PATENT CLAIM ANALYSIS

Application Number: 15758805
Application Type: Utility
Filing Date: 2018-03
Publication Date: 2019-03
Patent Classification: ["257", "077000"]

Abstract:
A semiconductor stack includes a substrate made of silicon carbide, and an epi layer disposed on the substrate and made of silicon carbide. An epi principal surface, which is a principal surface opposite to the substrate, of the epi layer is a carbon surface having an off angle of 4° or smaller relative to a c-plane. In the epi principal surface, a plurality of first recessed portions having a rectangular circumferential shape in a planar view is famed. Density of a second recessed portion that is formed in the first recessed portions and is a recessed portion deeper than the first recessed portions is lower than or equal to 10 cm −2  in the epi principal surface.

Claim (Index 4):
The semiconductor stack as claimed in  claim 2 , wherein the density of the second recessed portion exceeds 0 cm \u22122  in the epi principal surface.

Metadata:
- Claim Count in Document: 1.0
- Percentile: 90.0
- Lexical Diversity: 2.11864
- Patent Class: 257.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['12063875', '13814433', '11383526', '14085523', '13606893']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8937173517017022
- 35 USC 102 Novelty (BERT): 0.4671841903168855
- Combined Prediction Score: 0.8510640355632206
- Mean Citation Score: 109.288134
- Max Citation Score: 112.97717
- Similarity Product: 83.17950686663093

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

Dataset: test