PATENT CLAIM ANALYSIS

Application Number: 15860121
Application Type: Utility
Filing Date: 2018-01
Publication Date: 2019-07
Patent Classification: ["257", "773000"]

Abstract:
Interconnect structures and methods for forming an interconnect structure. First and second metallization structures are formed in an intralayer dielectric layer. The intralayer dielectric layer is removed to form a cavity with an entrance between the first and second metallization structures. A dielectric layer is deposited on surfaces surrounding the cavity, over the first metallization structure, and over the second metallization structure. A sacrificial material is formed inside the cavity after the dielectric layer is deposited. A cap layer is deposited on the dielectric layer over the first metallization structure, the dielectric layer over the second metallization structure, and the sacrificial material inside the cavity to close the entrance to the cavity. After the cap layer is deposited, the sacrificial material is removed from the cavity. The dielectric layer and cap layer cooperate to encapsulate an air gap inside the cavity.

Claim (Index 1):
An interconnect structure comprising:\n a metallization level including a first metallization structure, a second metallization structure, and a first cavity with an entrance arranged between the first metallization structure and the second metallization structure; a cap layer over the metallization level, the cap layer arranged relative to the first metallization structure and the second metallization structure to close the entrance to the first cavity; and a dielectric layer arranged on surfaces surrounding the first cavity, between the cap layer and the first metallization structure, and between the cap layer and the second metallization structure, wherein the dielectric layer and the cap layer encapsulate a first air gap inside the first cavity, the cap layer has a planar bottom surface arranged over the first cavity that closes the first cavity, and the first air gap extends vertically through a break in the dielectric layer at the entrance to the first cavity and terminates at the planar bottom surface of the cap layer.

Metadata:
- Claim Count in Document: 40.0
- Percentile: 86.0
- Lexical Diversity: 3.08
- Patent Class: 257.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15609408', '15459684', '10709357', '11164765', '15191937']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.9103906482041008
- 35 USC 102 Novelty (BERT): 0.4778101876611897
- Combined Prediction Score: 0.8671326021498098
- Mean Citation Score: 174.017128
- Max Citation Score: 197.79892
- Similarity Product: 152.18870563124182

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