PATENT CLAIM ANALYSIS

Application Number: 15770955
Application Type: Utility
Filing Date: 2018-04
Publication Date: 2018-11
Patent Classification: ["438", "622000"]

Abstract:
Grating based plugs and cuts for feature end formation for back end of line (BEOL) interconnects are described. In an example, a method of fabricating an interconnect structure for a semiconductor die includes forming a hardmask layer above an interlayer dielectric (ILD) material layer. A first patterned hardmask layer is formed above the hardmask layer. A second patterned hardmask layer is formed above the first patterned hardmask layer. A lithographic patterning mask is formed above the second patterned hardmask layer. Portions of the second patterned hardmask layer not protected by the regions of the lithographic patterning mask are removed to form a third patterned hardmask layer and then the lithographic patterning mask is removed. A combined pattern of the third patterned hardmask layer and the first patterned hardmask layer is transferred to the hardmask layer and to the ILD material layer.

Claim (Index 18):
The method of  claim 12 , wherein the grating pattern of the first patterned hardmask layer and the grating pattern of the second patterned hardmask layer together define all allowed line end locations for a metal line metallization layer.

Metadata:
- Claim Count in Document: 50.0
- Percentile: 91.0
- Lexical Diversity: 2.46774
- Patent Class: 438.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: False
- Related Applications: ['14137588', '15743616', '15772711', '14133385', '14911991']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8835597320668345
- 35 USC 102 Novelty (BERT): 0.5195310984121122
- Combined Prediction Score: 0.8471568687013623
- Mean Citation Score: 278.404344
- Max Citation Score: 295.8126200000001
- Similarity Product: 184.55722804068333

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