PATENT CLAIM ANALYSIS

Application Number: 16037985
Application Type: Utility
Filing Date: 2018-07
Publication Date: 2020-01
Patent Classification: ["438", "009000"]

Abstract:
Generally, embodiments described herein relate to methods for manufacturing an interconnect structure for semiconductor devices, such as in a dual subtractive etch process. An embodiment is a method for semiconductor processing. A titanium nitride layer is formed over a substrate. A hardmask layer is formed over the titanium nitride layer. The hardmask layer is patterned into a pattern. The pattern is transferred to the titanium nitride layer, where the transferring comprises etching the titanium nitride layer. After transferring the pattern to the titanium nitride layer, the hardmask layer is removed, where the removal comprises performing an oxygen-containing ash process.

Claim (Index 7):
The method of  claim 1  further comprising:\n forming a first ruthenium layer over the substrate; \n forming a second titanium nitride layer over the first ruthenium layer; \n forming a second ruthenium layer over the second titanium nitride layer, the first titanium nitride layer being formed over the second ruthenium layer, the first pattern being a line pattern; \n after removing the hardmask layer, transferring the line pattern to the second ruthenium layer; \n simultaneously patterning the first titanium nitride layer into a via pattern and transferring the line pattern to the second titanium nitride layer; \n simultaneously transferring the via pattern to the second ruthenium layer to form a via and transferring the line pattern to the first ruthenium layer to form a line; and \n forming a dielectric layer on the line and the via.

Metadata:
- Claim Count in Document: 22.0
- Percentile: 95.0
- Lexical Diversity: 2.09434
- Patent Class: 438.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['14543683', '11117854', '14603018', '15818947', '14533999']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8931660072608519
- 35 USC 102 Novelty (BERT): 0.4914546751763168
- Combined Prediction Score: 0.8529948740523985
- Mean Citation Score: 213.54447
- Max Citation Score: 220.2189
- Similarity Product: 150.59888469740153

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