PATENT CLAIM ANALYSIS

Application Number: 16134976
Application Type: Utility
Filing Date: 2018-09
Publication Date: 2019-05
Patent Classification: ["438", "689000"]

Abstract:
A method of self-aligned double patterning is disclosed in the present invention, which includes the step of forming multiple mandrels on a hard mask layer and spacers at two sides of each mandrel, forming a protection layer filling between the spacers, removing the mandrels to expose the hard mask layer, and performing an anisotropic etch process using the spacers and the protection layer as an etch mask to remove a portion of hard mask layer, so that a thickness of hard mask layer exposed between the spacers equals to a thickness of hard mask layer under the protection layer.

Claim (Index 7):
The method of self-aligned double patterning of  claim 1 , wherein said mandrel comprises an organic dielectric layer and a dielectric anti-reflective coating, and said first anisotropic etch process concurrently and completely removes said anti-reflective coating of said mandrel.

Metadata:
- Claim Count in Document: 9.0
- Percentile: 97.0
- Lexical Diversity: 1.98113
- Patent Class: 438.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['15900764', '15623862', '14014906', '15889043', '15972223']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.884427571329923
- 35 USC 102 Novelty (BERT): 0.5229492555125165
- Combined Prediction Score: 0.8482797397481823
- Mean Citation Score: 287.1913
- Max Citation Score: 328.9244
- Similarity Product: 240.3198909880638

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

Dataset: test