Patent · US Active

Determining capacitance and resistance-capacitance time constant

US11674989B1 · kind B1 · utility

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17Claims
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Assignee

Inventors

Key dates

Filing dateOct 9, 2020
Grant dateJun 13, 2023
Priority date—
Expiry dateAug 18, 2041

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG01R27/2605
  • WIPO fieldMeasurement
  • WIPO sectorInstruments

Abstract

Various embodiments provide for determining a capacitance (or capacitor value) of a circuit, determining a resistance-capacitance time constant (or RC time constant) of a circuit, or both. The circuit can comprise an integrated circuit (IC), such as a circuit implemented on die. An IC of some embodiments generates a frequency of a dock wave signal (e.g., an output signal) such that the clock wave signal encodes an effective capacitance of the IC, a RC time constant of the IC, or both. A component external to the IC, such as a controller, can receive the clock wave signal and determine the effective capacitance of the IC, the RC time constant of the IC, or both based on the received clock wave signal.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.