TY - JOUR
T1 - A 3.5-ns/77 K and 6.2-ns/300 K 64K CMOS RAM with ECL Interfaces
AU - Chappell, Terry I.
AU - Schuster, Stanley E.
AU - Chappell, Barbara A.
AU - Allan, James W.
AU - Sun, Jack Y.C.
AU - Klepner, Stephen P.
AU - Franch, Robert L.
AU - Greier, Paul F.
AU - Restle, Phillip J.
PY - 1989/8
Y1 - 1989/8
N2 - This paper describes a 64K CMOS RAM with ECL interfaces having access times of 6.2 ns at room temperature and, with a CMOS process specifically optimized for low-temperature operation, 3.5 ns at liquid nitrogen (LN) temperature. The CMOS processes feature a 0.5-μm Lett, self-aligned TiSi2, double-level metal, and an average minimum feature size of 1.35 μm. Circuits key to high-speed operation are described with emphasis on low power and safe operation. Unique aspects of LN-temperature operation are discussed including circuit/device interactions, the impact of velocity saturation effects on channel length, temperature and power supply sensitivities, and the characteristics of the ECL-to-CMOS receiver circuits.
AB - This paper describes a 64K CMOS RAM with ECL interfaces having access times of 6.2 ns at room temperature and, with a CMOS process specifically optimized for low-temperature operation, 3.5 ns at liquid nitrogen (LN) temperature. The CMOS processes feature a 0.5-μm Lett, self-aligned TiSi2, double-level metal, and an average minimum feature size of 1.35 μm. Circuits key to high-speed operation are described with emphasis on low power and safe operation. Unique aspects of LN-temperature operation are discussed including circuit/device interactions, the impact of velocity saturation effects on channel length, temperature and power supply sensitivities, and the characteristics of the ECL-to-CMOS receiver circuits.
UR - http://www.scopus.com/inward/record.url?scp=0024717345&partnerID=8YFLogxK
U2 - 10.1109/4.34062
DO - 10.1109/4.34062
M3 - Article
AN - SCOPUS:0024717345
VL - 24
SP - 859
EP - 868
JO - IEEE Journal of Solid-State Circuits
JF - IEEE Journal of Solid-State Circuits
SN - 0018-9200
IS - 4
ER -