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Proceedings Paper

From an MMIC chip to a working cryogenic low-noise amplifier: a detailed study on packaging
Author(s): L. Valenziano; S. Mariotti; A. Armogida; A. Baù; M. Biggi; L. Carbonaro; A. Cremonini; A. De Rosa; M. Gervasi; A. Passerini; F. Schiavone; M. Zannoni; J. Zuccarelli
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Paper Abstract

Cryogenic Low Noise Amplifiers, based on MMIC HEMT technology, require a careful packaging to reach optimal performance. Differences between modeled and measured performance can often be related to chip mounting details. In the framework of the development of new cryogenic LNAs, described in a companion paper, we have developed a specific packaging to host W-band cryogenic MMIC LNAs. We present here some of the main factors analyzed in the design and chip integration activities. In particular, mechanical and thermal modeling, LNA chip gluing and adhesive properties, sensitivity to components integration accuracy (i.e. deviation from the ideal orientation). Preliminary test results are also reported.

Paper Details

Date Published: 24 September 2012
PDF: 11 pages
Proc. SPIE 8452, Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy VI, 84522V (24 September 2012); doi: 10.1117/12.926143
Show Author Affiliations
L. Valenziano, INAF - Istituto di Astrofisica Spaziale e Fisica Cosmica, Bologna (Italy)
S. Mariotti, INAF - Istituto di Radioastronomia (Italy)
A. Armogida, Pasquali Microwave Systems (Italy)
A. Baù, Univ. degli Studi di Milano-Bicocca (Italy)
M. Biggi, Pasquali Microwave Systems (Italy)
L. Carbonaro, INAF - Osservatorio Astrofisico di Arcetri (Italy)
A. Cremonini, INAF - Istituto di Radioastronomia (Italy)
A. De Rosa, INAF - Istituto di Astrofisica Spaziale e Fisica Cosmica, Bologna (Italy)
M. Gervasi, Univ. degli Studi di Milano-Bicocca (Italy)
A. Passerini, Univ. degli Studi di Milano-Bicocca (Italy)
F. Schiavone, INAF - Istituto di Astrofisica Spaziale e Fisica Cosmica, Bologna (Italy)
M. Zannoni, Univ. degli Studi di Milano-Bicocca (Italy)
J. Zuccarelli, INAF - Istituto di Astrofisica Spaziale e Fisica Cosmica, Bologna (Italy)


Published in SPIE Proceedings Vol. 8452:
Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy VI
Wayne S. Holland, Editor(s)

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