PATENT CLAIM ANALYSIS

Application Number: 15744401
Application Type: Utility
Filing Date: 2018-01
Publication Date: 2018-07
Patent Classification: ["438", "689000"]

Abstract:
A technique capable of removing a natural oxide film formed on a surface of a semiconductor layer which contains a compound of indium and an element other than indium as a main ingredient, without making a temperature of the semiconductor layer relatively high. The technique includes supplying a first etching gas which is β-diketone to the semiconductor layer and heating the semiconductor layer to remove an oxide of the indium constituting the natural oxide film; and supplying a second etching gas to the semiconductor layer and heating the semiconductor layer to remove an oxide of the element constituting the natural oxide film. By using the first etching gas, it is possible to remove the indium oxide even if the temperature of the semiconductor layer is relatively low. This eliminates the need to increase the temperature to a relatively high level when removing the natural oxide film.

Claim (Index 1):
A method of removing a natural oxide film formed on a surface of a semiconductor layer containing a compound of indium and an element other than indium as a main ingredient, comprising:\n supplying a first etching gas which is \u03b2-diketone to the semiconductor layer and heating the semiconductor layer to remove an oxide of the indium constituting the natural oxide film; and supplying a second etching gas to the semiconductor layer and heating the semiconductor layer to remove an oxide of the element other than indium constituting the natural oxide film.

Metadata:
- Claim Count in Document: 13.0
- Percentile: 86.0
- Lexical Diversity: 2.5082
- Patent Class: 438.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['14579262', '14712245', '12864824', '13626146', '14900877']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.823373719824385
- 35 USC 102 Novelty (BERT): 0.4820219369560563
- Combined Prediction Score: 0.7892385415375521
- Mean Citation Score: 183.36241
- Max Citation Score: 187.37357
- Similarity Product: 143.63718598262668

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