Title :
Design of a 64×64 photo current multiplexer for use in astronomical applications
Author :
Steele, C. ; Walmsley, C. ; Timlin, A.
Author_Institution :
Walmsley Microelectron. Ltd., Edinburgh, UK
Abstract :
An investigation into techniques for the realization of a two-dimensional, photo-current multiplexer for use in astronomical applications is described. The design of a device based on this work is then described. The multiplexer uses a gated readout structure and an addressable buffer scheme to integrate the photo-currents generated by a staring array of indium antimonide (InSb) IR photodiodes bump bonded directly to the multiplexer. Fabricated in a 3-μm CMOS technology, the device has been successfully bonded to a photodiode array, and evaluation results have been obtained at a temperature of 5 K
Keywords :
III-V semiconductors; MOS integrated circuits; astronomical techniques; computerised picture processing; digital integrated circuits; indium antimonide; infrared imaging; multiplexing equipment; photodiodes; 2D photocurrent multiplexer; 3 micron; 5 K; CMOS technology; IR photodiodes; InSb; addressable buffer scheme; astronomical applications; bump bonding; gated readout structure; photodiode array; staring array; Anodes; Bonding; CMOS technology; Capacitance; Diodes; Multiplexing; Noise generators; Signal analysis; Temperature; Voltage;
Conference_Titel :
Custom Integrated Circuits Conference, 1990., Proceedings of the IEEE 1990
Conference_Location :
Boston, MA
DOI :
10.1109/CICC.1990.124681
