PATENT CLAIM ANALYSIS

Application Number: 15861799
Application Type: Utility
Filing Date: 2018-01
Publication Date: 2019-07
Patent Classification: ["438", "584000"]

Abstract:
Methods of patterning metallization lines having variable widths in a metallization layer. A first mandrel layer is formed over a mask layer, with the mask layer overlying a second mandrel layer. The first mandrel layer is etched to form mandrel lines that have variable widths. The first non-mandrel trenches are etched in the mask layer, where the non-mandrel trenches have variable widths. The first mandrel lines are used to etch mandrel trenches in the mask layer, so that the mandrel lines and first non-mandrel lines define a mandrel pattern. The second mandrel layer is etched according to the mandrel pattern to form second mandrel lines, with the second mandrel lines having the variable widths of the plurality of first mandrel lines and the variable widths of the plurality of non-mandrel trenches.

Claim (Index 3):
The method of  claim 2 , further comprising:\n prior to etching the first mask layer, forming a lithography stack over the plurality of first mandrel lines and the plurality of first mandrel spacers, the lithography stack filling the spaces between the plurality of first mandrel spacers; forming a patterned resist layer over the lithography stack, the patterned resist layer having a plurality of openings exposing respective portions of the lithography stack to be etched; and etching the exposed portions of the lithography stack to expose respective portions of the first mask layer, the remaining lithography stack and the first mandrel spacers protecting other portions of the first mask layer from the etching, and the etching defining a first non-mandrel pattern of non-mandrel lines having the variable widths; and etching the exposed portions of the first mask layer.

Metadata:
- Claim Count in Document: 17.0
- Percentile: 86.0
- Lexical Diversity: 3.35714
- Patent Class: 438.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15689668', '15362035', '15860193', '15077564', '15077480']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8631073012728464
- 35 USC 102 Novelty (BERT): 0.5069299536443928
- Combined Prediction Score: 0.827489566510001
- Mean Citation Score: 247.569694
- Max Citation Score: 293.25885
- Similarity Product: 232.3184633524239

Labels:
- Claim Label 101: 1
- Claim Label 102: 1
- Claim Label 103: 0
- Claim Label 112: 1
- Combined Label: 1
- Label 101 Adjusted: 1

Dataset: test