PATENT CLAIM ANALYSIS

Application Number: 15939832
Application Type: Utility
Filing Date: 2018-03
Publication Date: 2018-12
Patent Classification: ["257", "004000"]

Abstract:
The present disclosure relates to an RRAM device having an electrode with an oxygen barrier structure, which is configured to improve RRAM reliability by mitigating oxygen movement and thereby maintaining oxygen within close proximity of a dielectric data storage layer, and an associated method of formation. In some embodiments, the RRAM device has a bottom electrode disposed over a lower interconnect layer surrounded by a ILD layer. A dielectric data storage layer having a variable resistance is located above the bottom electrode, and a multi-layer top electrode disposed over the dielectric data storage layer. The multi-layer top electrode has conductive top electrode layers separated by an oxygen barrier structure configured to mitigate movement of oxygen within the multi-layer top electrode. By including an oxygen barrier structure within the top electrode, the reliability of the RRAM device is improved since oxygen is kept close to the dielectric data storage layer.

Claim (Index 18):
A method of forming a resistive random access memory (RRAM) device, comprising:\n forming one or more bottom electrode films over a lower interconnect layer comprised within a lower inter-level dielectric (ILD) layer; forming a dielectric data storage film having a variable resistance above the one or more bottom electrode films; forming a lower top electrode film comprising a metal over the dielectric data storage film; forming one or more oxygen barrier films over the lower top electrode film, wherein the one or more oxygen barrier films comprise one or more of a metal oxide film and a metal oxynitride film; and forming an upper top electrode film comprising a metal nitride over the one or more oxygen barrier films.

Metadata:
- Claim Count in Document: 8.0
- Percentile: 90.0
- Lexical Diversity: 2.37313
- Patent Class: 257.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15633101', '14940442', '15871559', '14242983', '15793095']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.920699881707546
- 35 USC 102 Novelty (BERT): 0.4923106869851268
- Combined Prediction Score: 0.8778609622353042
- Mean Citation Score: 250.722328
- Max Citation Score: 268.33224
- Similarity Product: 231.13691545935632

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