PATENT CLAIM ANALYSIS

Application Number: 15873946
Application Type: Utility
Filing Date: 2018-01
Publication Date: 2019-07
Patent Classification: ["257", "642000"]

Abstract:
In an exemplary method, a first dielectric layer is formed on a substrate. A second dielectric layer is formed on the first dielectric layer. The second dielectric layer is a carbon rich film and different from the first dielectric layer. A trench is formed through the first and second dielectric layers. A conductive line is formed in the trench. A third dielectric layer is formed on the second dielectric layer and conductive line. The material of the third dielectric layer is different from the second dielectric layer. A via opening is formed through the third dielectric layer and stops at the second dielectric layer with a portion of the conductive line exposed to the via opening. At the bottom of the via opening, a recess is formed in the second dielectric layer adjacent to the conductive line. The via opening and recess are filled with a conductive material contacting the conductive line.

Claim (Index 8):
A method, comprising:\n providing a substrate having a top surface and a bottom surface; depositing a first dielectric layer on the top surface of the substrate, the first dielectric layer having a top surface and a bottom surface, the bottom surface of the first dielectric layer contacting the top surface of the substrate; depositing a second dielectric layer on the top surface of the first dielectric layer, the second dielectric layer having a top surface and a bottom surface, the bottom surface of the second dielectric layer contacting the top surface of the first dielectric layer, the second dielectric layer being an organic film and comprising a material different from the material of the first dielectric layer; performing a first etching process and forming a trench through the first dielectric layer and the second dielectric layer; filling the trench with a first conductive material, wherein the first conductive material forms a conductive line connected to operational devices of an integrated circuit; depositing a third dielectric layer on the top surface of the second dielectric layer, the third dielectric layer covering the first conductive material in the trench, the third dielectric layer having a top surface and a bottom surface, the bottom surface of the third dielectric layer contacting the top surface of the second dielectric layer, the material of the third dielectric layer being different from the material of the second dielectric layer; performing a second etching process and forming a via opening through the third dielectric layer, the second etching process stopping on the top surface of the second dielectric layer, wherein the via opening has a top and a bottom, the top of the via opening being coplanar with the top surface of the third dielectric layer and the bottom of the via opening being coplanar with the top surface of the second dielectric layer, a portion of the first conductive material in the trench being exposed to the via opening by the second etching process; at the bottom of the via opening, forming a recess in the second dielectric layer by using a wet etching process to remove a portion of the second dielectric layer adjacent to the first conductive material; and filling the via opening and the recess with a second conductive material.

Metadata:
- Claim Count in Document: 50.0
- Percentile: 86.0
- Lexical Diversity: 3.41667
- Patent Class: 257.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['14046414', '14958047', '12188228', '11309201', '14983643']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.9143812865785284
- 35 USC 102 Novelty (BERT): 0.4873971278359059
- Combined Prediction Score: 0.8716828707042661
- Mean Citation Score: 197.947792
- Max Citation Score: 199.02623
- Similarity Product: 138.63606463904858

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