DocumentCode
3555202
Title
Low dark current glass bonded AlGaAs/GaAs Schottky gate imaging CCD
Author
Liu, Y.Z. ; Milano, R.A. ; Anderson, R.J. ; Deyhimy, I. ; Cohen, J.
Author_Institution
Rockwell International Electronics Research Center, Thousand Oaks, California
Volume
26
fYear
1980
fDate
1980
Firstpage
338
Lastpage
341
Abstract
The fabrication and characterization of a glass bonded, backside illuminated, AlGaAs/GaAs heterojunction CCD imager is reported. The dark current of these devices is found to be <1 nA/(cm2which indicates that the glass bonding procedure does not adversely effect the dark current device performance. To isolate process induced degradation of the CCD Schottky gates, diodes were fabricated on n-Alx Ga1-x As (0 ≤ × ≤ 0.55) by e-beam evaporation of Cr/AuGe, Ti/Pt/Au and Cr/Au. The data indicate that φBn (Cr) ≤ φBn (Ti) for all solid compositions examined. Low temperature annealing causes a degradation of the Cr/AuGe and Ti/Pt/Au devices; however, the characteristics of the Cr/Au diodes improve significantly
Keywords
Bonding; Charge coupled devices; Chromium; Dark current; Degradation; Fabrication; Gallium arsenide; Glass; Gold; Schottky diodes;
fLanguage
English
Publisher
ieee
Conference_Titel
Electron Devices Meeting, 1980 International
Type
conf
DOI
10.1109/IEDM.1980.189831
Filename
1481274
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