PATENT CLAIM ANALYSIS

Application Number: 15888906
Application Type: Utility
Filing Date: 2018-02
Publication Date: 2018-06
Patent Classification: ["257", "774000"]

Abstract:
A structure and a formation method of a semiconductor device structure are provided. The semiconductor device structure includes a semiconductor substrate and a conductive feature over the semiconductor substrate. The semiconductor device structure also includes a dielectric layer over the conductive feature and the semiconductor substrate and a via hole in the dielectric layer. The via hole has an oval cross section. The semiconductor device structure further includes a trench in the dielectric layer, and the via hole extends from a bottom portion of the trench. The trench has a trench width wider than a hole width of the via hole. In addition, the semiconductor device structure includes one or more conductive materials filling the via hole and the trench and electrically connected to the conductive feature.

Claim (Index 28):
A method of fabricating a semiconductor device structure, comprising:\n providing a semiconductor substrate; forming a conductive feature over the semiconductor substrate, wherein the conductive feature has a line width and a line length, the line width defined in a first direction and the line length extending in a second direction perpendicular to the first direction; depositing a dielectric layer over the conductive feature and the semiconductor substrate; etching a via hole in the dielectric layer, wherein the etching the via hole provides slanted sidewalls terminating at the conductive feature; after etching the via hole, etching a trench in the dielectric layer over the via hole, wherein the via hole extends from a bottom portion of the trench, and the trench has a trench width wider than a hole width of the via hole and substantially equal to the line width, wherein the via hole has an oval shaped opening in the bottom portion of the trench; and filling the via hole and the trench with at least one conductive material to electrically connect to the conductive feature, wherein the conductive material filling the trench has the trench width defined in the second direction and a trench length extending in the first direction.

Metadata:
- Claim Count in Document: 8.0
- Percentile: 88.0
- Lexical Diversity: 2.72
- Patent Class: 257.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15633992', '15808184', '15593214', '15668216', '14658525']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.9135949725021898
- 35 USC 102 Novelty (BERT): 0.4688751215599983
- Combined Prediction Score: 0.8691229874079707
- Mean Citation Score: 195.064376
- Max Citation Score: 199.01926
- Similarity Product: 174.09376203731296

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