PATENT CLAIM ANALYSIS

Application Number: 15990254
Application Type: Utility
Filing Date: 2018-05
Publication Date: 2019-04
Patent Classification: ["438", "675000"]

Abstract:
A method for fabricating a semiconductor device includes: forming a plurality of bit line structures over a semiconductor substrate; forming a line-type opening between the bit line structures; forming a sacrificial spacer on both sidewalls of the line-type opening; forming a line-type plug filling the line-type opening over the sacrificial spacer; forming a plurality of plug isolation openings that expose the sacrificial spacer by etching a portion of the line-type plug in a direction crossing the bit line structures; forming a plurality of air gaps by removing the exposed sacrificial spacer; removing a remaining line-type plug below the plug isolation openings to form a plurality of island-type plugs; and forming a plug isolation layer inside the plug isolation openings to isolate neighboring island-type plugs from each other.

Claim (Index 12):
The method of  claim 11 , wherein in the forming of the plurality of the air gaps by removing the sacrificial spacer exposed by the plug isolation openings,\n each of the air gaps is formed to have a linear shape that is extended in parallel with both sidewalls of each of the bit line structures.

Metadata:
- Claim Count in Document: 20.0
- Percentile: 93.0
- Lexical Diversity: 2.34483
- Patent Class: 438.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['14516128', '14506393', '14137339', '14924476', '15142885']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8905704372587501
- 35 USC 102 Novelty (BERT): 0.5219432397789612
- Combined Prediction Score: 0.8537077175107712
- Mean Citation Score: 311.6443240000001
- Max Citation Score: 331.34152
- Similarity Product: 255.1385334373569

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