PATENT CLAIM ANALYSIS

Application Number: 15907590
Application Type: Utility
Filing Date: 2018-02
Publication Date: 2018-09
Patent Classification: ["438", "138000"]

Abstract:
A process of forming a light-receiving device type of avalanche photodiode (APD) is disclosed. The process includes steps of: (1) growing semiconductor layers on a semiconductor substrate, the semiconductor layers providing a first area on a top thereof; (2) thermally diffusing impurities within the semiconductor layers in a second area outside of the first area so as to leave a roughed surface in a top of the second area, the impurities laterally diffusing to form an diffusion edge locating inside of the first area; and (3) removing the semiconductor layers including the roughed surface thereof in the second area to form a mesa in the first area, the mesa including the diffusion edge in a periphery thereof but excluding the roughed surface.

Claim (Index 4):
The process according to  claim 2 ,\n further including steps of: after the step of thermally diffusing the impurities but before the step of removing the semiconductor layers, removing the first insulating film; and forming a second insulating film with an edge inside of an edge of the first insulating film but outside of the diffusion edge of the impurities, wherein the step of removing the semiconductor layers is carried out by etching the semiconductor layer using the second insulating film as an etching mask.

Metadata:
- Claim Count in Document: 1.0
- Percentile: 88.0
- Lexical Diversity: 2.19048
- Patent Class: 438.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['14283503', '11259196', '12839649', '11098558', '10836878']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8641910183591054
- 35 USC 102 Novelty (BERT): 0.4710424690759766
- Combined Prediction Score: 0.8248761634307925
- Mean Citation Score: 167.53637400000005
- Max Citation Score: 189.75839
- Similarity Product: 155.26569700322509

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