PATENT CLAIM ANALYSIS

Application Number: 15964031
Application Type: Utility
Filing Date: 2018-04
Publication Date: 2019-10
Patent Classification: ["438", "699000"]

Abstract:
The present invention provides a method for fabricating a hard mask, comprising: firstly, a first material layer and a second material layer are provided on the first material layer, a cell region and a peripheral region are defined thereon, and then a plurality of sacrificial patterns and a plurality of spacers are formed in the cell region on the second material layer, each two spacers are located at two sides of each of the sacrificial patterns. Afterwards, a first etching step is performed to remove the sacrificial patterns, a second etching step is performed to remove a portion of the second material layer and expose a portion of the first material layer within the cell region, and a third etching step is performed to remove portions of the first material layer, so as to forma plurality of first recesses in the first material layer.

Claim (Index 3):
The method of  claim 1 , wherein the first material layer in the peripheral region is still completely covered by the second material layer during the second etching step is performed.

Metadata:
- Claim Count in Document: 47.0
- Percentile: 91.0
- Lexical Diversity: 2.68966
- Patent Class: 438.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['12058512', '15851149', '14743594', '15643940', '15909036']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8346431002278059
- 35 USC 102 Novelty (BERT): 0.4910781410461818
- Combined Prediction Score: 0.8002866043096435
- Mean Citation Score: 155.17575600000004
- Max Citation Score: 156.32326
- Similarity Product: 104.59664588893412

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