PATENT CLAIM ANALYSIS

Application Number: 16184636
Application Type: Utility
Filing Date: 2018-11
Publication Date: 2019-06
Patent Classification: ["257", "301000"]

Abstract:
The present disclosure provides a method for preparing a semiconductor memory structure. The method includes the following steps: providing a substrate comprising a plurality of active regions extending in a first direction; forming a plurality of first trenches in the substrate, the first trenches comprising a first depth and extending in a second direction different from the first direction; forming a plurality of buried digit lines in the first trenches; forming a plurality of second trenches in the substrate, the second trenches comprising a second depth and extending in a third direction different from the first direction and the second direction; deepening portions of the second trenches to form a plurality of third trenches in the substrate, the third trenches comprising a third depth; and forming a plurality of buried word lines in the third trenches.

Claim (Index 6):
The method of  claim 1 , wherein the forming the buried word lines further comprises:\n forming a plurality of first insulating layers individually in the third trenches, wherein top surfaces of the first insulating layers are lower than openings of the third trenches and higher than top surfaces of the buried digit is lines; forming the buried word lines on the first insulating layers in the third trenches, wherein top surfaces of the buried word lines are lower than the openings of the third trenches; and forming a plurality of second insulating layers on the buried word lines and filling the third trenches.

Metadata:
- Claim Count in Document: 3.0
- Percentile: 98.0
- Lexical Diversity: 3.19565
- Patent Class: 257.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: False
- Related Applications: ['13240135', '13182450', '13185961', '15253894', '13354957']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.9254971414372092
- 35 USC 102 Novelty (BERT): 0.5022959203200269
- Combined Prediction Score: 0.8831770193254911
- Mean Citation Score: 228.249658
- Max Citation Score: 242.40894
- Similarity Product: 166.30403146124124

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