PATENT CLAIM ANALYSIS

Application Number: 15867379
Application Type: Utility
Filing Date: 2018-01
Publication Date: 2018-07
Patent Classification: ["257", "339000"]

Abstract:
A Lateral Diffusion Metal Oxide Semiconductor (LDMOS) device and its manufacturing method are presented. The LDMOS device comprises a first region that has a first conductivity type; a drift region that has a second conductivity type in the first region, wherein the second conductivity type is opposite to the first conductivity type; and a plurality of second regions that have the first conductivity type in the drift region, wherein the second regions are separated from each other and extend to the first region along a depth direction of the drift region. This LDMOS device has an higher Breakdown Voltage and thus better performance than conventional LDMOS devices.

Claim (Index 18):
The method of  claim 17 , wherein the semiconductor structure further comprises a first groove isolation and a second groove isolation in the first region, wherein after the drift region is formed, the second groove isolation is in the drift region, and after the well region is formed, the first groove isolation is in the well region, and wherein the source region is formed adjacent to the first groove isolation, and the drain region is formed adjacent to the second groove isolation.

Metadata:
- Claim Count in Document: 10.0
- Percentile: 86.0
- Lexical Diversity: 1.9661
- Patent Class: 257.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['14737692', '14602282', '12798572', '14576301', '13758076']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.9273087095837942
- 35 USC 102 Novelty (BERT): 0.5010674938688392
- Combined Prediction Score: 0.8846845880122987
- Mean Citation Score: 237.924942
- Max Citation Score: 243.1245
- Similarity Product: 169.7379152685106

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