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 18):
The method of  claim 16 , wherein the sacrificial layer has a portion left in the trench after the lower portion of the dielectric layer is etched.

Metadata:
- Claim Count in Document: 8.0
- Percentile: 98.0
- Lexical Diversity: 3.35714
- Patent Class: 438.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: False
- Related Applications: ['15226199', '15693949', '15223572', '15596671', '14830087']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8896029507213936
- 35 USC 102 Novelty (BERT): 0.5335104682837798
- Combined Prediction Score: 0.8539937024776323
- Mean Citation Score: 328.158528
- Max Citation Score: 353.09476
- Similarity Product: 266.681523110292

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