PATENT CLAIM ANALYSIS

Application Number: 15927962
Application Type: Utility
Filing Date: 2018-03
Publication Date: 2019-09
Patent Classification: ["257", "329000"]

Abstract:
High breakdown voltage devices are provided. In one aspect, a method of forming a device having a VTFET and a LDVTFET includes: forming a LDD in an LDVTFET region; patterning fin(s) in a VTFET region to a depth D1; patterning fin(s) in the LDVTFET region, through the LDD, to a depth D2>D1; forming bottom source/drains at a base of the VTFET/LDVTFET fins; burying the VTFET/LDVTFET fins in a gap fill dielectric; recessing the gap fill dielectric to full expose the VTFET fin(s) and partially expose the LDVTFET fin(s); forming bottom spacers directly on the bottom source/drains in the VTFET region and directly on the gap fill dielectric in the LDVTFET region; forming gates alongside the VTFET/LDVTFET fins; forming top spacers above the gates; and forming top source/drains above the top spacers. A one-step fin etch and devices having VTFET and long channel VTFETs are also provided.

Claim (Index 12):
A method of forming a device having a VTFET and a long channel VTFET, the method comprising the steps of:\n selectively patterning at least one fin in a VTFET region of a wafer to a depth D\u20321; selectively patterning at least one fin in a long channel VTFET region of the wafer to a depth D\u20322, wherein D\u20322>D\u20321; forming bottom source and drains at a base of the at least one fin in the VTFET region and the at least one fin in the long channel VTFET region; forming bottom spacers directly on the bottom source and drains in both the VTFET region and the long channel VTFET region of the wafer; forming gates alongside the at least one fin in the VTFET region and the at least one fin in the long channel VTFET region above the bottom spacers; forming top spacers above the gates; and forming top source and drains above the top spacers at tops of the at least one fin in the VTFET region and the at least one fin in the long channel VTFET region.

Metadata:
- Claim Count in Document: 20.0
- Percentile: 90.0
- Lexical Diversity: 2.62687
- Patent Class: 257.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15863000', '15879181', '15853769', '15853822', '15812807']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.9365591893751322
- 35 USC 102 Novelty (BERT): 0.5592765904604342
- Combined Prediction Score: 0.8988309294836624
- Mean Citation Score: 396.802862
- Max Citation Score: 438.43732
- Similarity Product: 393.75045177107575

Labels:
- Claim Label 101: 1
- Claim Label 102: 0
- Claim Label 103: 1
- Claim Label 112: 1
- Combined Label: 0
- Label 101 Adjusted: 1

Dataset: test