PATENT CLAIM ANALYSIS

Application Number: 16019047
Application Type: Utility
Filing Date: 2018-06
Publication Date: 2018-10
Patent Classification: ["257", "139000"]

Abstract:
The present invention makes it possible, in a manufacturing process of a semiconductor device, to inhibit: impurities from diffusing from a substrate to a semiconductor layer; and the withstand voltage of a transistor from deteriorating. In the present invention, a first electrically conductive type epitaxial layer is formed over a first electrically conductive type base substrate. The impurity concentration of the epitaxial layer is lower than that of the base substrate. A second electrically conductive type first embedded layer and a second electrically conductive type second embedded layer are formed in the epitaxial layer. The second embedded layer is deeper than the first embedded layer, is kept away from the first embedded layer, and has an impurity concentration lower than the first embedded layer. A transistor is further formed in the epitaxial layer.

Claim (Index 2):
A semiconductor device according to  claim 1 ,\n wherein the semiconductor device has trenches being formed in the semiconductor layer and surrounding the transistors and an insulating film embedded into the trenches; and the bottom faces of the trenches are located at positions shallower than the second embodiment layer.

Metadata:
- Claim Count in Document: 5.0
- Percentile: 94.0
- Lexical Diversity: 2.65455
- Patent Class: 257.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['14712894', '14704355', '14752880', '14804819', '14204145']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.9120149815242968
- 35 USC 102 Novelty (BERT): 0.5329354899333582
- Combined Prediction Score: 0.874107032365203
- Mean Citation Score: 226.681948
- Max Citation Score: 356.01813
- Similarity Product: 293.21969162668705

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