43-ps 5.2-GHz macrocell array LSIs

A family of bipolar macrocell array LSIs has been developed which has a basic delay of 43 ps/CML and a toggle frequency of 5.2 GHz/flip-flop. This family uses a cascaded-differential and single-ended CML circuit and a highly advanced super self-aligned process technology (SST-1B) which uses a selectively ion-implanted collector technology based on SST-1A. Using the macrocell array LSIs, performances of 1.2 ns/1.2 W for a 6-bit multiplier, and 4.3 ns/3 W for a 16-bit multiplier have been achieved. >