PATENT CLAIM ANALYSIS

Application Number: 15957702
Application Type: Utility
Filing Date: 2018-04
Publication Date: 2018-08
Patent Classification: ["257", "198000"]

Abstract:
A bipolar transistor has a subcollector layer and a stack of collector, base, and emitter layers on the subcollector layer. On the subcollector layer are collector electrodes. On the base layer are base electrodes. The collector layer includes multiple doped layers with graded impurity concentrations, higher on the subcollector layer side and lower on the base layer side. Of these doped layers, the one having the highest impurity concentration is in contact with the subcollector layer and has a sheet resistance less than or equal to about nine times that of the subcollector layer.

Claim (Index 1):
A bipolar transistor comprising:\n a subcollector layer having first and second subcollector layer surfaces on opposite sides, and collector electrodes on the first subcollector layer surface; a base layer having first and second base layer surfaces on opposite sides, and base electrodes on the first base layer surface; a collector layer including a plurality of doped layers, and having first and second collector layer surfaces on opposite sides, with the first and second collector layer surfaces in contact with the second base layer surface and the first subcollector layer surface, respectively, the plurality of doped layers including a first doped layer that has a highest impurity concentration thereamong and is on a side of or in contact with the first subcollector layer surface, the first doped layer having a thickness from about 1/9 to about 10 times a thickness of the subcollector layer; and an emitter layer on the first base layer surface.

Metadata:
- Claim Count in Document: 3.0
- Percentile: 91.0
- Lexical Diversity: 1.98077
- Patent Class: 257.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15694111', '11941100', '11066220', '10995255', '10975957']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.91274256523124
- 35 USC 102 Novelty (BERT): 0.5958362348201429
- Combined Prediction Score: 0.8810519321901303
- Mean Citation Score: 351.886492
- Max Citation Score: 495.16922
- Similarity Product: 472.0469420839691

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