PATENT CLAIM ANALYSIS

Application Number: 16061651
Application Type: Utility
Filing Date: 2018-06
Publication Date: 2018-12
Patent Classification: ["257", "184000"]

Abstract:
An on-chip mode converter-based silicon-germanium photoelectric detection apparatus comprises an insulating substrate, an optical coupler, an on-chip mode converter and a multi-mode silicon-germanium photoelectric detector. The optical coupler, the converter and the photoelectric detector are sequentially connected and all fixed on silicon wafers of the insulating substrate. An incident fundamental mode optical signal is transmitted to the optical coupler through a single-mode fiber, enters the converter via the optical coupled. The converter converts the fundamental mode optical signal into a multi-mode optical field and enters the photoelectric detector, which converts the multi-mode optical field into an electrical signal. Heavily germanium-doped region are located in areas with relatively weak distributed light intensity of the multi-mode optical field. The absorption loss of the heavily germanium-doped region and third through-holes on the optical field is dramatically reduced and the responsiveness of the apparatus can be improved effectively.

Claim (Index 2):
The photoelectric detection apparatus according to  claim 1 , wherein the multi-mode silicon-germanium photoelectric detector comprises a silicon substrate layer, the silicon substrate layer is covered with a silicon dioxide layer over which a first heavily silicon-doped region, a lightly silicon-doped region and a second heavily silicon-doped region are distributed, the first heavily silicon-doped region and the second heavily silicon-doped region are located on both sides of the lightly silicon-doped region, respectively, a multi-mode germanium absorption waveguide is grown on the lightly silicon-doped region, at least one heavily germanium-doped region is on the interior top of the multi-mode germanium absorption waveguide, the periphery of the multi-mode germanium absorption waveguide is covered with the silicon dioxide layer, a first silicon electrode, a germanium electrode and a second silicon electrode are disposed on the silicon dioxide layer, the first silicon electrode is located immediately above the first heavily silicon-doped region, the second silicon electrode is located immediately above the second heavily silicon-doped region, the germanium electrode is located immediately above the heavily germanium-doped region, a first through-hole is formed on the silicon dioxide layer between the first silicon electrode and the first heavily silicon-doped region, at least one third through-hole is formed on the silicon dioxide layer between the germanium electrode and at least one heavily germanium-doped region, the third through-holes are in one-to-one correspondence with the heavily germanium-doped region, a second through-hole is formed on the silicon dioxide layer between the second silicon electrode and the second heavily silicon-doped region, the first through-hole, the third through-holes and the second through-hole are each internally filled with metal that functions as a conductor, the first silicon electrode accomplishes electrical connection with the first heavily silicon-doped region through the metal conductor within the first through-hole, the germanium electrode accomplishes electrical connection with the heavily germanium-doped region through the metal conductors within the third through-holes, and the second silicon electrode accomplishes electrical connection with the second heavily silicon-doped region through the metal conductor within the second through-hole.

Metadata:
- Claim Count in Document: 9.0
- Percentile: 94.0
- Lexical Diversity: 2.12329
- Patent Class: 257.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['16001653', '15873133', '11012728', '15395905', '12517802']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.9202784809164531
- 35 USC 102 Novelty (BERT): 0.4751216631439686
- Combined Prediction Score: 0.8757627991392047
- Mean Citation Score: 183.643198
- Max Citation Score: 205.32942
- Similarity Product: 169.76937283779145

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