PATENT CLAIM ANALYSIS

Application Number: 15915782
Application Type: Utility
Filing Date: 2018-03
Publication Date: 2018-09
Patent Classification: ["438", "720000"]

Abstract:
An etching method for a target object. The target object includes a main surface, grooves formed in the main surface, and an etching target film covering the main surface and surfaces of the grooves. The method includes supplying a first gas into a processing chamber, and supplying a second gas and a high frequency power to generate a plasma of a gas including the second gas in the processing chamber. The first gas contains an oxidizing agent that does not include a hydrogen atom. The second gas contains a compound that includes one or more silicon atoms and one or more fluorine atoms and does not include a hydrogen atom. The etching target film is made of a material that is dry etched by using fluorine, and portions of the etching target film covering the surfaces of the grooves are selectively removed.

Claim (Index 5):
The etching method of  claim 2 , wherein when the etching target film is made of SiN, the temperature of the target object in the third step is higher than or equal to 250\u00b0 C. and lower than 450\u00b0 C.

Metadata:
- Claim Count in Document: 24.0
- Percentile: 90.0
- Lexical Diversity: 2.375
- Patent Class: 438.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['15915853', '15137095', '15284635', '14638393', '15117052']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8379137090327067
- 35 USC 102 Novelty (BERT): 0.5077990878774413
- Combined Prediction Score: 0.8049022469171803
- Mean Citation Score: 178.20717599999998
- Max Citation Score: 211.76099
- Similarity Product: 136.3084169227928

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

Dataset: test