Patent ID: 11887999
Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 11:
12. A photodetector comprising:
a first group of photodiodes and a second group of photodiodes formed on a silicon substrate and including a germanium layer as a light absorption layer, the first and second groups of photodiodes being an entirety of the photodiodes formed on the silicon substrate, the first group of photodiodes being formed orthogonal to the second group of photodiodes on the silicon substrate; and
two or more integrated circuits monolithically integrated on the silicon substrate,
wherein each of the two or more integrated circuits is connected to two or more photodiodes of the first and second groups of photodiodes formed on the silicon substrate,
an integrated circuit of the two or more integrated circuits is arranged equidistantly from each of the two or more photodiodes, and
the number of the two or more photodiodes corresponding to each of the two or more integrated circuits is equal.