Photodetection device, process for the production of this device

Details Photodetection device, process for the production of this device Photodetection device, process for the production of this device

1998-11-12

2000-12-26

Le, Que T.

Radiant energy

Photocells; circuits and apparatus

Photocell controlled circuit

136249, 136256, 438 71, H01L 3100

Patent

active

061663689

ABSTRACT:
A photodetection device including at least one element incorporating a radiation absorption layer and an unabsorbed radiation reflection layer. The absorbing layer creates a first phase shift of the reflected radiation compared with the incident radiation. According to the invention, between the absorbing layer and the reflecting layer a layer is provided creating a second phase shift, which compensates the first phase shift for obtaining a substantially flat spectral response of the device.

REFERENCES:
patent: 4442310 (1984-04-01), Carlson et al.
patent: 5250120 (1993-10-01), Takada et al.
patent: 5569332 (1996-10-01), Glatfelter et al.

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