PATENT CLAIM ANALYSIS

Application Number: 16006905
Application Type: Utility
Filing Date: 2018-06
Publication Date: 2018-10
Patent Classification: ["257", "329000"]

Abstract:
Low temperature epitaxial silicon deposition for forming the top source or drain regions of VTFET structures. The methods generally include epitaxially growing a silicon layer with a dopant at a temperature less 500° C. on a first surface and an additional surface to form a single crystalline silicon on the first surface and a polysilicon or amorphous silicon on the additional surface. The epitaxially grown silicon layer is then exposed to an etchant include HCl and germane at a temperature less than 500° C. for a period of time effective to selectively remove the polysilicon/amorphous silicon on the additional surface and form a germanium diffused region on and in an outer surface of the single crystalline silicon formed on the first surface.

Claim (Index 11):
A method for forming a semiconductor structure comprising:\n providing a substrate comprising a first surface comprising single crystalline silicon and at least one additional surface comprising a dielectric material; epitaxially growing a silicon layer with a dopant at a temperature less 500\u00b0 C. on the substrate to form a single crystalline silicon on the first surface and a polysilicon/amorphous silicon on the additional surface; and exposing the epitaxially grown silicon layer to an etchant comprising HCl and germane at a temperature less than 500\u00b0 C. for a period of time effective to selectively remove the polysilicon/amorphous silicon on the additional surface and form a germanium diffused region on and in an outer surface of the single crystalline silicon formed on the first surface, wherein the first surface is an exposed top surface of a vertically oriented channel region of a vertical finFET structure.

Metadata:
- Claim Count in Document: 1.0
- Percentile: 94.0
- Lexical Diversity: 1.98413
- Patent Class: 257.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15338653', '15674697', '15825656', '15332181', '15951510']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.9089272805438012
- 35 USC 102 Novelty (BERT): 0.597165428791873
- Combined Prediction Score: 0.8777510953686084
- Mean Citation Score: 338.925028
- Max Citation Score: 527.0812400000002
- Similarity Product: 440.99534471284414

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