PATENT CLAIM ANALYSIS

Application Number: 16141162
Application Type: Utility
Filing Date: 2018-09
Publication Date: 2019-01
Patent Classification: ["438", "706000"]

Abstract:
The present invention relates to a method for selectively etching a silicon oxide film by using a low-temperature process in a semiconductor manufacturing process and, more specifically, the method comprises the steps of: putting, into a reactor, a substrate having a silicon oxide film and a silicon nitride film formed thereon; setting process conditions including a process temperature having a range of 0° C. to 30° C. below zero; and supplying process gas into the reactor under the process conditions so as to selectively etch the silicon oxide film with respect to the silicon nitride film.

Claim (Index 4):
The method of  claim 3 , wherein a flow rate ratio of the hydrogen fluoride (HF) gas and the IPA gas is equal to or greater than 5:1.

Metadata:
- Claim Count in Document: 3.0
- Percentile: 97.0
- Lexical Diversity: 1.82456
- Patent Class: 438.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['12698403', '14579262', '14841271', '14818165', '12002085']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8833729911574248
- 35 USC 102 Novelty (BERT): 0.5074113015209898
- Combined Prediction Score: 0.8457768221937814
- Mean Citation Score: 258.525872
- Max Citation Score: 268.1948
- Similarity Product: 187.233384129262

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