Modeling of InGaAs MSM photodetector for circuit-level simulation

Author

Xiang, Andrew ; Wohlmuth, Walter ; Fay, Patrick ; Kang, Sung-Mo ; Adesida, Ilesanmi

Author_Institution

Dept. of Electr. & Comput. Eng., Illinois Univ., Urbana, IL, USA

Volume

14

Issue

5

fYear

1996

fDate

5/1/1996 12:00:00 AM

Firstpage

716

Lastpage

723

Abstract

An accurate model for In_0.53Ga_0.47As metal-semiconductor-metal (MSM) photodetectors is presented for circuit-level simulation. Dark and dc current characteristics are investigated and modeled. To accurately simulate the large-signal response of MSM photodetectors, impulse response functions and convolution integrals are implemented into SPICE. The transit-time limitation is also incorporated into the small-signal analysis. Most circuit parameters preserve the physical meaning. S-parameter measurements are used to find the circuit parameters critical to transient and ac analyses. Results are compared with experimentally obtained data, and excellent agreement is obtained consistently on InGaAs photodetectors of different sizes

Keywords

III-V semiconductors; S-parameters; SPICE; gallium arsenide; indium compounds; infrared detectors; metal-semiconductor-metal structures; optical receivers; photodetectors; semiconductor device models; transient analysis; In_0.53Ga_0.47As; In_0.53Ga_0.47As metal-semiconductor-metal photodetectors; InGaAs MSM photodetector; S-parameter measurements; SPICE; ac analysis; accurate model; circuit-level simulation; convolution integrals; dark characteristics; dc current characteristics; impulse response functions; large-signal response; physical meaning; small-signal analysis; transient analysis; transit-time limitation; Circuit simulation; Dark current; Indium gallium arsenide; Optical receivers; Photodetectors; Schottky barriers; Substrates; Thermionic emission; Transient analysis; Voltage;

fLanguage

English

Journal_Title

Lightwave Technology, Journal of

Publisher

ieee

ISSN

0733-8724

Type

jour

DOI

10.1109/50.495150

Filename

495150