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US 6,486,707 B1Granted
CMOS pass transistor logic circuitry using quantum mechanical tunneling structures
AssigneeTexas Instruments Incorporated
InventorXiaowei Deng
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Abstract
CMOS semiconductor pass-transistor logic circuitry (200) is disclosed, comprising pass transistor circuitry (204, 212, 218), and tunneling structure circuitry (228) coupled to the pass transistor circuitry; where the tunneling structure circuitry is adapted to hold a node (222) voltage stable by compensating a leakage current (302) originating from said pass transistor circuitry.
Claims11
A pass-transistor logic device comprising:
- pass transistor circuitry implementing a Boolean condition comprising at least one pass transistor having an input terminal, an output terminal and a control gate for coupling a signal at the input terminal through the transistor and to the output terminal responsive to a signal at the control gate;
- and
- tunneling structure circuitry, coupled to said pass transistor circuitry at a node at which said Boolean condition is evaluated, to compensate a leakage current originating from said pass transistor circuitry, said tunneling structure circuitry further holding said node at a given voltage supplied by precharge circuitry.
A semiconductor device performing Boolean operations, said device comprising:
- pass transistor network circuitry implementing a specified Boolean condition comprising at least one pass transistor having an input terminal, an output terminal and a control gate and coupling a signal at the input terminal to the output terminal through the pass transistor responsive to a signal at the control gate;
- and
- tunneling diode circuitry, coupled to said pass transistor network circuitry at a node which said specified Boolean condition is to be evaluated, to compensate a leakage current originating from said pass transistor network circuitry and further holding said node at a given voltage supplied by pre-charge circuitry.
- 7.The device of claim 6 wherein said device, including said tunneling structure circuitry, is fabricated in a CMOS process.
1 more element
A method of producing a pass transistor logic device, said method comprising the steps of:
- providing a pass transistor circuit implementing a specified Boolean condition comprising at least one pass transistor having an input terminal, an output terminal and a control gate and coupling a signal at the input to the output responsive to a signal at the control gate;
- providing tunneling structure circuitry;
- providing a node where said specified Boolean condition is evaluated;
- providing pre-charge circuitry coupled to said node;
- coupling said tunneling structure circuitry to said pass transistor circuit at said node, said tunneling structure circuitry compensating for a leakage current originating from said pass transistor circuit by holding said node at a given voltage supplied by said precharge circuitry.
2 more elements
Dependencies are inferred from the claim text.