摘要:
A high-density deep trench capacitor array with a plurality of leakage sensors and switch devices. Each capacitor array further comprises a plurality of sub-arrays, wherein the leakage in each sub-array is independently controlled by a sensor and switch unit. The leakage sensor comprises a current mirror, a transimpedance amplifier, a voltage comparator, and a timer. If excessive leakage current is detected, the switch unit will automatically disconnect the leaky capacitor module to reduce stand-by power and improve yield. An optional solid-state resistor can be formed on top of the deep trench capacitor array to increase the temperature and speed up the leakage screening process.
摘要:
A high-density deep trench capacitor array with a plurality of leakage sensors and switch devices. Each capacitor array further comprises a plurality of sub-arrays, wherein the leakage in each sub-array is independently controlled by a sensor and switch unit. The leakage sensor comprises a current mirror, a transimpedance amplifier, a voltage comparator, and a timer. If excessive leakage current is detected, the switch unit will automatically disconnect the leaky capacitor module to reduce stand-by power and improve yield. An optional solid-state resistor can be formed on top of the deep trench capacitor array to increase the temperature and speed up the leakage screening process.
摘要:
A compact, low-power, asynchronous, resistor-based memory read circuit includes a memory cell having a plurality of consecutive memory states, each of said states corresponding to a respective output voltage. A sense amplifier reads the state of the memory cell. The sense amplifier includes a voltage divider configured to receive the output voltage of the memory cell and to output a settled voltage an amplifier having a voltage threshold between the settled voltages associated with two of said consecutive memory states, configured to discriminate between said two consecutive memory states.
摘要:
Mechanisms are provided for either power gating or bypassing a voltage regulator. Responsive to receiving an asserted power gate signal to power gate the output voltage of the voltage regulator, at least one of first control circuitry power gates the output voltage of a first circuit or second control circuitry power gates the output voltage of a second circuit such that substantially no voltage to is output by the first circuit to a primary output node. Responsive to receiving an asserted bypass signal to bypass the output voltage of the voltage regulator, at least one of the first control circuitry bypasses the output voltage of the first circuit or the second control circuitry bypasses the output voltage of a second circuit such that substantially the voltage of a voltage source is output by the first circuit to the primary output node.
摘要:
A voltage regulator module (VRM) includes a first interface configured to couple to a first substrate interface at a first voltage. The VRM also includes a second interface configured to couple to a first processor interface at a second voltage. A first regulator module couples to the first interface and to the second interface. The first regulator module is configured to receive power at the first interface, to convert power to the second voltage, and to deliver power to the first processor interface at the second voltage. A method for providing power to a processor includes receiving power from a first substrate interface at a first voltage. The received power is regulated to generate power at a second voltage. The regulated power is provided to a processor at a first processor interface coupled to the processor. The processor interface delivers power to a logic group of a plurality of logic groups of the processor.
摘要:
A method for regulating a voltage using a linear voltage regulator is provided. The linear voltage regulator has a first circuit with a primary output node and a second circuit having first and second inverters electrically coupled to the primary output node. The method includes receiving a first voltage from a voltage source at the first circuit. The method further includes removing frequency components of the first voltage in a first frequency range to obtain an output voltage at the primary output node utilizing the first circuit. The method further includes removing frequency components of the output voltage in a second frequency range utilizing the first and second inverters of the second circuit, the second frequency range being greater than the first frequency range.
摘要:
A system and a method for determining a delay time interval of components are provided. The system includes a delay chain of components having a plurality of components wherein each component of the delay chain of components has a first delay time interval. The system utilizes a reference clock signal to stimulate the delay change of components and monitors a delay clock signal output by the delay chain of components to determine a delay time interval associated with each component in the delay chain of components.
摘要:
Embodiments of the present invention provide a device comprising a plurality of phase change memory cells, a word line, and a plurality of bit lines. Each phase change memory cell is coupled to a corresponding transistor. Each transistor is coupled to the word line. Each bit line is coupled to a phase change memory cell of the device. The device further comprises a programming circuit configured to program at least one phase change memory cell to the SET state by selectively applying a two-stage waveform to the word line and the bit lines of the device. In a first stage, a first predetermined low voltage and a first predetermined high voltage are applied at the word line and the bit lines, respectively. In a second stage, a second predetermined high voltage and a predetermined voltage with decreasing amplitude are applied at the word line and the bit lines, respectively.
摘要:
A linear voltage regulator is provided. The linear voltage regulator includes a first circuit configured to receive the first voltage from a voltage source and to remove frequency components of the first voltage in a first frequency range to obtain an output voltage at a primary output node. The linear voltage regulator further includes a second circuit having first and second inverters electrically coupled to the primary output node of the first circuit. The second circuit is configured to receive the output voltage and to remove frequency components of the output voltage in a second frequency range. The second frequency range is greater than the first frequency range.
摘要:
The on-chip power supply noise sensor detects high frequency overshoots and undershoots of the power supply voltage. By creating two identical current sources and attaching a time constant circuit to only one, the high frequency transient behavior differs while the low frequency behavior is equivalent. By comparing these currents, the magnitude of very high frequency power supply noise can be sensed and used to either set latches or add to a digital counter. This has the advantage of directly sensing the power supply noise in a manner that does not require calibration. Also, since the sensor requires only one power supply, it can be used anywhere on a chip. Finally, it filters out any lower frequency noise that is not interesting to the circuit designer and can be tuned to detect down to whatever frequency is needed.