PATENT CLAIM ANALYSIS

Application Number: 16264540
Application Type: Utility
Filing Date: 2019-01
Publication Date: 2019-06
Patent Classification: ["257", "334000"]

Abstract:
A trench MOSFET device is fabricated with body source regions that undulate along a channel width direction of the MOSFET device such that the body region and source region have variations in depth along the channel width direction. The undulations increase a channel width of the MOSFET device.

Claim (Index 6):
The method of  claim 1 , wherein forming a body region of a second conductivity type opposite to the first conductivity type provided in portions of the lightly doped epitaxial layer comprises:\n forming a layer of a first insulating material over the lightly doped epitaxial layer; forming a layer of a second insulating material over the layer of the first insulating material, wherein the layer of the first insulating material is resistant to an etch process that etches the layer of the second insulating material; forming a third mask on the lightly doped epitaxial layer, wherein the third mask has an opening to define the first undulation; and implanting dopants of the second conductivity into the lightly doped epitaxial layer to form the body region, wherein the dopants of the second conductivity are implanted deeper into the lightly doped epitaxial layer under the opening to form the first undulation.

Metadata:
- Claim Count in Document: 1.0
- Percentile: 99.0
- Lexical Diversity: 1.66667
- Patent Class: 257.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: False
- Related Applications: ['15364827', '15199828', '15620717', '12484166', '13024256']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.9222182618132976
- 35 USC 102 Novelty (BERT): 0.5290063041858226
- Combined Prediction Score: 0.8828970660505502
- Mean Citation Score: 207.6153
- Max Citation Score: 289.33646
- Similarity Product: 199.91017364008425

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