PATENT CLAIM ANALYSIS

Application Number: 15757672
Application Type: Utility
Filing Date: 2018-03
Publication Date: 2019-01
Patent Classification: ["438", "050000"]

Abstract:
A semiconductor device production method includes performing trench etching to form a trench in a thickness direction of a semiconductor layer so that both of a first pattern portion and a second pattern portion whose side walls face each other across the trench are formed. In the trench etching, the semiconductor layer is etched and removed while a protective film is formed on a surface of the semiconductor layer, and the trench etching is performed so that the first pattern portion and the second pattern portion are configured to have a same potential or a same temperature during the trench etching.

Claim (Index 4):
The semiconductor device production method according to  claim 1 , wherein\n the trench etching is performed to form the first pattern portion and the second pattern portion so that the first pattern portion and the second pattern portion are electrically isolated from each other after the trench is formed, and the trench etching is performed to provide a structure in which a total area of a surface of a trench etching starting side and side walls of the first pattern portion is equal to a total area of a surface of a trench etching starting side and side walls of the second pattern portion.

Metadata:
- Claim Count in Document: 7.0
- Percentile: 90.0
- Lexical Diversity: 1.94444
- Patent Class: 438.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['15180484', '12883752', '14886281', '14165120', '13944562']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8706935285036386
- 35 USC 102 Novelty (BERT): 0.4752831114785206
- Combined Prediction Score: 0.8311524868011267
- Mean Citation Score: 200.823826
- Max Citation Score: 208.38054
- Similarity Product: 173.94649965992332

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