H - Electricity – 01 – L
Patent
H - Electricity
01
L
H01L 31/16 (2006.01) H01L 31/173 (2006.01)
Patent
CA 2225751
A method of making a monolithic structure (100) for an optocoupler that provides improved linearity. The method includes forming an output signal photodiode (141, 142) and a feedback control signal photodiode (151, 152) on a single chip with an LED (190). The photodiodes (141, 142, 151, 152) are configured and positioned relative to the LED (190) to compensate for any non- uniformities in the light received from the LED (190).
L'invention se rapporte à un procédé de fabrication d'une structure monolithique pour photocoupleur, dans le but d'améliorer la linéarité. Le procédé consiste à placer une photodiode pour signaux de sortie (141, 142) et une photodiode pour signaux de commande de réaction (151, 152) sur une puce unique équipée d'une diode luminescente (190). On détermine la configuration et la position des photodiodes (141, 142, 151, 152) par rapport à la diode luminescente (190) de manière à compenser d'éventuels manques d'uniformité dans la lumière reçue venant de la diode luminescente (190).
Fetherstonhaugh & Co.
Siemens Microelectronics Inc.
LandOfFree
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