PATENT CLAIM ANALYSIS

Application Number: 15957193
Application Type: Utility
Filing Date: 2018-04
Publication Date: 2018-11
Patent Classification: ["257", "546000"]

Abstract:
Semiconductor device and methods for making the devices includes a buried layer of a first conductivity in a substrate in which a distance between two adjacent ends can be selected to achieve a desired breakdown voltage. A deep well having a first doping concentration of a second conductivity type is implanted in an epitaxial layer above the two adjacent ends of the buried layer. A patterned doped region is formed in the deep well and extending into the epitaxial layer above and separated a distance from the two adjacent ends of the buried lay. The patterned doped region has a second doping concentration of the second conductivity type that is greater than the first doping concentration.

Claim (Index 11):
A method of making a semiconductor device, comprising:\n masking a section of a substrate with a first mask; implanting a buried layer of a first conductivity type in the substrate, wherein a first portion of the buried layer is separated a distance from a second portion of the buried layer due to the first mask; removing the first mask; annealing the buried layer, thereby decreasing the distance between the first and second portions of the buried layer; forming an epitaxial layer of a second conductivity type over the buried layer; masking a section of the substrate with a second mask; implanting a deep well in the epitaxial layer of material over the first and second portions of the buried layer, the deep well having the second conductivity type of a first doping concentration; removing the second mask; masking a section of the substrate with a third mask that includes an opening over the deep well and the first and second portions of the buried layer; and implanting a patterned doped region in the deep well over the first and second portions of the buried layer, wherein the patterned doped region has the second conductivity type of a second doping concentration that is greater than the first doping concentration and the patterned doped region extends through the deep well into the epitaxial layer but is separated from the first and second portions of the buried layer by a second distance.

Metadata:
- Claim Count in Document: 17.0
- Percentile: 91.0
- Lexical Diversity: 2.0339
- Patent Class: 257.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['14182937', '13480924', '14846168', '11967732', '13171040']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.9174014632323192
- 35 USC 102 Novelty (BERT): 0.4834331556649018
- Combined Prediction Score: 0.8740046324755775
- Mean Citation Score: 222.33757000000003
- Max Citation Score: 233.8363
- Similarity Product: 191.7261260664701

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