PATENT CLAIM ANALYSIS

Application Number: 15966885
Application Type: Utility
Filing Date: 2018-04
Publication Date: 2019-05
Patent Classification: ["257", "432000"]

Abstract:
The present disclosure is directed to a method for forming a light blocking material layer on a back side illuminated image sensor device. The light blocking material layer can block or absorb light rays incoming to the back side illuminated image sensor device at grazing incident angles. The light blocking material layer can be formed using a self-aligned process that does not require the use of a photolithography mask or photolithography operations. For example, the light blocking material layer can be formed over an image sensor device and subsequently etched so that the light blocking material layer remains in areas where light rays incoming at grazing incident angles enter the back side illuminated image sensor device.

Claim (Index 21):
A semiconductor image sensor, comprising:\n a multilayer interconnect structure; a grid structure comprising one or more cells disposed over the multilayer interconnect structure; a semiconductor layer interposed between the multilayer interconnect structure and the grid structure, wherein the semiconductor layer is configured to sense radiation received by the grid structure; a plurality of micro-lens structures formed over each of the one or more cells of the grid structure; and a light blocking layer disposed in an area between neighboring micro-lens structures of the plurality of micro-lens structures, wherein the light blocking layer is recessed with respect to a top surface of each micro-lens structure.

Metadata:
- Claim Count in Document: 11.0
- Percentile: 91.0
- Lexical Diversity: 1.98361
- Patent Class: 257.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15964288', '15295703', '15647968', '13692104', '15964353']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.9138682728796144
- 35 USC 102 Novelty (BERT): 0.4684875712090992
- Combined Prediction Score: 0.8693302027125628
- Mean Citation Score: 195.407282
- Max Citation Score: 214.10394
- Similarity Product: 189.9748757212436

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