PATENT CLAIM ANALYSIS

Application Number: 15875132
Application Type: Utility
Filing Date: 2018-01
Publication Date: 2019-07
Patent Classification: ["257", "401000"]

Abstract:
A methodology for forming a single diffusion break structure in a FinFET device involves localized, in situ oxidation of a portion of a semiconductor fin. Fin oxidation within a fin cut region may be preceded by the formation of epitaxial source/drain regions over the fin, as well as by a gate cut module, where portions of a sacrificial gate that straddle the fin are replaced by an isolation layer. Localized oxidation of the fin enables the stress state in adjacent, un-oxidized portions of the fin to be retained, which may beneficially impact carrier mobility and hence conductivity within channel portions of the fin.

Claim (Index 8):
A method of forming a device, comprising:\n forming a plurality of fins over a semiconductor substrate; forming a sacrificial gate structure over the fins; forming an interlayer dielectric over the sacrificial gate structure; planarizing the interlayer dielectric to expose the sacrificial gate structure; forming a mask layer over the interlayer dielectric and above the sacrificial gate structure; forming an opening in the mask layer to expose a portion of the fins; oxidizing at least an entire cross-section of the exposed portion of the fins above the semiconductor substrate to form a single diffusion break (SDB) layer on an entire surface of the fins, wherein each SDB layer electrically separates a first portion of each fin from a second portion of each fin horizontally opposite the SDB layer; and forming a dielectric layer over the the fins after forming the SDB layer on the entire surface of each fin.

Metadata:
- Claim Count in Document: 2.0
- Percentile: 86.0
- Lexical Diversity: 1.65672
- Patent Class: 257.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15860840', '15643940', '15337189', '15486387', '15812288']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.9330648999208336
- 35 USC 102 Novelty (BERT): 0.5230540602410183
- Combined Prediction Score: 0.8920638159528522
- Mean Citation Score: 342.12181
- Max Citation Score: 347.7702
- Similarity Product: 285.2741894014835

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