PATENT CLAIM ANALYSIS

Application Number: 15756835
Application Type: Utility
Filing Date: 2018-03
Publication Date: 2018-08
Patent Classification: ["257", "013000"]

Abstract:
Provided is a deep ultraviolet LED with a design wavelength λ, including a reflecting electrode layer, an ultra-thin metal layer, and a p-type contact layer that are arranged in this order from a side opposite to a substrate; and a hemispherical lens bonded to a rear surface of the substrate on a side of the p-type contact layer, the hemispherical lens being transparent to light with the wavelength λ. The refractive index of the hemispherical lens is greater than or equal to the average value of the refractive index of the substrate and the refractive index of air and is less than or equal to the refractive index of the substrate. The hemispherical lens has a radius that is greater than or equal to the radius of an inscribed circle of the substrate and is about equal to the radius of a circumscribed circle of the substrate.

Claim (Index 49):
A deep ultraviolet LED with a design wavelength \u03bb (200 to 350 nm), comprising a reflecting electrode layer, a metal layer, a p-GaN contact layer, a p-AlGaN layer that is transparent to light with a wavelength \u25a1, a multi-quantum barrier layer, a barrier layer, and a quantum well layer that are arranged in this order from a side opposite to a sapphire substrate,\n wherein: \n a thickness of the p-AlGaN layer is less than or equal to 30 nm, \n a reflecting photonic crystal periodic structure including a plurality of voids is provided in a range of a thickness direction including at least an interface between the p-GaN contact layer and the p-AlGaN layer such that the reflecting photonic crystal periodic structure does not extend beyond the p-AlGaN layer in a direction of the substrate, \n a maximum value of light extraction efficiency is obtained with a distance of from an end face of each void in the direction of the substrate to the quantum well layer being in a range of 50 to 70 nm and with a depth h of the void being in a range of 40 to 60 nm, \n the reflecting photonic crystal periodic structure has a photonic band gap that opens for TE polarized components, \n a period a of the photonic crystal periodic structure satisfies a Bragg condition with respect to light with the design wavelength \u03bb, \n an order m of a formula of the Bragg condition is in a range of 1\u2264m\u22645, \n provided that a radius of each void is R, R/a with which a maximum photonic band gap is obtained is satisfied, \n a rear surface of the substrate on a side of the p-AlGaN layer has bonded thereto a sapphire hemispherical lens that is transparent to light with the wavelength \u03bb, and \n a radius of the hemispherical lens is greater than or equal to a radius of a circumscribed circle of the substrate.

Metadata:
- Claim Count in Document: 2.0
- Percentile: 90.0
- Lexical Diversity: 2.5
- Patent Class: 257.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15540510', '15526860', '14426328', '14232517', '14777176']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.9386408606718354
- 35 USC 102 Novelty (BERT): 0.5833606180584366
- Combined Prediction Score: 0.9031128364104954
- Mean Citation Score: 391.401398
- Max Citation Score: 513.6875
- Similarity Product: 424.858765013516

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