PATENT CLAIM ANALYSIS

Application Number: 15990037
Application Type: Utility
Filing Date: 2018-05
Publication Date: 2018-09
Patent Classification: ["257", "314000"]

Abstract:
An annular dielectric spacer can be formed at a level of a joint-level dielectric material layer between vertically neighboring pairs of alternating stacks of insulating layers and spacer material layers. After formation of a memory opening through multiple alternating stacks and formation of a memory film therein, an anisotropic etch can be performed to remove a horizontal bottom portion of the memory film. The annular dielectric spacer can protect underlying portions of the memory film during the anisotropic etch. In addition, a silicon nitride barrier may be employed to suppress hydrogen diffusion at an edge region of peripheral devices.

Claim (Index 8):
The method of  claim 6 , further comprising:\n forming a dielectric liner layer on a sidewall of the first-tier memory opening, wherein the first sacrificial fill material portion is formed on the dielectric liner layer; and removing a predominant portion of the dielectric liner layer after removal of the first and second sacrificial fill material portions, while the annular dielectric spacer covers an annular portion of the dielectric liner layer, wherein a remaining portion of the dielectric liner layer constitutes an annular dielectric liner that contacts an outer sidewall of the annular dielectric spacer.

Metadata:
- Claim Count in Document: 5.0
- Percentile: 93.0
- Lexical Diversity: 1.69355
- Patent Class: 257.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15434544', '15445579', '15914560', '15347101', '15186768']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.9401681499041104
- 35 USC 102 Novelty (BERT): 0.5538238259087711
- Combined Prediction Score: 0.9015337175045764
- Mean Citation Score: 418.19315000000006
- Max Citation Score: 479.896
- Similarity Product: 301.064029692173

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