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Journal of Lightwave Technology

Journal of Lightwave Technology

| A JOINT IEEE/OSA PUBLICATION

  • Vol. 27, Iss. 15 — Aug. 1, 2009
  • pp: 3303–3313

Integrated Silicon PIN Photodiodes Using Deep N-Well in a Standard 0.18-$\mu$m CMOS Technology

Berkehan Ciftcioglu, Lin Zhang, Jie Zhang, John R. Marciante, Jonathan Zuegel, Roman Sobolewski, and Hui Wu

Journal of Lightwave Technology, Vol. 27, Issue 15, pp. 3303-3313 (2009)


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Abstract

This paper studies integrated silicon photodiodes (PDs) implemented in standard CMOS technologies. A new PIN PD structure utilizing deep n-well is presented, and compared with conventional vertical and lateral PIN PDs at 850-nm wavelength and different bias conditions. Prototype PDs were fabricated in a 0.18-$\mu$m standard CMOS technology, and their DC, impulse and frequency responses were characterized. A 70$\,\times\,$70 $\mu$m$^2$ PD with the new structure achieved a 3-dB bandwidth of 2.2 GHz in small signal at 5-V bias, whereas conventional lateral and vertical PIN PDs could only operate up to 0.94 GHz and 1.15 GHz, respectively. At 5-V bias, the impulse response of the new PD exhibited a full-width at half-maximum pulsewidth of 127 ps, versus 175 and 150 ps for the conventional lateral and vertical ones, respectively. At 15.5-V bias, the bandwidth of this new PD reached 3.13 GHz, with an impulse response pulsewidth of 102 ps. The responsivity of all prototype PDs was measured at approximately 0.14 A/W up to 10-V bias, which corresponded to a quantum efficiency of 20%. The responsivity of the new PD could be further increased to 0.4 A/W or 58% quantum efficiency, when operating in the avalanche region at 16.2-V bias.

© 2009 IEEE

Citation
Berkehan Ciftcioglu, Lin Zhang, Jie Zhang, John R. Marciante, Jonathan Zuegel, Roman Sobolewski, and Hui Wu, "Integrated Silicon PIN Photodiodes Using Deep N-Well in a Standard 0.18-$\mu$m CMOS Technology," J. Lightwave Technol. 27, 3303-3313 (2009)
http://www.opticsinfobase.org/jlt/abstract.cfm?URI=jlt-27-15-3303

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