PATENT CLAIM ANALYSIS

Application Number: 15755489
Application Type: Utility
Filing Date: 2018-02
Publication Date: 2018-08
Patent Classification: ["257", "401000"]

Abstract:
III-V compound semiconductor devices, such transistors, may be formed in active regions of a III-V semiconductor material disposed over a silicon substrate. A heterojunction between an active region of III-V semiconductor and the substrate provides a diffusion barrier retarding diffusion of silicon from the substrate into III-V semiconductor material where the silicon might otherwise behave as an electrically active amphoteric contaminate. In some embodiments, the heterojunction is provided within a base portion of a sub-fin disposed between the substrate and a fin containing a transistor channel region. The heterojunction positioned closer to the substrate than active fin region ensures thermal diffusion of silicon atoms is contained away from the active region of a III-V finFET.

Claim (Index 35):
A device including integrated circuitry, comprising:\n a plurality of n-type transistors, each including:\n an active region in a III-V semiconductor fin between source and drain region; \n a gate electrode over at least a portion of the active region; and \n source and drain contacts coupled to the source and drain regions, wherein: \n a sub-fin is disposed between the fin and a silicon substrate, the sub-fin further comprising:\n a first sub-fin layer of III-V semiconductor material over the substrate; \n a second sub-fin layer of III-V semiconductor material over the first sub-fin layer; and \n a third sub-fin layer of III-V semiconductor material between the first and second sub-fin layers, wherein the third layer is of a III-V alloy composition associated with a band gap having a conduction band offset (CBO) from that of the first sub-fin layer; and \n \n a plurality of p-type transistors electrically coupled to the plurality of n-type transistors.

Metadata:
- Claim Count in Document: 20.0
- Percentile: 88.0
- Lexical Diversity: 1.84848
- Patent Class: 257.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15755448', '15575111', '15073245', '15574820', '15579180']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.9105439148255562
- 35 USC 102 Novelty (BERT): 0.544307420113747
- Combined Prediction Score: 0.8739202653543753
- Mean Citation Score: 273.713004
- Max Citation Score: 396.9212
- Similarity Product: 340.46072018311025

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