Product: 390.305408081429

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