PATENT CLAIM ANALYSIS

Application Number: 15882017
Application Type: Utility
Filing Date: 2018-01
Publication Date: 2018-08
Patent Classification: ["257", "076000"]

Abstract:
A vertical JFET is provided. The JFET is mixed with lateral channel structure and p-GaN gate structure. The JFET has an improved barrier layer for p-GaN block layer and enhanced Ohmic contact with source. In one embodiment, regrowth of lateral channel is provided so that counter doping surface Mg will be buried. In another embodiment, a dielectric layer is provided to protect p-type block layer during the processing, and later make Ohmic source and p-type block layer. Method of a barrier regrown layer for enhanced lateral channel performance is provided where a regrown barrier layer is deposited over the drift layer. The barrier regrown layer is an anti-p-doping layer. Method of a patterned regrowth for enhanced Ohmic contact is provided where a patterned masked is used for the regrowth.

Claim (Index 1):
An apparatus comprising:\n a drain metal deposited over a backside of an N substrate; an n-type drift layer epitaxial grown over a topside of the N substrate; a buried P-type block layer deposited over the n-type drift layer, wherein the buried P-type block layer has cut through trenches; a first regrown N-type layer deposited on top of the buried P-type block layer with a contact gap, wherein the first regrown N-type layer forms a barrier layer; and a second regrown layer deposited over the first regrown N-type layer adopted to fill the cut through trenches and form a lateral channel.

Metadata:
- Claim Count in Document: 7.0
- Percentile: 86.0
- Lexical Diversity: 2.22222
- Patent Class: 257.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15882040', '12818281', '13527885', '13613295', '13498767']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.9210194162179264
- 35 USC 102 Novelty (BERT): 0.5439673913285218
- Combined Prediction Score: 0.8833142137289858
- Mean Citation Score: 291.615682
- Max Citation Score: 402.8479
- Similarity Product: 323.7776815144062

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