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 1):
A method, comprising:\n forming a first layer of a multilayer device on a substrate; forming first overlay marks in a first zone of the first layer; forming a non-transparent layer on top of the first layer; forming a window in the non-transparent layer by removing material from a preselected area of the non-transparent layer, wherein the preselected area is vertically aligned on the first zone of the first layer and the window provides optical access to the first overlay marks; forming a second layer on top of the non-transparent layer and the window; forming second overlay marks in a second zone of the second layer; and obtaining position information from each of the first overlay marks and the second overlay marks 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): 0.9113327089476754
- 35 USC 102 Novelty (BERT): 0.4623508744441351
- Combined Prediction Score: 0.8664345254973214
- Mean Citation Score: 176.17757999999995
- Max Citation Score: 185.8901
- Similarity Product: 158.06741815640925

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