High-performance Ge:Ga arrays for the far infrared

Erick T. Young; Michael J. Scutero; George H. Rieke; Eugene E. Haller; Jeffrey W. Beeman

doi:10.1117/12.158661

20 October 1993 High-performance Ge:Ga arrays for the far infrared

Erick T. Young, Michael J. Scutero, George H. Rieke, Eugene E. Haller, Jeffrey W. Beeman

Author Affiliations +

Proceedings Volume 1946, Infrared Detectors and Instrumentation; (1993) https://doi.org/10.1117/12.158661
Event: Optical Engineering and Photonics in Aerospace Sensing, 1993, Orlando, FL, United States

Abstract

We report on progress in the construction of highly sensitive arrays of germanium photoconductors for operation at wavelengths between 40 to 120 micrometers . This technology is being developed for future astronomical missions in the far infrared such as SIRTF. We are evaluating construction techniques that will allow us to build 32 X 32 format arrays that are reliable and suitable to be qualified for space flight, while retaining the excellent performance of a prototype we have built and tested previously. We review the technical issues in constructing large format far infrared arrays, along with a description of the approaches that have been adopted in a prototype array to deal with these issues. We report on the development of two advanced methods to interconnect the detectors and readouts, that allow the extension of the Z-plane concept to larger formats: (1) Flex cable and (2) tape automated bonding. Both methods are being evaluated in a detailed series of laboratory experiments, including the electrical performance of the integrated readout/interconnect systems, thermal performance, ease of assembly of completed arrays, and mechanical ruggedness. These approaches will be discussed in terms of their use both with readouts that need to operate at temperatures above those acceptable for the detectors (approximately 20 K) and with readouts that can operate close to the detector temperature (approximately 2 K).

Citation Download Citation

Erick T. Young, Michael J. Scutero, George H. Rieke, Eugene E. Haller, and Jeffrey W. Beeman "High-performance Ge:Ga arrays for the far infrared", Proc. SPIE 1946, Infrared Detectors and Instrumentation, (20 October 1993); https://doi.org/10.1117/12.158661

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

;

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE