PATENT CLAIM ANALYSIS

Application Number: 15898669
Application Type: Utility
Filing Date: 2018-02
Publication Date: 2019-08
Patent Classification: ["257", "369000"]

Abstract:
A transistor, such as laterally diffused (LD) transistor, having a band region below a drift well is disclosed. The band region and drift well are oppositely doped. The band region is self-aligned to the drift well. The band region reduces the depth of the drift well. A shallower drift well reduces risk of punch-through, improving reliability. In addition, the shallower drift well reduces the drain to body parasitic capacitance which improves performance.

Claim (Index 19):
The method of  claim 15  wherein:\n forming the self-aligned band region comprises performing a quad implant; \n an inner band region edge along a channel width direction of the device region extends farther under the gate of the transistor than an inner drift well edge of the drift well along the channel width direction; and \n a band region portion which extends farther under the gate of the transistor than the inner drift well edge extends almost to the top surface of the substrate.

Metadata:
- Claim Count in Document: 20.0
- Percentile: 88.0
- Lexical Diversity: 1.86667
- Patent Class: 257.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: False
- Related Applications: ['15842899', '14983583', '13803091', '15898671', '11551887']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.9271218748201128
- 35 USC 102 Novelty (BERT): 0.5102727770700671
- Combined Prediction Score: 0.8854369650451082
- Mean Citation Score: 238.060854
- Max Citation Score: 246.22734
- Similarity Product: 150.70391231347202

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