PATENT CLAIM ANALYSIS

Application Number: 16290671
Application Type: Utility
Filing Date: 2019-03
Publication Date: 2019-09
Patent Classification: ["385", "014000"]

Abstract:
A photodiode (PD) device that monolithically integrates a PD element with a waveguide element is disclosed. The PD device includes a conducting layer with a first region and a second region next to the first region, where the PD element exists in the first region, while, the waveguide element exists in the second region and optically couples with the PD element. The waveguide element includes a core layer and a cladding layer on the conducting layer, which forms an optical confinement structure. The PD element includes an absorption layer on the conducting layer and a p-type cladding layer on the absorption layer, which form another optical confinement structure. The absorption layer has a length at least 12 μm measured from the interface against the core layer.

Claim (Index 15):
A photodiode device that receives an optical signal and a local signal each having wavelengths substantially equal to each other, the optical signal containing two signal components each having phases different by 90\u00b0, the photodiode device comprising:\n a substrate providing a conducting layer thereon, the conducting layer being doped with n-type impurities by density greater than 1\u00d710 17  cm \u22123 . an optical hybrid that receives the optical signal and the local signal, extracts the two signal components by performing interference between the optical signal and the local signal, and outputs the two signal components; two photodiode elements each having absorption layers provided on the conducting layer and p-type cladding layers on the absorption layers; and two waveguide elements that provide the two signal components extracted by the optical hybrid to the two photodiode elements, respectively, the two waveguide elements each having core layers on the conducting layer and cladding layers on the core layers, wherein the absorption layers each have a length of at least 12 \u03bcm measured from respective interfaces against the waveguide elements along optical axes thereof.

Metadata:
- Claim Count in Document: 13.0
- Percentile: 99.0
- Lexical Diversity: 2.42105
- Patent Class: 385.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15909263', '13534057', '15193814', '15909235', '15610396']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.770478936252274
- 35 USC 102 Novelty (BERT): 0.5013356423607039
- Combined Prediction Score: 0.7435646068631171
- Mean Citation Score: 204.910698
- Max Citation Score: 259.56357
- Similarity Product: 205.1499250504696

Labels:
- Claim Label 101: 1
- Claim Label 102: 1
- Claim Label 103: 1
- Claim Label 112: 1
- Combined Label: 1
- Label 101 Adjusted: 1

Dataset: test