PATENT CLAIM ANALYSIS

Application Number: 15913068
Application Type: Utility
Filing Date: 2018-03
Publication Date: 2019-09
Patent Classification: ["257", "194000"]

Abstract:
A method of forming a semiconductor device includes providing a heterojunction semiconductor body. The heterojunction semiconductor body includes a first type III-V semiconductor layer and a second type III-V semiconductor layer formed over the first type III-V semiconductor layer. The second type III-V semiconductor layer has a different bandgap as the first type III-V semiconductor layer such that a first two-dimensional charge carrier gas forms at an interface between the first and second type III-V semiconductor layers. The second type III-V semiconductor layer has a thicker section and a thinner section. A first input-output electrode is formed on the thicker section. A gate structure and a second input-output are formed on the thinner section. The gate structure is laterally spaced apart from a transition between the thicker and thinner sections of the second type III-V semiconductor layer.

Claim (Index 1):
A method of forming a semiconductor device, the method comprising:\n providing a heterojunction semiconductor body, the heterojunction semiconductor body comprising a first type III-V semiconductor layer and a second type III-V semiconductor layer formed over the first type III-V semiconductor layer, the second type III-V semiconductor layer having a different bandgap as the first type III-V semiconductor layer such that a first two-dimensional charge carrier gas forms at an interface between the first and second type III-V semiconductor layers, wherein the heterojunction semiconductor body is provided such that the second type III-V semiconductor layer comprises a thicker section and a thinner section, forming a first input-output electrode on the thicker section of the second type III-V semiconductor layer, the first input-output electrode being in ohmic contact with the first two-dimensional charge carrier gas; forming a second input-output electrode on the thinner section of the second type III-V semiconductor layer, the second input-output electrode being in ohmic contact with the first two-dimensional charge carrier gas; and forming a gate structure on the thinner section of the second type III-V semiconductor layer, the gate structure being configured to control a conductive connection between the first and second input-output electrodes, wherein the gate structure is laterally spaced apart from a transition between the thicker and thinner sections of the second type III-V semiconductor layer, wherein the thinner section of the second type III-V semiconductor layer comprises a first planar upper surface that extends along a single plane and reaches the transition, the first planar upper surface being opposite from a lower surface of the second type III-V semiconductor layer that faces the first type III-V semiconductor layer, and wherein the gate structure and the second input-output electrode are formed on the first planar upper surface, wherein forming the gate structure comprises:\n forming a first doped type III-V semiconductor region on the first planar upper surface; and \n forming an electrically conductive gate electrode on the first doped type III-V semiconductor region, and \n wherein a complete lower side of the first doped type III-V semiconductor region faces and is coplanar with the first planar upper surface, and wherein material properties of the first doped III-V semiconductor region locally deplete the first two-dimensional charge carrier gas in the absence of external bias such that the semiconductor device is normally-off.

Metadata:
- Claim Count in Document: 1.0
- Percentile: 90.0
- Lexical Diversity: 2.66667
- Patent Class: 257.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15913284', '15361610', '15629783', '15704134', '14478287']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.910402701566316
- 35 USC 102 Novelty (BERT): 0.5491617173387625
- Combined Prediction Score: 0.8742786031435605
- Mean Citation Score: 307.4716620000001
- Max Citation Score: 393.22595
- Similarity Product: 363.3304982273906

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