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A 1-/spl mu/m Bipolar VLSI Technology

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5 Author(s)

A 1-/spl mu/m VLSI process technology has been developed for the fabrication of bipolar circuits. The process employs electron-beam slicing writing, plasma processing, ion implantation, and low-temperature oxidation/annealing to fabricate bipolar device structures with a minimum feature size of 0.9 /spl mu/m. Both nonisolated I/sup 2/L and isolated Schottky transistor logic (STL) devices and circuits have been fabricated with this process technology. The primary demonstration vehicle is a seated LSI, I/sup 2/L, 4-bit processor chip (SBP0400) with a minimum feature size of 1 /spl mu/m. Scaled SPB0400's have been fabricated that operate at clock speeds 3X higher than their full-size counterparts at 50-mA chip current. Average propagation delay has been measured as a function of minimum feature size for both I/sup 2/L and STL device designs. Power-delay products of 14 fJ for I/sup 2/L and 30 fJ for STL have been measured.

Published in:

IEEE Journal of Solid-State Circuits  (Volume:15 ,  Issue: 4 )