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 17):
The method of  claim 16  wherein patterning the first portion and the second portion of the second non-mandrel pattern in the second mask layer comprises:\n selectively removing the sacrificial gapfill material to expose the first portion of the intermediary mask layer; \n removing the exposed first portion of the intermediary mask layer to expose a first portion of the second mask layer corresponding to the first portion of the second non-mandrel pattern; \n removing the second mandrel spacers to expose the second portion of the intermediary mask layer, the second portion of the intermediary mask layer overlying a second portion of the second mask layer; \n performing a first selective etch of a first part of the first portion of the intermediary mask layer; and \n performing a second selective etch of a second part of the first portion of the intermediary mask layer, \n wherein the second portion of the intermediary mask layer protects the second portion of the second mask layer from the first selective etch and the second selective etch, and the first selective etch and the second selective etch together correspond to the second portion of the second non-mandrel pattern.

Metadata:
- Claim Count in Document: 17.0
- Percentile: 86.0
- Lexical Diversity: 3.35714
- Patent Class: 438.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: False
- Related Applications: ['15689668', '15362035', '15860193', '15077564', '15077480']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8766352791934936
- 35 USC 102 Novelty (BERT): 0.5081255032564924
- Combined Prediction Score: 0.8397843015997934
- Mean Citation Score: 247.569694
- Max Citation Score: 293.25885
- Similarity Product: 237.60759488429724

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