Active solid-state devices (e.g. – transistors – solid-state diode – Incoherent light emitter structure – In combination with or also constituting light responsive...
Patent
1995-09-07
1997-09-09
Tran, Minh-Loan
Active solid-state devices (e.g., transistors, solid-state diode
Incoherent light emitter structure
In combination with or also constituting light responsive...
257 82, 257 98, 257 99, 257100, H01L 2715
Patent
active
056659830
ABSTRACT:
It is an object of the present invention to provide a photocoupler which maintains a high electric isolation performance and has an improved optical coupling efficiency without any variation of a conventional structure and a conventional production process. The photocoupler includes a light emitting device 1 and a photo detector 2 disposed in a facing relationship to each other, a silicon resin 4 covering over the light emitting device 1, a light transmitting resin 5 molding the silicon resin 4 which covers over the light emitting device 1 and the photo detector 2, and a light shielding resin 6 molding the light transmitting resin 5. In the photocoupler, a light scattering material is mixed in the silicon resin 4 which covers over the light emitting device 1. The amount of light scattering material mixed in the silicon resin 4 can be selected from 0.1 to 5.0 percentage by weight of the amount of the silicon resin 4. Further, the silicon resin 4 can be shaped so that the face facing the photo detector 2 is concave.
REFERENCES:
patent: 4780752 (1988-10-01), Angerstein et al.
NEC Corporation
Tran Minh-Loan
LandOfFree
Photocoupler device having light emitting device and photo detec does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Photocoupler device having light emitting device and photo detec, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Photocoupler device having light emitting device and photo detec will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-72048