PATENT CLAIM ANALYSIS

Application Number: 15939025
Application Type: Utility
Filing Date: 2018-03
Publication Date: 2019-10
Patent Classification: ["257", "774000"]

Abstract:
In one exemplary aspect, a method comprises providing a semiconductor structure having a substrate, one or more first dielectric layers over the substrate, a first metal plug in the one or more first dielectric layers, and one or more second dielectric layers over the one or more first dielectric layers and the first metal plug. The method further comprises etching a via hole into the one or more second dielectric layers to expose the first metal plug, etching a top surface of the first metal plug to create a recess thereon, and applying a metal corrosion protectant comprising a metal corrosion inhibitor to the top surface of the first metal plug.

Claim (Index 7):
The method of  claim 5 , the wet etchant comprises one of carbon dioxide (CO 2 ) blended deionized (DI) water, ozone (O 3 ) blended DI water, and hydrogen peroxide (H 2 O 2 ) blended DI water, and wherein removing the metal corrosion protectant and the wet etchant comprises performing a rinsing process that uses isopropyl alcohol (IPA), acetone, methanol, or combinations thereof.

Metadata:
- Claim Count in Document: 19.0
- Percentile: 90.0
- Lexical Diversity: 2.64444
- Patent Class: 257.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: False
- Related Applications: ['14066889', '14175677', '15830008', '14316125', '15492113']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.9141946452438532
- 35 USC 102 Novelty (BERT): 0.47730946369579
- Combined Prediction Score: 0.8705061270890467
- Mean Citation Score: 133.73901199999997
- Max Citation Score: 134.93555
- Similarity Product: 91.31197996335626

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

Dataset: test