PATENT CLAIM ANALYSIS

Application Number: 16104188
Application Type: Utility
Filing Date: 2018-08
Publication Date: 2019-03
Patent Classification: ["257", "186000"]

Abstract:
The invention aims for an avalanche photodiode comprising an absorption zone ( 2 ), a multiplication zone ( 3 ), a first electrode and a second electrode. The photodiode further comprises a waveguide ( 10 ) forming a curved closed circuit capable of guiding a luminous flux over several turns of said circuit. The absorption zone extends over a portion at least of said waveguide, and the multiplication zone, the first and second electrodes extend along one part at least of the curved closed circuit. The waveguide is preferably an edge waveguide forming a ring and comprising an absorption zone made of germanium of width less than 200 nm. The photodiode according to the invention has an improved compacity and an improved bandwidth while limiting the multiplication noise.

Claim (Index 20):
A method for producing the avalanche photodiode according to  claim 1 , the method comprising\n providing a silicon on an insulator type substrate comprising an upper layer made of silicon, performing lithography so as to define limits of the absorption zone in a plane, etching an axis of only a part of a thickness of the upper layer, so as to form a cavity delimited by the limits of the absorption zone defined by the performing lithography, depositing germanium in the cavity so as to form the absorption zone, performing lithography so as to define limits of the waveguide according to a curved closed circuit comprising the absorption zone, etching along an axis of a part of a thickness of the silicon surrounding the limits of the waveguide, so as to form at least one part of the waveguide, forming electrodes at a level of contact zones situated on either side of the waveguide.

Metadata:
- Claim Count in Document: 1.0
- Percentile: 96.0
- Lexical Diversity: 1.98551
- Patent Class: 257.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15728728', '16334471', '14870195', '15643930', '15179101']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.9110513222268248
- 35 USC 102 Novelty (BERT): 0.4942818740961566
- Combined Prediction Score: 0.8693743774137581
- Mean Citation Score: 198.861316
- Max Citation Score: 247.7916
- Similarity Product: 189.85194374899865

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