Bi-directional silicon controlled rectifier structure
AssigneeInternational Business Machines Corporation
InventorsJames P. Di Sarro, Robert J. Gauthier, Jr., Junjun Li
Life of this patent
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Abstract
Bi-directional silicon controlled rectifier device structures and design structures, as well as fabrication methods for bi-directional silicon controlled rectifier device structures. A well of a first conductivity type is formed in a device region, which may be defined from a device layer of a semiconductor-on-insulator substrate. An anode of a first silicon controlled rectifier is formed in the first well. A cathode of a second silicon controlled rectifier is formed in the first well. The anode of the first silicon controlled rectifier has the first conductivity type. The cathode of the second silicon controlled rectifier has a second conductivity type opposite to the first conductivity type.
Claims18
A device structure comprising:
- a device region;
- a first well of a first conductivity type in the device region;
- a first silicon controlled rectifier including an anode in the first well, the anode of the first silicon controlled rectifier having the first conductivity type;
- and
- a second silicon controlled rectifier including a cathode in the first well, the cathode of the second silicon controlled rectifier having a second conductivity type opposite to the first conductivity type.
A design structure readable by a machine used in design, manufacture, or simulation of an integrated circuit, the design structure comprising:
- a device region;
- a first well of a first conductivity type in the device region;
- a first silicon controlled rectifier including an anode in the first well, the anode of the first silicon controlled rectifier having the first conductivity type;
- and
- a second silicon controlled rectifier including a cathode in the first well, the cathode of the second silicon controlled rectifier having a second conductivity type opposite to the first conductivity type.
Dependencies are inferred from the claim text.