PATENT CLAIM ANALYSIS

Application Number: 15897524
Application Type: Utility
Filing Date: 2018-02
Publication Date: 2018-06
Patent Classification: ["438", "155000"]

Abstract:
Bipolar transistors and MOS transistors are formed in a common process. A semiconductor layer is arranged on an insulating layer. On a side of the bipolar transistors: an insulating region including the insulating layer is formed; openings are etched through the insulating region to delimit insulating walls; the openings are filled with first epitaxial portions; and the first epitaxial portions and a first region extending under the first epitaxial portions and under the insulating walls are doped. On the side of the bipolar transistors and on a side of the MOS transistors: gate structures are formed; second epitaxial portions are made; and the second epitaxial portions covering the first epitaxial portions are doped.

Claim (Index 1):
A method of forming a vertical bipolar transistor and a MOS transistor supported by a substrate including a semiconductor layer arranged on an insulating layer covering a semiconductor substrate doped with a first conductivity type, comprising the steps of:\n for the vertical bipolar transistor:\n a) etching an opening extending through the insulating region; \n b) epitaxially growing a first epitaxial portion from the semiconductor substrate which fills the opening; and \n c) doping the first epitaxial portion and a portion of the semiconductor substrate with a second conductivity type; \n for the MOS transistor:\n d) forming a transistor gate extending over the semiconductor layer; and \n for both the vertical bipolar transistor and the MOS transistor:\n e) epitaxially growing second epitaxial portions from both the semiconductor layer and the first epitaxial portion; \n wherein the second epitaxial portion over the first epitaxial portion forms an emitter of the bipolar transistor and wherein the second epitaxial portions on each side of the transistor gate form source and drain regions of the MOS transistor.

Metadata:
- Claim Count in Document: 1.0
- Percentile: 88.0
- Lexical Diversity: 2.6383
- Patent Class: 438.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15454788', '10719195', '10581127', '11761164', '10784417']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.841169470072803
- 35 USC 102 Novelty (BERT): 0.5206352957068526
- Combined Prediction Score: 0.809116052636208
- Mean Citation Score: 253.66796
- Max Citation Score: 320.62524
- Similarity Product: 274.6257709028292

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