PATENT CLAIM ANALYSIS

Application Number: 15973285
Application Type: Utility
Filing Date: 2018-05
Publication Date: 2018-09
Patent Classification: ["385", "130000"]

Abstract:
By using various anisotropic silicon etching techniques, a silicon substrate layer ( 1 ) and an expitaxial buffer layer ( 2 ) under the device structure are removed to obtain a monolithic photonic integration of silicon substrate suspended light-emitting diode (LED) with optical waveguide, and an ultra-thin device monolithically integrated with a suspended LED and an optical waveguide is obtained by further using the nitride back thinning etching technique. Therefore, internal loss of the LED is reduced and light emitting efficiency is improved. In the device according to the present disclosure, the light source and the optical waveguide are integrated on the same wafer, which solves the problem of monolithic integration of planar photons, enables the light emitted by the LED to be transmitted along the optical waveguide, addresses the problem of transmission of light in the optical waveguide, and implements the function of transmitting light within a plane.

Claim (Index 1):
An integrated photonic device, comprising:\n a silicon substrate layer, an epitaxial buffer layer arranged on the silicon substrate layer, and a P-N junction arranged on the epitaxial buffer layer; wherein the P-N junction comprises an n-GaN layer, an InGaN/GaN quantum well, and a p-GaN layer that are sequentially connected from bottom to top, wherein a p-electrode is arranged on the p-GaN layer, a step-shaped stage is etched on an upper surface of the n-GaN layer, wherein the step-shaped stage comprises an upper stage and a lower stage arranged on a side of the upper stage, the upper stage is connected to a bottom face of the InGaN/GaN quantum well, wherein an n-electrode is arranged on the lower stage, wherein the n-GaN layer, the InGaN/GaN quantum well, the p-GaN layer, the p-electrode, and the n-electrode form a light-emitting diode (LED), wherein an optical waveguide is integrated on the LED, and wherein a cavity opposite to the p-electrode, the n-electrode, and the optical waveguide and passing through the silicon substrate layer and the expitaxial buffer layer is arranged under the n-GaN layer, such that the LED and the optical waveguide are suspended.

Metadata:
- Claim Count in Document: 7.0
- Percentile: 93.0
- Lexical Diversity: 1.92857
- Patent Class: 385.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15809598', '16311818', '14141549', '14918342', '10394559']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8179306119255128
- 35 USC 102 Novelty (BERT): 0.5013019964333684
- Combined Prediction Score: 0.7862677503762984
- Mean Citation Score: 250.061032
- Max Citation Score: 264.77078
- Similarity Product: 189.8012920487285

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