PATENT CLAIM ANALYSIS

Application Number: 15884505
Application Type: Utility
Filing Date: 2018-01
Publication Date: 2019-05
Patent Classification: ["257", "003000"]

Abstract:
A method includes providing a substrate having a conductive column, a dielectric layer over the conductive column, and a plurality of sacrificial blocks over the dielectric layer, the plurality of sacrificial blocks surrounding the conductive column from a top view; depositing a sacrificial layer covering the plurality of sacrificial blocks, the sacrificial layer having a dip directly above the conductive column; depositing a hard mask layer over the sacrificial layer; removing a portion of the hard mask layer from a bottom of the dip; etching the bottom of the dip using the hard mask layer as an etching mask, thereby exposing a top surface of the conductive column; and forming a conductive material inside the dip, the conductive material being in physical contact with the top surface of the conductive column.

Claim (Index 13):
A method of forming a semiconductor device, comprising:\n providing a semiconductor substrate having a bottom electrode; forming a chemical-mechanical planarization (CMP) stop layer above the semiconductor substrate; forming a first sacrificial layer above the CMP stop layer; patterning the first sacrificial layer to form multiple sacrificial blocks around the bottom electrode from a top view; depositing a second sacrificial layer over the multiple sacrificial blocks, wherein the second sacrificial layer has a dip directly above the bottom electrode; removing a portion of the second sacrificial layer from a bottom of the dip, thereby exposing the CMP stop layer at the bottom of the dip; etching the CMP stop layer through the bottom of the dip, thereby forming a via hole in the CMP stop layer; and filling the via hole with a conductive material, wherein the conductive material is in physical contact with the bottom electrode.

Metadata:
- Claim Count in Document: 17.0
- Percentile: 86.0
- Lexical Diversity: 2.86
- Patent Class: 257.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15348426', '10706968', '11738511', '11943042', '12534599']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.9082140182083992
- 35 USC 102 Novelty (BERT): 0.4772696924471062
- Combined Prediction Score: 0.86511958563227
- Mean Citation Score: 150.80212800000004
- Max Citation Score: 164.43016
- Similarity Product: 120.94978720599173

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