Photoelectric avalanche diode for sensing front end of intelligent high-sensitivity optocoupler isolation chip
An avalanche diode and optocoupler isolation technology, applied in circuits, electrical components, semiconductor devices, etc., can solve the problems of the speed effect of avalanche photodiodes, and achieve good photoelectric detection performance indicators, large bandwidth, and high sensitivity.
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[0050] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on The embodiments of the present invention and all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0051] Such as Figure 5 As shown, a photoelectric avalanche diode used for the front-end sensor of an intelligent high-sensitivity optocoupler isolation chip is designed using a standard CMOS process and does not require any special custom processes or special substrates and materials. It is mainly used for infrared and visible light (300nm to 950nm) wavelength photodetection system.
[0052] The photoelectric avalanche diode used for the sens...
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