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US 10,770,561 B2Granted
Methods of fabricating dual threshold voltage devices
AssigneeSpin Memory, Inc.
InventorsGian Sharma, Amitay Levi, Kuk-Hwan Kim
Life of this patent
Estimating the term…
Abstract
An annular device is provided. The annular device includes a first transistor including a first input terminal and a second transistor including a second input terminal. The first input terminal and the second input terminal extend radially outward from the annular device, and wherein the first input terminal is aligned with the second input terminal.
Claims15
An annular device, comprising:
- a cylindrical pillar, comprising:
- a vertical cylindrical core;
- and
- a plurality of layers that surround the vertical cylindrical core in succession, the plurality of layers including a first layer, a second layer, a third layer, and a fourth layer,
- wherein:
- the core, the first layer, and the second layer correspond to a first transistor including a first input terminal, wherein the first transistor is configured to have a first threshold voltage having a first magnitude;
- and
- the second layer, the third layer, and the fourth layer correspond to a second transistor including a second input terminal, wherein the second transistor is configured to have a second threshold voltage having a second magnitude distinct from the first magnitude.
5 more elements
An annular device, comprising:
- a core;
- and
- a plurality of layers that surround the core in succession, the plurality of layers including a first layer, a second layer, a third layer, and a fourth layer, wherein:
- the core, the first layer, and the second layer correspond to a first transistor including having a first input terminal;
- and
- the second layer, the third layer, and the fourth layer correspond to a second transistor including having a second input terminal;
- and
- the second layer is a common channel having a channel source and a channel drain;
- the first input terminal is coupled to the core, the first input terminal being configured to receive a first voltage for the first transistor;
- and
- the second input terminal is coupled to the fourth layer, the second input terminal being configured to receive a second voltage for the second transistor.
8 more elements
Dependencies are inferred from the claim text.