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Proceedings Paper

Transition to second-generation HgCdTe FPA
Author(s): Y. Juravel; Avi Strum; Amos Fenigstein; Eliezer Weiss; Nili Mainzer; Nira Sapir; I. Lokomski; Eyal Malkinson; Baruch Rosner; A. Marcus; H. Shenzer; Abraham Fraenkel
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Paper Abstract

The transition to second generation backside-illuminated dense LWIR FPAs requires consideration of issues not previously relevant in first generation modules: unlike in front illuminated arrays, the MTF (or effective area) of a pixel is no longer close to the ideal sinc function. The cutoff wavelength, quantum efficiency and crosstalk depend on the thickness and composition grading of the epitaxial layer. The tradeoff between resolution and sensitivity demands extensive engineering and optimization of the array configuration. The transition was accomplished by comparisons of simulations with experimental results. Expectations of performance indicators, such as MTF, quantum efficiency and crosstalk were obtained by detailed Monte-Carlo simulations. The results were used to configure the focal plane array. This paper discuses the basic assumptions and simulation results and compares them with the performance of actual detectors and various test structures.

Paper Details

Date Published: 13 August 1997
PDF: 10 pages
Proc. SPIE 3061, Infrared Technology and Applications XXIII, (13 August 1997); doi: 10.1117/12.280385
Show Author Affiliations
Y. Juravel, Semiconductor Devices (Israel)
Avi Strum, Semiconductor Devices (Israel)
Amos Fenigstein, Semiconductor Devices (Israel)
Eliezer Weiss, Semiconductor Devices (Israel)
Nili Mainzer, Semiconductor Devices (Israel)
Nira Sapir, Semiconductor Devices (Israel)
I. Lokomski, Semiconductor Devices (Israel)
Eyal Malkinson, Semiconductor Devices (Israel)
Baruch Rosner, Semiconductor Devices (Israel)
A. Marcus, Semiconductor Devices (Israel)
H. Shenzer, Semiconductor Devices (Israel)
Abraham Fraenkel, Semiconductor Devices (Israel)


Published in SPIE Proceedings Vol. 3061:
Infrared Technology and Applications XXIII
Bjorn F. Andresen; Marija Strojnik, Editor(s)

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