PATENT CLAIM ANALYSIS

Application Number: 15882925
Application Type: Utility
Filing Date: 2018-01
Publication Date: 2018-10
Patent Classification: ["257", "440000"]

Abstract:
A multi-color HDR image sensor includes at least a first combination color pixel with a first color filter and an adjacent second combination color pixel with a second color filter which is different from the first color filter, wherein each combination color pixel includes at least two sub-pixels having at least two adjacent photodiodes. Within each combination color pixel, there is a dielectric deep trench isolation (d-DTI) structure to isolate the two adjacent photodiodes of the two adjacent sub-pixels with same color filters in order to prevent the electrical cross talk. Between two adjacent combination color pixels with different color filters, there is a hybrid deep trench isolation (h-DTI) structure to isolate two adjacent photodiodes of two adjacent sub-pixels with different color filters in order to prevent both optical and electrical cross talk. Each combination color pixel is enclosed on all sides by the hybrid deep trench isolation (h-DTI) structure.

Claim (Index 1):
A method of a pixel array fabrication, comprising:\n providing a semiconductor material having a first side and a second side opposite the first side; etching at least two first trench structures and at least one second trench structure, wherein all trenches have same geometric structures and extend from the first side towards the second side of the semiconductor material; widening the second trench structure to form a shallow portion proximate to the first side of the semiconductor material, and a deep portion disposed between the shallow portion and the second side of the semiconductor material; depositing a dielectric material within the deep portion and the shallow portion of the second trench structure, and also within the two first trench structures; depositing a metal within a region of the shallow portion of the second trench structure such that the dielectric material within the shallow portion is disposed between the metal and the semiconductor material; disposing a first combination pixel in the semiconductor material between the first side and the second side of the semiconductor material, wherein the first combination pixel includes at least two adjacent first photo sensitive elements configured to receive light of a first wavelength, and wherein one of the first trench structures is disposed between the two adjacent first photo sensitive elements; disposing a second combination pixel in the semiconductor material between the first side and the second side of the semiconductor material, wherein the second combination pixel includes at least two adjacent second photo sensitive elements configured to receive light of a second wavelength, wherein the other one of the first trench structures is disposed between the two adjacent second photo sensitive elements; and wherein the first combination pixel is adjacent to the second combination pixel, and the second trench structure is disposed between the first and the second combination pixel.

Metadata:
- Claim Count in Document: 11.0
- Percentile: 86.0
- Lexical Diversity: 2.50769
- Patent Class: 257.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15478085', '14711575', '13290733', '15795681', '12844642']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8916241765426095
- 35 USC 102 Novelty (BERT): 0.5217247049853236
- Combined Prediction Score: 0.8546342293868809
- Mean Citation Score: 198.100274
- Max Citation Score: 316.2256
- Similarity Product: 256.2427846692085

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