PATENT CLAIM ANALYSIS

Application Number: 15893050
Application Type: Utility
Filing Date: 2018-02
Publication Date: 2018-06
Patent Classification: ["257", "774000"]

Abstract:
A device comprises a first protection layer over sidewalls and a bottom of a first trench in a first dielectric layer, a first barrier layer over the first protection layer, a first metal line in the first trench, a second protection layer over sidewalls and a bottom of a second trench in the first dielectric layer, a second barrier layer over the second protection layer, a second metal line in the first trench, an air gap between the first trench and the second trench and a third protection layer over sidewalls of a third trench in the first dielectric layer, wherein the first protection layer, the second protection layer and the third protection are formed of a same material.

Claim (Index 16):
A method, comprising:\n etching a plurality of trenches in a first dielectric layer; lining the plurality of trenches with a protective layer; after the lining the plurality of trenches with the protective layer, lining the plurality of trenches with a barrier layer; depositing a first conductive material in the plurality of trenches and over the first dielectric layer; planarizing the first conductive material and an upper portion of the first dielectric layer to separate the first conductive material in each of the plurality of trenches to form respective metal features in the plurality of trenches; etching an air gap trench between a first metal feature of the respective metal features and a second metal feature of the respective metal features, the first metal feature being adjacent to the second metal feature, wherein the protective layer of the first metal feature protects the barrier layer of the first metal feature and the protective layer of the second metal feature protects the barrier layer of the second metal feature during etching the air gap trench; and depositing a second dielectric layer over the air gap trench to form a first air gap in the first dielectric layer.

Metadata:
- Claim Count in Document: 50.0
- Percentile: 88.0
- Lexical Diversity: 4.0
- Patent Class: 257.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['14497052', '14080030', '15442282', '14334929', '13791076']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.9182657129680958
- 35 USC 102 Novelty (BERT): 0.516843742534405
- Combined Prediction Score: 0.8781235159247267
- Mean Citation Score: 249.30957
- Max Citation Score: 316.622
- Similarity Product: 234.4928543548584

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