PATENT CLAIM ANALYSIS

Application Number: 15981928
Application Type: Utility
Filing Date: 2018-05
Publication Date: 2019-03
Patent Classification: ["257", "330000"]

Abstract:
A semiconductor memory device has a plurality of gates vertically stacked on a top surface of a substrate, a vertical channel filling a vertical hole that extends vertically through the plurality of gates, and a memory layer in the vertical hole and surrounding the vertical channel. The vertical channel includes a bracket-shaped lower portion filling part of a recess in the top of the substrate and an upper portion extending vertically along the vertical hole and connected to the lower channel. At least one end of an interface between the lower and upper portions of the vertical channel is disposed at a level not than that of the top surface of the substrate.

Claim (Index 21):
A semiconductor memory device, comprising:\n a substrate having a top surface; a gate stack including gates disposed one above another on the top surface of the substrate; a vertical channel having an upper portion of semiconductor material and a lower portion of semiconductor material; and a memory layer structure in the gate stack, wherein the upper portion of the vertical channel extends vertically through the gate stack; the memory layer structure surrounds the upper portion of the vertical channel, the lower portion of the vertical channel is disposed in the substrate, the lower portion of the vertical channel having the form of a pot so as to have a bottom wall and a sidewall projecting upwardly from the bottom wall, the sidewall having a top surface in the form of a rim and an inner surface, and the upper portion of the vertical channel and the lower portion of the vertical channel have an interface along which the upper portion of the vertical channel and the lower portion of the vertical channel meet and across which a conductive path is established in the device, at least one end of the interface being located no higher than a plane that coincides with the top surface of the substrate.

Metadata:
- Claim Count in Document: 26.0
- Percentile: 93.0
- Lexical Diversity: 2.14545
- Patent Class: 257.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15514239', '15639733', '14831449', '14725476', '13800872']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.921641032884314
- 35 USC 102 Novelty (BERT): 0.4919077533887521
- Combined Prediction Score: 0.8786677049347579
- Mean Citation Score: 250.361496
- Max Citation Score: 260.1696
- Similarity Product: 215.31878069686888

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