PATENT CLAIM ANALYSIS

Application Number: 16137111
Application Type: Utility
Filing Date: 2018-09
Publication Date: 2019-01
Patent Classification: ["438", "702000"]

Abstract:
Techniques disclosed herein, provide a method and fabrication structure for accurately increasing feature density for creating high-resolution features and also for cutting on pitch of sub-resolution features. Techniques include using multiple materials having different etch characteristics to selectively etch features and create cuts or blocks where specified. A multiline layer is formed of three or more different materials that provide differing etch characteristics. Etch masks, including interwoven etch masks, are used to selectively etch cuts within selected, exposed materials. Structures can then be cut and formed. Forming structures and cuts can be recorded in a memorization layer, which can also be used as an etch mask.

Claim (Index 17):
A method for patterning a substrate, the method comprising:\n forming a multi-line layer above a memorization layer on a substrate, the multi-line layer including a region having a pattern of alternating lines of materials that differ chemically from each other by having different etch resistivities relative to each other, alternating lines includes mandrels, sidewall spacers, and fill structures, the pattern of alternating lines includes alternating lines of the mandrels and lines of the fill structures with the sidewall spacers positioned between lines of the mandrels and lines of the fill structures; forming a first etch mask above the multi-line layer; etching through uncovered portions of mandrels and portions of the memorization layer directly underneath the uncovered portions of mandrels using the first etch mask; forming a second etch mask above the multi-line layer; etching through uncovered portions of the fill structures and portions of the memorization layer directly underneath the uncovered portions of the fill structures using the second etch mask; and etching through the sidewall spacers and portions of the memorization layer directly underneath the sidewall spacers with the multi-line layer uncovered.

Metadata:
- Claim Count in Document: 47.0
- Percentile: 97.0
- Lexical Diversity: 1.60274
- Patent Class: 438.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15416916', '15270841', '15271876', '15488117', '15581708']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8973396146255166
- 35 USC 102 Novelty (BERT): 0.5790545536636795
- Combined Prediction Score: 0.8655111085293329
- Mean Citation Score: 401.813154
- Max Citation Score: 482.76514
- Similarity Product: 424.6446717050767

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

Dataset: test