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 6):
The method of  claim 1 , further comprising:\n forming a first sacrificial fill material portion having a top surface located at a level of the joint-level dielectric material layer inside the first-tier memory opening, wherein the annular dielectric spacer is formed on a top surface of the first sacrificial fill material portion; and forming a second sacrificial fill material portion inside the annular dielectric spacer after formation the annular dielectric spacer, wherein the first and second sacrificial fill material portions are removed during the step of forming the memory opening.

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): 0.9406578532748556
- 35 USC 102 Novelty (BERT): 0.5489299540622634
- Combined Prediction Score: 0.9014850633535963
- Mean Citation Score: 418.19315000000006
- Max Citation Score: 479.896
- Similarity Product: 272.77018119096755

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