PATENT CLAIM ANALYSIS

Application Number: 15883503
Application Type: Utility
Filing Date: 2018-01
Publication Date: 2019-08
Patent Classification: ["257", "401000"]

Abstract:
A method of forming gate structures to a nanosheet device that includes forming at least two stacks of nanosheets, wherein each nanosheet includes a channel region portion having a gate dielectric layer present thereon. The method may further include forming a dual metal layer scheme on the gate dielectric layer of each nanosheet. The dual metal layer scheme including an etch stop layer of a first composition and a work function adjusting layer of a second composition, wherein the etch stop layer has a composition that provides that the work function adjusting layer is removable by a wet etch chemistry that is selective to the etch stop layer.

Claim (Index 1):
A method for forming gate structures to nanosheet semiconductor devices comprising:\n forming at least two stacks of nanosheets, wherein each nanosheet in each of said at least two stacks of nanosheets includes a gate dielectric layer present on a channel region portion of each nanosheet; and forming a dual metal layer scheme on the gate dielectric layer of each nano sheet, the dual metal layer scheme comprising an etch stop layer of a first composition and a work function adjusting layer of a second composition, wherein the etch stop layer has a composition that provides that the work function adjusting layer is removable by a wet etch chemistry that is selective to the etch stop layer.

Metadata:
- Claim Count in Document: 6.0
- Percentile: 86.0
- Lexical Diversity: 1.98246
- Patent Class: 257.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15819567', '15802067', '15801967', '15802021', '15602225']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.9310890820483532
- 35 USC 102 Novelty (BERT): 0.521571915644198
- Combined Prediction Score: 0.8901373654079376
- Mean Citation Score: 331.928208
- Max Citation Score: 344.4151
- Similarity Product: 290.9535402350783

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