PATENT CLAIM ANALYSIS

Application Number: 15864714
Application Type: Utility
Filing Date: 2018-01
Publication Date: 2019-07
Patent Classification: ["257", "432000"]

Abstract:
The back reflection in photodiodes is caused by an abrupt index contrast between the input waveguide and the composite waveguide/light absorbing material. In order to improve the back reflection, it is proposed to introduce an angle between the waveguide and the leading edge of the light absorbing material. The angle will result in gradually changing the effective index between the index of the waveguide and the index of the composite section, and consequently lower the amount of light reflecting back.

Claim (Index 11):
A method of manufacturing a photodetector device comprising:\n a) providing a wafer including a substrate and a device layer; b) patterning and etching the device layer forming a waveguide including an index of refraction, and an input section, including an optical axis along which an optical signal is transmitted; and c) depositing a light absorbing material adjacent to a section of the waveguide forming a composite section therewith, with an effective combined index of refraction; wherein a leading edge of the light absorber material is at a first acute angle to the optical axis of the input section of the waveguide ensuring a more gradual change in the effective index of refraction between the index of refraction of the waveguide and the effective combined index of refraction of the composite section.

Metadata:
- Claim Count in Document: 16.0
- Percentile: 86.0
- Lexical Diversity: 1.88889
- Patent Class: 257.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['11568855', '12026745', '13349957', '14967196', '11005286']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.907158495649976
- 35 USC 102 Novelty (BERT): 0.4602537214795411
- Combined Prediction Score: 0.8624680182329324
- Mean Citation Score: 152.19773999999995
- Max Citation Score: 158.35408
- Similarity Product: 126.77247046195984

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