PATENT CLAIM ANALYSIS

Application Number: 16184734
Application Type: Utility
Filing Date: 2018-11
Publication Date: 2019-03
Patent Classification: ["257", "077000"]

Abstract:
A method of producing a semiconductor device including steps (A) and (B). Step (A) is preparing a semiconductor epitaxial wafer including a plurality of device regions, each including a body region contacting a semiconductor layer. Step (B) is forming a channel layer contacting at least a part of the body region by epitaxial growth of a semiconductor on a surface of the semiconductor layer. The channel layer contains an impurity at a concentration ranging from 1×10 18  cm −3  to 1×10 19  cm −3 , inclusive, and has a thickness ranging from 10 nm to 100 nm, inclusive. In the step (B), a condition for the epitaxial growth is controlled so that, in a plane parallel to the main surface of the semiconductor wafer, a thickness distribution in the channel layer and a concentration distribution of the impurity in the channel layer are negatively correlated to each other.

Claim (Index 2):
The method according to  claim 1 , further comprising a step of (C) forming a gate insulation film on the channel layer,\n wherein, in the steps of (B) and (C), the condition for the epitaxial growth and a condition for forming the gate insulation film are controlled so that, in the plane parallel to the main surface of the semiconductor wafer, the thickness distribution in the channel layer and a thickness distribution in the gate insulation film are positively correlated to each other.

Metadata:
- Claim Count in Document: 5.0
- Percentile: 98.0
- Lexical Diversity: 2.34722
- Patent Class: 257.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15896490', '15397677', '14122823', '14897247', '15394950']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.9296876602403326
- 35 USC 102 Novelty (BERT): 0.5755287505839359
- Combined Prediction Score: 0.8942717692746929
- Mean Citation Score: 344.54284399999995
- Max Citation Score: 478.881
- Similarity Product: 407.80018426394463

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