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 7):
The semiconductor device production method according to  claim 6 , wherein\n the third and fourth pattern portions are subjected to the trench etching in a state where both of a portion of the semiconductor layer configuring the third pattern portion and the semiconductor layer configuring the fourth pattern portion are joined to and supported on a support substrate through an insulating film at a portion other than the trench forming portion, and the trench etching is performed in a state where a joint surface area between the third pattern portion and the insulating film is equal to a joint surface area between the fourth pattern portion and the insulating film.

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): 0.8683520368462335
- 35 USC 102 Novelty (BERT): 0.4961349316747345
- Combined Prediction Score: 0.8311303263290836
- Mean Citation Score: 200.823826
- Max Citation Score: 208.38054
- Similarity Product: 139.71277630623578

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