PATENT CLAIM ANALYSIS

Application Number: 15948289
Application Type: Utility
Filing Date: 2018-04
Publication Date: 2019-10
Patent Classification: ["438", "138000"]

Abstract:
A method of manufacturing a semiconductor device includes: etching a plurality of trenches to a first depth in a semiconductor substrate; doping a region of the semiconductor substrate surrounding a bottom of the trenches at the first depth to form a doped region in the semiconductor substrate; after the doped region is formed, etching the plurality of trenches deeper into the semiconductor substrate to a second depth greater than the first depth, adjacent ones of the trenches being separated from one another by a semiconductor mesa; and forming a body region above the doped region in the semiconductor mesas.

Claim (Index 10):
The method of  claim 9 , wherein the protection layer or stack of protection layers is removed from the trenches after etching the trenches deeper into the semiconductor substrate to the second depth, so that the sidewalls of the trenches have a step at the first depth.

Metadata:
- Claim Count in Document: 13.0
- Percentile: 91.0
- Lexical Diversity: 2.12
- Patent Class: 438.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: False
- Related Applications: ['15223834', '10786107', '13585059', '15635433', '14201525']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8696948695325081
- 35 USC 102 Novelty (BERT): 0.490917237993326
- Combined Prediction Score: 0.8318171063785899
- Mean Citation Score: 202.437618
- Max Citation Score: 210.92303
- Similarity Product: 151.22676017831918

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