| 摘要 |
Disclosed is an avalanche photodiode for optical communication, which has a low dark current, a high speed, and a high gain. Also disclosed is a receiver using the avalanche photodiode. In the avalanche photodiode having a light absorbing layer (4) and a multiplying layer (7), the light absorbing layer (4) and the multiplying layer (7) are spatially and electrically separately disposed in the parallel direction (horizontal direction above a substrate (1)) to the crystal plane, and the light absorbing layer (4) and the multiplying layer (7) are electrically connected to each other with a conductive wiring line. Thus, since the multiplying layer (7) is thinned, and the light absorbing layer (4) and the multiplying layer (7) are formed of a high quality crystal, the low dark current, the high speed, and the high gain can be achieved in the avalanche photodiode. |
