PATENT CLAIM ANALYSIS

Application Number: 16188237
Application Type: Utility
Filing Date: 2018-11
Publication Date: 2019-03
Patent Classification: ["257", "506000"]

Abstract:
The present invention provides a method of forming a semiconductor device. First, a substrate is provided and an STI is forming in the substrate to define a plurality of active regions. Then a first etching process is performed to form a bit line contact opening, which is corresponding to one of the active regions. A second etching process is performed to remove a part of the active region and its adjacent STI so a top surface of active region is higher than a top surface of the STI. Next, a bit line contact is formed in the opening. The present invention further provides a semiconductor structure.

Claim (Index 9):
The method of forming a semiconductor memory device according to  claim 1 , wherein the second etching process comprises using steam HF.

Metadata:
- Claim Count in Document: 12.0
- Percentile: 98.0
- Lexical Diversity: 2.09091
- Patent Class: 257.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['15472295', '15856089', '14587472', '12292819', '11193788']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.9224608421823964
- 35 USC 102 Novelty (BERT): 0.4886764436359435
- Combined Prediction Score: 0.8790824023277511
- Mean Citation Score: 194.16505
- Max Citation Score: 211.98305
- Similarity Product: 155.94806055687368

Labels:
- Claim Label 101: 1
- Claim Label 102: 1
- Claim Label 103: 0
- Claim Label 112: 1
- Combined Label: 1
- Label 101 Adjusted: 1

Dataset: test