PATENT CLAIM ANALYSIS

Application Number: 15871296
Application Type: Utility
Filing Date: 2018-01
Publication Date: 2018-07
Patent Classification: ["257", "330000"]

Abstract:
A semiconductor device can include: a substrate having a semiconductor material; a plurality of semiconductor layers of a first conductivity type, and being sequentially stacked on the substrate, where a doping concentration of the semiconductor layers successively increases from bottom to top; a trench that extends from the surface of a topmost semiconductor layer into a bottommost semiconductor layer of the semiconductor layers; a plurality of field plates that correspond to the semiconductor layers, each field plate being located in a portion of the trench that corresponds to one of the semiconductor layers; and a trench pad located in a bottom and a sidewall of the trench, and being filled each space between two adjacent field plates, where the thickness of the trench pad between each field plate and corresponding semiconductor layer sequentially decreases from the bottom to the top.

Claim (Index 11):
The method of  claim 10 , further comprising:\n a) depositing a third oxide layer on said second portion of said trench pad, said second field plate, and the sidewalls of said trench; b) forming an isolation dielectric layer by chemical mechanical polishing and etching; c) forming a fourth oxide layer on said isolation dielectric layer and the sidewalls of said trench; d) depositing a third polysilicon layer in said trench with said fourth oxide layer; and e) etching back said third polysilicon layer, wherein the remaining said third polysilicon layer is configured as a gate of said semiconductor device, and said fourth oxide layer is configured as a gate dielectric layer of said semiconductor device.

Metadata:
- Claim Count in Document: 29.0
- Percentile: 86.0
- Lexical Diversity: 2.43548
- Patent Class: 257.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['14747681', '11375975', '15679195', '13673458', '13242970']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.9121457818546128
- 35 USC 102 Novelty (BERT): 0.4741151810260225
- Combined Prediction Score: 0.8683427217717539
- Mean Citation Score: 183.004078
- Max Citation Score: 191.66199
- Similarity Product: 149.57886187002003

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