PATENT CLAIM ANALYSIS

Application Number: 16036597
Application Type: Utility
Filing Date: 2018-07
Publication Date: 2018-11
Patent Classification: ["257", "076000"]

Abstract:
In an HEMT device, a gate region is formed in a wafer having a channel layer, a barrier layer, and a passivation layer, overlying each other. Drain and source electrodes are formed in the wafer, on different sides of the gate region. A dielectric layer is formed over the gate region and over the passivation layer. Selective portions of the dielectric layer are removed by a plurality of etches so as to form one or more cavities between the gate region and the drain electrode. The one or more cavities have a plurality of steps at an increasing distance from the wafer moving from the gate region to the drain electrode. The cavity is then filled with conductive material to form a field plate coupled to the source electrode, extending over the gate region, and having a surface facing the wafer and having a plurality of steps.

Claim (Index 8):
A method of forming heterostructure field-effect transistor, comprising:\n forming source and drain electrodes extending in a body including a channel layer of a first semiconductor material; a barrier layer of a second semiconductor material, over the channel layer; and a passivation layer, over the barrier layer; forming a gate region extending in the body between the source and drain electrodes; forming a dielectric layer over the gate region and over the passivation layer; and forming a field plate of conductive material coupled to the source electrode and extending inside the dielectric layer in an area comprised between the gate region and the drain electrode, the field plate having a surface facing the wafer and having a plurality of steps, wherein the field plate comprises a plurality of projecting fingers, distinct from each other, extending inside the dielectric layer towards the body.

Metadata:
- Claim Count in Document: 4.0
- Percentile: 95.0
- Lexical Diversity: 2.25352
- Patent Class: 257.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15371012', '15393945', '15156740', '15832680', '13525644']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.91231641178525
- 35 USC 102 Novelty (BERT): 0.5050355533129813
- Combined Prediction Score: 0.871588325938023
- Mean Citation Score: 219.07079600000003
- Max Citation Score: 306.8578
- Similarity Product: 284.67583510191434

Labels:
- Claim Label 101: 1
- Claim Label 102: 0
- Claim Label 103: 1
- Claim Label 112: 1
- Combined Label: 0
- Label 101 Adjusted: 1

Dataset: test