Agilent Technologies, Inc.

Other

Thomas Edward Kopley

Thomas Edward Dungan

Dietrich Werner Vook

Kenneth D Poulton

Vamsi K Srikantam

Phillip W Barth

Ying-Lan Chang

Nicolas J Moll

Robert M R Neff

Huy Le

Synthetic nanopore fabrication methods and structures are provided. Nanoscale transistor fabrication methods and structures are provided.

Methods of fabrication employing nanoscale mandrels

The present method reduces variations in noise and temperature in a mixed-signal circuit including memory. Memory electrically proximate an analog circuit is provided and a digital data word received at the memory. When the data word is not a desired data word, a dummy write to the memory is performed. When the data word is a desired data word, the data word is written to the memory. The mixed-signal circuit includes an analog circuit, memory electrically proximate to the analog circuit and connected to receive digital data words, and a memory controller connected to the memory. The memory controller is operable to cause the memory to write to the memory each of the data words that is a desired data word and additionally to perform a dummy write to memory for each of the data words that is not a desired data word.

Reduction of noise and temperature variation in mixed-signal integrated circuits

The method defines an input state vector that achieves low power consumption when applied to the circuit inputs of a digital circuit in an idle state. The digital circuit includes one or more circuit elements of respective circuit element types. In the method, idle power values including idle power values for each circuit element type. The idle power values for each circuit element type correspond to different states of the inputs of a circuit element of the circuit element type. Additionally the idle power values are used to determine, for each circuit element, states of the inputs of the circuit element that would set the circuit element to a lowest-allowable idle power state when the digital circuit is in the idle state. The states determined for those of the inputs that constitute the circuit inputs define the input state vector. The states are also determined accounting for the logic constraints of the digital circuit.

Method and apparatus for defining an input state vector that achieves low power consumption in digital circuit in an idle state

The method defines an input state vector that achieves low power consumption when applied to the circuit inputs of a digital circuit in an idle state. In the method, independent determinations are performed. Each determination defines a respective set of the input states of the input state vector. Any conflict the definitions of any one or more of the input states is resolved in favor of the definition of the one or more of the input states that achieves the lowest idle power consumption when the input state vector incorporating the one or more of the input states in accordance with the definition is applied to the circuit inputs of the digital circuit in the idle state.

Method and apparatus for defining an input state vector that achieves low power consumption in a digital circuit in an idle state

The analog-to-digital conversion system comprises an analog-to-digital converter that includes a digital output, memory having a data input and a data output, an output port, an input data bus that extends from the digital output of the analog-to-digital converter to the data input of the memory and an output data bus that extends from the data output of the memory to the output port. The analog-to-digital converter is structured to generate digital samples at a sampling rate. The input data bus is structured to operate at the sampling rate of the ADC. At least one of the data output of the memory, the output data bus and the output port is structured to operate at a maximum rate less than the sampling rate.

Analog-to-digital converter with on-chip memory

A control circuit for a ring oscillator uses an integrator and a comparator. The integrator receives a square wave signal as an input and provides a triangular wave signal as an output. The comparator generates a second square wave signal by comparing the triangular wave signal and a reference voltage. Duty cycle for the ring oscillator can be modulated by varying the reference voltage. For one embodiment of the control circuit, signal frequency of the ring oscillator can be modulated by varying biasing current for the comparator to set slew rate of the comparator. For one embodiment of the control circuit, a resistor and a capacitor form a simple RC circuit for the integrator. For an alternative embodiment of the control circuit, a resistor and an amplifier with a capacitor in a negative feedback loop form an active RC circuit for the integrator. For one embodiment of the control circuit, the comparator is an inverting comparator. A ring oscillator employing the control circuit can be formed using a plurality of inverters coupled in series with the control circuit. A test system can be formed by coupling an output buffer and the ring oscillator to a device-under-test and monitoring the ring oscillator frequency and device characteristics.

Integrator/ comparator control of ring oscillator frequency and duty cycle

A fabrication method for providing isolation between adjacent regions of an integrated circuit includes providing a guard layer over field edges that are the interfaces between field oxide regions and diffusion regions in which dopant is introduced. The guard layer will inhibit introduction of dopant along the field-edge, so that a substantially dopant-free transition strip is formed. The transition strip inhibits current leakage from the active region to the field oxide region. In one embodiment, the active region is an active area diode, such as used to form an Active Pixel Sensor (APS) pixel. The guard layer is biased so as to further inhibit current leakage during circuit operation. In another embodiment, the method is used in the fabrication of transistors for APS pixels having an overlay photodiode structure.

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La Honda, CA, United States of America

Thomas Edward Kopley