PATENT CLAIM ANALYSIS

Application Number: 16199847
Application Type: Utility
Filing Date: 2018-11
Publication Date: 2019-03
Patent Classification: ["438", "623000"]

Abstract:
A method includes forming a dielectric layer, forming a photo resist over the dielectric layer, forming a first mask layer over the photo resist, and forming a second mask layer over the first mask layer. A first-photo-first-etching is performed to form a first via pattern in the second mask layer, wherein the first-photo-first-etching stops on a top surface of the first mask layer. A second-photo-second-etching is performed to form a second via pattern in the second mask layer, wherein the second-photo-second-etching stops on the top surface of the first mask layer. The first mask layer is etched using the second mask layer as an etching mask. The photo resist and the dielectric layer are etched to simultaneously transfer the first via pattern and the second via pattern into the dielectric layer.

Claim (Index 16):
A method comprising:\n etching an upper portion of a dielectric layer to form a trench, wherein a bottom of the trench is at a level between a top surface and a bottom surface of the dielectric layer; filling a sacrificial layer into the trench; patterning the sacrificial layer; etching a lower portion of the dielectric layer using the patterned sacrificial layer as an etching mask, wherein a via opening is formed in the lower portion of the dielectric layer; removing the sacrificial layer; and filling a conductive material into the trench and the via opening to form a conductive line and a via underlying the conductive line.

Metadata:
- Claim Count in Document: 8.0
- Percentile: 98.0
- Lexical Diversity: 3.35714
- Patent Class: 438.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15226199', '15693949', '15223572', '15596671', '14830087']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8774380733696698
- 35 USC 102 Novelty (BERT): 0.531638151351788
- Combined Prediction Score: 0.8428580811678816
- Mean Citation Score: 328.158528
- Max Citation Score: 353.09476
- Similarity Product: 256.59606949569456

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