PATENT CLAIM ANALYSIS

Application Number: 16052768
Application Type: Utility
Filing Date: 2018-08
Publication Date: 2020-02
Patent Classification: ["null", "null"]

Abstract:
A semiconductor device includes an epitaxial layer disposed over a semiconductor substrate, a drift region disposed in the epitaxial layer and adjacent to an upper surface of the epitaxial layer, a gate structure disposed over the epitaxial layer, a source region disposed in the epitaxial layer outside the drift region, and a drain region disposed in the drift region. The epitaxial layer and the drift region have a first conductivity type. The semiconductor device also includes a plurality of doped region pairs disposed in the drift region and arranged in a direction from the drain region toward the source region. Each of the plurality of doped region pairs includes a first doped region having a second conductivity type opposite to the first conductivity type, and a second doped region disposed over the first doped region. The second doped region has the first conductivity type.

Claim (Index 12):
A method for fabricating a semiconductor device, comprising:\n forming an epitaxial layer over a semiconductor substrate, wherein the epitaxial layer has a first conductivity type; forming a plurality of doped region pairs in the epitaxial layer, wherein each of the plurality of doped region pairs comprises:\n a first doped region having a second conductivity type opposite to the first conductivity type; and \n a second doped region formed over the first doped region, wherein the second doped region has a first conductivity type, and the second doped regions of the plurality of doped region pairs are located at a same depth; \n forming a drift region in the epitaxial layer and adjacent to an upper surface of the epitaxial layer, wherein the drift region has the first conductivity type and the plurality of doped region pairs are located in the drift region; forming a gate structure over the epitaxial layer, wherein the gate structure partially covers the drift region; forming a source region in the epitaxial layer outside the drift region; and forming a drain region in the drift region, wherein the plurality of doped region pairs are arranged in a direction from the drain region toward the source region.

Metadata:
- Claim Count in Document: 17.0
- Percentile: 96.0
- Lexical Diversity: 3.34783
- Patent Class: nan
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['14808991', '14086633', '14054549', '12891485', '13905677']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.6075568530570289
- 35 USC 102 Novelty (BERT): 0.4885318766807746
- Combined Prediction Score: 0.5956543554194035
- Mean Citation Score: 274.73177200000003
- Max Citation Score: 286.5652
- Similarity Product: 253.5771482733012

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