PATENT CLAIM ANALYSIS

Application Number: 16019808
Application Type: Utility
Filing Date: 2018-06
Publication Date: 2019-02
Patent Classification: ["257", "288000"]

Abstract:
A semiconductor substrate is easily warped by the shrink of the insulating film formed within the deep trench according to the thermal processing in the super junction structure. In order to solve the above problem, in a semiconductor device, an element region and a terminal region are defined on one main surface of the semiconductor substrate. The terminal region is arranged to surround the element region. In the terminal region, a plurality of buried insulators are formed from the main surface of the semiconductor substrate in a way of penetrating an n-type diffusion layer and an n-type column layer and arriving at an n-type epitaxial layer. The buried insulator is formed within a deep trench. The plural buried insulators are arranged in island shapes mutually at a distance from each other.

Claim (Index 1):
A semiconductor device comprising:\n a semiconductor substrate including a first main surface and a second main surface, which is provided with a substrate of a first conductivity type on a side of the second main surface and a semiconductor layer of a second conductivity type in contact with the above substrate; an element region defined on the side of the first main substrate of the semiconductor substrate; a semiconductor element formed in the element region to conduct current between the first main surface and the second main surface; a terminal region defined on the side of the first main surface of the semiconductor substrate and arranged to surround the element region; a first region of the first conductivity type formed in the terminal region to arrive at the substrate from the first main surface; a plurality of first buried insulators formed in the terminal region to arrive at a first depth from the first main surface; and a first column layer of the second conductivity type having a first dopant concentration which is formed in contact with the first region and the respective first buried insulators, wherein the first buried insulators are arranged in island shapes mutually at a distance from each other.

Metadata:
- Claim Count in Document: 14.0
- Percentile: 94.0
- Lexical Diversity: 2.05882
- Patent Class: 257.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15950977', '15057461', '13242970', '15608128', '14129998']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.9152370585678702
- 35 USC 102 Novelty (BERT): 0.5177361384500627
- Combined Prediction Score: 0.8754869665560894
- Mean Citation Score: 243.553056
- Max Citation Score: 324.1851200000001
- Similarity Product: 268.8959311203385

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

Dataset: test