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 1):
A device comprising:\n a substrate with a device region; a gate disposed on a top surface of the substrate in the device region, the gate having first and second gate sidewalls; a first source/drain (S/D) region disposed adjacent to the first gate sidewall; a second S/D region disposed adjacent to the second gate sidewall; a device well disposed in the substrate in the device region, the device well encompasses the first S/D region and extends partially under the gate from the first gate sidewall, the device well has a device well depth; a drift well disposed in the device region, the drift well encompasses the second S/D region and extends under the gate and abuts the device well, the drift well includes a drift well depth which is shallower than the device well depth; and a self-aligned band region disposed below the drift well, the self-aligned band region includes a band region depth which is equal to about the device well depth.

Metadata:
- Claim Count in Document: 20.0
- Percentile: 88.0
- Lexical Diversity: 1.86667
- Patent Class: 257.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15842899', '14983583', '13803091', '15898671', '11551887']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.9204806496659854
- 35 USC 102 Novelty (BERT): 0.4806519942556216
- Combined Prediction Score: 0.876497784124949
- Mean Citation Score: 238.060854
- Max Citation Score: 246.22734
- Similarity Product: 219.6315486330413

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