Optoelectronic integrated circuit

Details Optoelectronic integrated circuit Optoelectronic integrated circuit

1992-09-15

1994-10-18

James, Andrew J.

Active solid-state devices (e.g., transistors, solid-state diode

Incoherent light emitter structure

257 80, 257 81, 257 82, 257 84, H01L 29161, H01L 29205, H01L 29225, H01L 3300

Patent

active

053571215

ABSTRACT:
An optoelectronic integrated circuit includes a light responsive element for converting an optical signal into an electrical signal and an electronic circuit for processing the electrical signal. The light responsive element is disposed on a first surface of a substrate and includes p side electrodes and n side electrodes alternatingly arranged parallel to each other. The electronic circuit is disposed on a second surface of the substrate. The light responsive element is electrically connected to the electronic circuit by a via hole penetrating the substrate. In this structure, light incident on the first surface is almost completely absorbed by the substrate and hardly reaches the electronic circuit on the second surface. Therefore, variations in operation of the electronic circuit, such as an increase in drain current, are reduced. In addition, since the degree of freedom in arranging these elements on both surfaces of the substrate is increased, high-density integration is achieved, resulting in a small-sized IC chip.

REFERENCES:
patent: 4857746 (1989-08-01), Kuhlmann et al.
Horimatsu et al, "Compact Transmitter And Receiver Modules With Optoelectronic-Integrated Circuits For Optical LAN's", Journal of Lightwave Technology, vol. LT-4, No. 6, Jun. 1986.
Slayman et al, "Frequency And Pulse Response Of A Novel High Speed Interdigital Surface Photoconductor (IDPC)", IEEE Electron Device Letters, vol. EDL-2, No. 5, May 1981, pp. 113-114.

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