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Planar GaAs IC technology: Applications for digital LSI

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3 Author(s)

This technology utilizes multiple localized ion implantations directly into semi-insulating GaAs substrates, with unimplanted areas providing isolation between circuit elements. This approach allows for high yield, high density circuits, with optimization of various types of devices (e.g., GaAs MESFETs, high-speed Schottky-barrier diodes, etc.) made possible by optimizing the implantation profile for each type of device. The application of this fabrication technology for high-speed, ultra low power digital integrated circuits using a new circuit approach called Schottky diode-FET logic (SDFL) is described. Experimental GaAS SDFL logic ICs with LSI/VLSI compatible power levels (200-500 μW/gate) and circuit densities (<10/SUP -3/ mm/SUP 2//gate) have been fabricated.

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Solid-State Circuits, IEEE Journal of  (Volume:13 ,  Issue: 4 )