PATENT CLAIM ANALYSIS

Application Number: 15955122
Application Type: Utility
Filing Date: 2018-04
Publication Date: 2018-08
Patent Classification: ["257", "336000"]

Abstract:
An integrated circuit containing an extended drain MOS transistor which has a drift layer, an upper RESURF layer over and contacting an upper surface of the drift layer, and a buried drain extension below the drift layer which is electrically connected to the drift layer at the drain end and separated from the drift layer at the channel end. A lower RESURF layer may be formed between the drift layer and the buried drain extension at the channel end. Any of the upper RESURF layer, the drift layer, the lower RESURF layer and the buried drain extension may have a graded doping density from the drain end to the channel end. A process of forming an integrated circuit containing an extended drain MOS transistor which has the drift layer, the upper RESURF layer, and the buried drain extension.

Claim (Index 1):
An integrated circuit, comprising:\n a semiconductor substrate having a first conductivity type; and an extended drain metal oxide semiconductor (EDMOS) transistor, including:\n a drain region having a second conductivity type opposite of the first conductivity type; \n a drain layer extending from and under the drain region, the drain layer having the second conductivity type; \n a source region separated from the drain layer, the source region having the second conductivity type; \n a first doped region positioned within the drain layer and separated from the source region and the drain region, the first doped region having the first conductivity type; and \n a second doped region under the first doped region and the drain layer, the second doped region separated from and extending below the source region, the second doped region having the first conductivity type, \n wherein the first doped region is closer to the drain region along a lateral direction than the second doped region.

Metadata:
- Claim Count in Document: 50.0
- Percentile: 91.0
- Lexical Diversity: 3.02041
- Patent Class: 257.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15182658', '14559239', '13922381', '13284054', '14073472']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.9199704581777944
- 35 USC 102 Novelty (BERT): 0.6066183166781318
- Combined Prediction Score: 0.888635244027828
- Mean Citation Score: 400.144908
- Max Citation Score: 522.22766
- Similarity Product: 494.73662014753336

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