PATENT CLAIM ANALYSIS

Application Number: 15878760
Application Type: Utility
Filing Date: 2018-01
Publication Date: 2018-05
Patent Classification: ["257", "752000"]

Abstract:
A method for via alignment includes forming first airgaps between interconnect structures and depositing a pinch off layer to close off openings to the first airgaps. A protection layer is formed in divots in the pinch off layer. The protection layer and the pinch off layer are planarized to form a surface where the protection layer remains in the divots. An interlevel dielectric layer (ILD) is deposited on the surface. The ILD and the pinch off layer are etched using the protection layer as an etch stop to align a via and expose the interconnect structure through the via.

Claim (Index 10):
The method as recited in  claim 9 , wherein forming the first airgaps between interconnect structures includes selectively etching a dielectric material between the interconnect structures.

Metadata:
- Claim Count in Document: 50.0
- Percentile: 86.0
- Lexical Diversity: 2.0
- Patent Class: 257.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: False
- Related Applications: ['15337130', '15130166', '15837361', '15202475', '13183315']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.9375937330515548
- 35 USC 102 Novelty (BERT): 0.6049613087414545
- Combined Prediction Score: 0.9043304906205448
- Mean Citation Score: 374.571554
- Max Citation Score: 524.3019400000002
- Similarity Product: 506.0903307945968

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