PATENT CLAIM ANALYSIS

Application Number: 15904853
Application Type: Utility
Filing Date: 2018-02
Publication Date: 2019-08
Patent Classification: ["257", "734000"]

Abstract:
In an exemplary method, a first layer is formed on a substrate. First overlay marks are formed in a first zone of the first layer. A non-transparent layer is formed on top of the first layer. At least a portion of the non-transparent layer is removed from an area above the first zone of the first layer. This provides optical access to the first overlay marks. A second layer is formed on top of the non-transparent layer. Second overlay marks are formed in a second zone of the second layer. Position information is obtained from each of the first overlay marks and the second overlay marks.

Claim (Index 8):
A method of forming a semiconductor device, comprising:\n providing a substrate; depositing a first layer of material on the substrate, the first layer of material having a top surface and a bottom surface; forming first overlay marks in a zone of the first layer of material; forming a layer of non-transparent material on top of the first layer of material, the layer of non-transparent material having a top surface and a bottom surface, the bottom surface of the of non-transparent material contacting the top surface of the first layer of material, wherein the layer of non-transparent material covers the zone of the first layer of material; forming a window in the layer of non-transparent material by selectively removing material from an area of the layer of non-transparent material, the area being vertically aligned with the zone of the first layer of material, wherein the window provides optical access to the first overlay marks; forming a second layer of material on top of the layer of non-transparent material and the window, the second layer of material having a top surface and a bottom surface, the bottom surface of the second layer of material contacting the top surface of the layer of non-transparent material; forming second overlay marks in the second layer of material; and using the first overlay marks and the second overlay marks to position structural features on the substrate by balancing optical contrast intensity between the first overlay marks and the second overlay marks.

Metadata:
- Claim Count in Document: 32.0
- Percentile: 88.0
- Lexical Diversity: 2.67442
- Patent Class: 257.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['11563852', '10725810', '11563837', '13749740', '10864562']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.9079997143516906
- 35 USC 102 Novelty (BERT): 0.5018060252252089
- Combined Prediction Score: 0.8673803454390424
- Mean Citation Score: 176.17757999999995
- Max Citation Score: 185.8901
- Similarity Product: 107.22609439147114

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