PATENT CLAIM ANALYSIS

Application Number: 16026841
Application Type: Utility
Filing Date: 2018-07
Publication Date: 2018-11
Patent Classification: ["257", "197000"]

Abstract:
A collector layer of an HBT includes a high-concentration collector layer and a low-concentration collector layer thereon. The low-concentration collector layer includes a graded collector layer in which the energy band gap varies to narrow with increasing distance from the base layer. The electron affinity of the semiconductor material for the base layer is greater than that of the semiconductor material for the graded collector layer at the point of the largest energy band gap by about 0.15 eV or less. The electron velocity in the graded collector layer peaks at a certain electric field strength. In the graded collector layer, the strength of the quasi-electric field, an electric field that acts on electrons as a result of the varying energy band gap, is between about 0.3 times and about 1.8 times the peak electric field strength, the electric field strength at which the electron velocity peaks.

Claim (Index 15):
The heterojunction bipolar transistor according to  claim 11 , further comprising an n-type subcollector layer on the substrate, wherein:\n the collector layer, base layer, and emitter layer are stacked in this order on part of a surface region of the subcollector layer, and the high-concentration collector layer includes a first layer on a subcollector layer side and a second layer on a low-concentration collector layer side; and a dopant concentration of the first layer and a dopant concentration of the subcollector layer are higher than a dopant concentration of the second layer.

Metadata:
- Claim Count in Document: 32.0
- Percentile: 95.0
- Lexical Diversity: 2.32836
- Patent Class: 257.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15898440', '10121444', '10969804', '11039299', '11459508']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.9273262378527182
- 35 USC 102 Novelty (BERT): 0.5923976911316777
- Combined Prediction Score: 0.8938333831806141
- Mean Citation Score: 365.646588
- Max Citation Score: 542.1992
- Similarity Product: 441.26787390193937

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