Semiconductor circuitry
AssigneeKioxia Corporation
InventorNaoki Kitazawa
Life of this patent
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Abstract
A semiconductor circuitry includes a first circuitry having a differential transistor pair and a pair of current sources connected in series to the differential transistor pair, a pair of transmission lines connected to the differential transistor pair at the opposite side to the current sources, and a second circuitry, connected to a node between the differential transistor pair and the current sources, and configured to test operations of at least the differential transistor pair and a latter-stage circuity connected to the transmission lines, in the state where the current outputs of the pair of current sources are stopped.
Claims16
A semiconductor circuitry comprising:
- a first circuitry comprising a differential transistor pair and a pair of current sources connected in series to the differential transistor pair;
- a pair of transmission lines connected to the differential transistor pair at an opposite side to the current sources;
- and
- a second circuitry, connected to a node between the differential transistor pair and the current sources, and configured to test operations of at least the differential transistor pair and a latter-stage circuitry connected to the transmission lines, in a state where current outputs of the pair of current sources are stopped,
- wherein the second circuitry comprises at least one transistor of a different conductive type from a conductive type of the differential transistor pair.
A semiconductor circuitry comprising:
- a first circuitry including a differential transistor pair and a pair of current sources connected to sources or emitters, respectively, of the differential transistor pair;
- a pair of transmission lines connected to drains or correctors, respectively, of the differential transistor pair;
- and
- a second circuitry, connected to the sources or emitters of the differential transistor pair, and configured to test operations of at least the differential transistor pair and a latter-stage circuitry connected to the transmission lines, in a state where current outputs of the pair of current sources are stopped,
- wherein the second circuitry comprises at least one transistor of a different conductive type from a conductive type of the differential transistor pair.
Dependencies are inferred from the claim text.