PATENT CLAIM ANALYSIS

Application Number: 16379165
Application Type: Utility
Filing Date: 2019-04
Publication Date: 2019-08
Patent Classification: ["257", "532000"]

Abstract:
An integrated trench capacitor and method for making the trench capacitor is disclosed. The method includes forming a trench in a silicon layer, forming a first dielectric on the exposed surface of the trench, performing an anisotropic etch of the first dielectric to expose silicon at the bottom of the trench, implanting a dopant into exposed silicon at the bottom of the trench, forming a first polysilicon layer over the first dielectric, forming a second dielectric over the first polysilicon layer, and forming a second polysilicon layer over the second dielectric to fill the trench.

Claim (Index 1):
An integrated circuit comprising:\n a silicon layer of a substrate; and a trench capacitor formed in the silicon layer, the trench capacitor comprising:\n a first portion of a first dielectric that lines a first trench in the silicon layer, \n a first portion of a first polysilicon layer overlying the first portion of the first dielectric, wherein the first portion of the first polysilicon layer contacts a first doped region of the silicon layer at the bottom of the first trench, and \n a second polysilicon layer that fills a central portion of the first trench, the second polysilicon layer being separated from the first polysilicon layer by a second dielectric; \n a substrate contact in a second trench in the silicon layer, the substrate contact comprising:\n a second portion of the first dielectric that lines the second trench, \n a second portion of the first polysilicon layer that fills a central portion of the second trench, the second portion of the first polysilicon layer shorted to the silicon layer at the bottom of the second trench by a second doped region of the silicon layer.

Metadata:
- Claim Count in Document: 5.0
- Percentile: 100.0
- Lexical Diversity: 2.5122
- Patent Class: 257.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15245511', '15264147', '16021123', '10136490', '10190297']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.9013124693115628
- 35 USC 102 Novelty (BERT): 0.4886260267320095
- Combined Prediction Score: 0.8600438250536074
- Mean Citation Score: 209.660298
- Max Citation Score: 249.29155
- Similarity Product: 207.29678416063192

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