Problems and possible solutions to implement high-speed logic VLSI's with advanced CMOS I BiCMOS technology are discussed. The technology trend is summarized first in conjunction with its impact on the circuit designs. The paper covers BiCMOS circuit designs and other basic high-speed circuit techniques including gate sizing, dynamic I reduced swing circuits, interconnect I clock delay, and on-chip memory. These items are discussed with possible scaling effects. Future highspeed design should cope with 1 o w -V~~ related problems including threshold voltage scaling, interconnection delay problems including clock distribution problems, power and noise. These constraints get severer as scaling advances.