Abstract
A BiCMOS gate array in 0.8- mu m technology with CMOS intrinsic gate delays of 100 ps plus 60 ps/fan-out and BiCMOS intrinsic delays of 200 ps with a 17-ps/fan-out drive factor is discussed. A compact base cell (750 mu m/sup 2//gate) has been designed with full bipolar drive capability for the efficient layout of both primitive gates and large-arrayed macros, such as register files and multipliers. A 106 K-gate array has been built on a 1.14-cm/sup 2/ chip with ECL I/O capability. The place and route in three levels of metal provide array utilization greater than 90%. The gate array was used to implement a 74 K-gate filter design with testability features such as JTAG and two-phase scan. >
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