PATENT CLAIM ANALYSIS

Application Number: 16044616
Application Type: Utility
Filing Date: 2018-07
Publication Date: 2020-01
Patent Classification: ["257", "421000"]

Abstract:
Integrated circuits and methods for fabricating integrated circuits with magnetic tunnel junction (MTJ) structures are provided. An exemplary method for fabricating an integrated circuit includes forming a magnetic tunnel junction (MTJ) structure and conformally forming a metal oxide encapsulation layer over and around the MTJ structure. The method further includes removing a portion of the metal oxide encapsulation layer over MTJ structure. Also, the method includes forming a conductive via over and in electrical communication with the top surface of the MTJ structure.

Claim (Index 1):
A method comprising:\n forming a passivation layer; forming a dielectric layer over the passivation layer, wherein the dielectric layer has an uppermost surface; forming a trench in the dielectric layer and the passivation layer; forming a conductive contact layer in the trench, wherein the conductive contact layer has an uppermost surface with a central portion and outer portions; forming a magnetic tunnel junction (MTJ) structure on the central portion of the conductive contact layer, wherein the MTJ structure has a first sidewall, a second sidewall, and a top surface extending from the first sidewall to the second sidewall; conformally depositing a titanium oxide encapsulation layer around on the first sidewall, the second sidewall, and the top surface of the MTJ structure, on the uppermost surface of the conductive contact layer, and on the uppermost surface of the dielectric layer, wherein the titanium oxide encapsulation layer includes a bottom surface that is coplanar with the uppermost surface of the conductive contact layer, and the bottom surface of the titanium oxide encapsulation layer directly contacts the outer portions of the uppermost surface of the conductive contact layer; depositing a dielectric material over the MTJ structure; etching the dielectric material to form a trench exposing the metal oxide encapsulation layer on the top surface of the MTJ structure; removing all of titanium oxide encapsulation layer from the top surface of the MTJ structure to expose the top surface of the MTJ structure; and after removing all of the titanium oxide encapsulation layer from the top surface of the MTJ structure to expose the top surface of MTJ structure, forming a conductive via in the trench that is in direct contact with the top surface of the MTJ structure.

Metadata:
- Claim Count in Document: 50.0
- Percentile: 95.0
- Lexical Diversity: 1.87755
- Patent Class: 257.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['14749165', '14261543', '14537955', '15789150', '15653180']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.9191046039765822
- 35 USC 102 Novelty (BERT): 0.4971993607835034
- Combined Prediction Score: 0.8769140796572744
- Mean Citation Score: 243.293796
- Max Citation Score: 274.09448
- Similarity Product: 227.2686296431732

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