PATENT CLAIM ANALYSIS

Application Number: 15873909
Application Type: Utility
Filing Date: 2018-01
Publication Date: 2018-07
Patent Classification: ["257", "071000"]

Abstract:
A semiconductor device and method of forming the same, the semiconductor device includes plural bit lines, plural conductive patterns, plural conductive pads and a spacer. The bit lines are disposed on a substrate, along a first direction. The conductive patterns are disposed on the substrate, along the first direction, wherein the conductive patterns and the bit lines are alternately arranged in a second direction perpendicular to the first direction. The conductive pads are arranged in an array and disposed over the conductive patterns and the bit lines. The spacer is disposed between the bit lines and the conductive patterns, under the conductive pads, wherein the spacers includes a tri-layered structure having a first layer, a second layer and a third layer, and the second layer includes a plurality of air gaps separated arranged along the first direction.

Claim (Index 1):
A method of forming semiconductor memory device, comprising:\n forming a plurality of bit lines extended along a first direction, and a tri-layered spacer disposed at two sides of each of the bit lines; forming a plurality of conductive patterns extended along the first direction, the conductive patterns and the bit lines being alternately arranged along a second direction which is perpendicular to the first direction; forming a metal layer, covered the bit lines and the conductive patterns; removing a portion of the metal layer, to form a plurality of openings in the metal layer, the openings extended along the second direction to cross the bit lines and the conductive patterns, wherein a portion of the bit lines and the tri-layered spacers disposed at two sides thereof are exposed from the openings; removing a second layer of each of the tri-layered spacers exposed from the openings, to form an air-gap layer in each of the tri-layered spacers; and after forming the air-gap layers, removing another portion of the metal layer, to form a plurality of conductive pads.

Metadata:
- Claim Count in Document: 13.0
- Percentile: 86.0
- Lexical Diversity: 2.98039
- Patent Class: 257.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15592860', '15782556', '13293777', '14101631', '14445829']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.9212493262434932
- 35 USC 102 Novelty (BERT): 0.49592037446678
- Combined Prediction Score: 0.878716431065822
- Mean Citation Score: 250.75194399999995
- Max Citation Score: 260.69778
- Similarity Product: 204.3306172582448

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