Performance-on-demand IC chip design in integrated-injection logic
AssigneeInternational Business Machines Corporation
InventorTak H. Ning
Life of this patent
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Abstract
A circuit comprising a first injection BJT in a common-base configuration and configured to output a first injection current at its collector. A first multiple-collector BJT is in an open collector configuration, is electrically coupled to the first injection BJT, and is arranged to receive the first injection current at its base. The first multiple-collector BJT has a capacitance load at one of its collectors. A first supply voltage is electrically coupled to the first injection BJT. The first supply voltage is configured to dynamically adjust during operation of the circuit in response to a change in the capacitance load of the first multiple-collector BJT.
Claims20
A circuit comprising:
- a first injection bipolar junction transistor (BJT) in a common-base configuration and configured to output a first injection current at its collector;
- a first multiple-collector BJT in an open collector configuration, the first multiple-collector BJT electrically coupled to the first injection BJT and arranged to receive the first injection current at its base, the first multiple-collector BJT having a capacitance load at one of its collectors;
- and
- a first supply voltage electrically coupled to the first injection BJT, the first supply voltage configured to dynamically adjust during operation of the circuit in response to a change in the capacitance load of the first multiple-collector BJT.
A logic block comprising:
- a set of inverters, each inverter from the set of inverters configured to float its output when its input is shunted to ground and sink its output to ground when its input is not shunted to ground, each inverter from the set of inverters including:
- an injection bipolar junction transistor (BJT) in a common-base configuration electrically coupled to a supply voltage and configured to output an injection current at its collector;
- a multiple-collector BJT in an open collector configuration, the multiple-collector BJT electrically coupled to the injection BJT and arranged to receive the injection current at its base;
- a boundary inverter from the set of inverters, the boundary inverter electrically coupled at its base to a non-boundary inverter from the set of inverters, the boundary inverter configured to drive, at its multiple-collector BJT, an output signal outside the logic block;
- a first supply voltage electrically coupled to the supply voltage of the boundary inverter;
- a second supply voltage electrically coupled to the supply voltage of the non-boundary inverter, the first supply voltage and the second supply voltage are electrically isolated from each other.
A circuit comprising:
- a first injection bipolar junction transistor (BJT) in a common-base configuration electrically coupled to a first supply voltage and configured to output a first injection current at its collector;
- a first multiple-collector BJT in an open collector configuration, the first multiple-collector BJT electrically coupled to the first injection BJT and arranged to receive the first injection current at its base, the first multiple-collector BJT having a capacitance load at one of its collectors;
- a second injection BJT in the common-base configuration electrically coupled to a second supply voltage;
- a second multiple-collector BJT in the open collector configuration, the second multiple-collector BJT electrically coupled at its collector to the base of the first multiple-collector BJT;
- and
- a first power supply arranged to output the first supply voltage;
- and
- a second power supply arranged to output the second supply voltage different from the first supply voltage, the first supply voltage and the second supply voltage are electrically isolated from each other.
Dependencies are inferred from the claim text.