DocumentCode
3556570
Title
A highly latchup-immune 1 µm CMOS technology fabricated with 1 MeV ion implantation and self-aligned TiSi2
Author
Lai, F.S. ; Wang, L.K. ; Taur, Y. ; Sun, Y.C. ; Petrillo, K.E. ; Chicotka, S.M. ; Petrillo, E.J. ; Polcari, M.R. ; Bucelot, T.J. ; Zicherman, D.S.
Author_Institution
IBM General Products Division, San Jose, California
fYear
1985
fDate
1-4 Dec. 1985
Firstpage
513
Lastpage
516
Abstract
A 1 µm n-well CMOS technology with high latchup immunity is designed, realized, and characterized. The main features of this technology are : 1 MeV ion-implanted retrograde n-well, buried contact, arsenic-phosphorous double diffused n+/n-junction, self-aligned TiSi2 on gate and diffusions with nitride spacer, and thin p epi on p+substrate. This technology has been demonstrated via the successful fabrication of high-performance 64K CMOS SRAM chips. It is also observed that the silicide plays an important role in latchup prevention since it reduces the emitter efficiencies of parasitic bipolar devices.
Keywords
CMOS technology; Electrical resistance measurement; Epitaxial layers; Etching; Implants; Ion implantation; MOS devices; Silicon; Substrates; Subthreshold current;
fLanguage
English
Publisher
ieee
Conference_Titel
Electron Devices Meeting, 1985 International
Conference_Location
Washington, DC, USA
Type
conf
DOI
10.1109/IEDM.1985.191016
Filename
1485566
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