Fast CMOS-integrated finger photodiodes for a wide spectral range
In: ESSDERC 2002 : 32nd European solid-state device research conference (Firenze, 24-26 September 2002) :435-438
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Zugriff:
A new monolithically integrated photodiode in CMOS technology using p-type substrate is presented. This photodiode is optimized for a high speed and a wide spectral range from red to blue/UV. The cathode finger structure of the photodiode increases the quantum efficiency for a wavelength of 400 nm to 46 % compared to a value of 14 % for a conventional photodiode without a finger cathode. With an antireflection coating a further increase to a quantum efficiency of 70 % is possible for the finger photodiode. Rise and fall times below 1 ns are measured for this photodiode for red and UV light. The corresponding bandwidths are larger than 470 MHz. Such a fast and highly efficient photodiode is needed in near-future optoelectronic integrated circuits (OEICs) for applications in optical storage systems like DVD (Digital Versatile Disk) and DVR (Digital Video Recording).
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Fast CMOS-integrated finger photodiodes for a wide spectral range
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Autor/in / Beteiligte Person: | ZIMMERMANN, H ; DIETRICH, H ; GHAZI, A ; SEEGEBRECHT, P |
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Quelle: | ESSDERC 2002 : 32nd European solid-state device research conference (Firenze, 24-26 September 2002) :435-438 |
Veröffentlichung: | Bologna: University of Bologna, 2002 |
Medientyp: | Konferenz |
Umfang: | print, 10 ref |
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