Intersil Americas Inc.

Intersil Corporation

Glenn Alan DeJong

Michael D Church

Kantilal Bacrania

Akira Ito

Jeffrey Michael Johnston

Choong-Sun Rhee

An integrated circuit has an isolation structure in the form of a double diode moat. The P substrate has P&plus; buried layers,and,on opposite sides of N&plus; buried layer,. Analog devices are formed behind one diode moat, digital CMOS devices are formed behind the other moat.

Analog-to-digital converter and method of fabrication

An integrated circuit has a pseudosubstrate 6060 with an isolation moat 9505. Substrate 6001 has one conductivity and a subcircuit region 6060 has an opposite conductivity. Digital CMOS devices are formed in the subcircuit over region 6060 and operate between zero to +5 volts. Analog devices are formed over the rest of the substrate and operate between plus and minus 5 volts. The moat 9505 isolates the digital CMOS devices from the analog devices.

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Merritt Island, FL, United States of America

Glenn Alan DeJong