90results about How to "Optimize circuit design" patented technology

A method and on-chip controller for enhancing semiconductor chip process variability and lifetime reliability through a three-dimensional (3D) integration applied to electronic packaging. Also provided is an on-chip reliability / variability controller arrangement for implementing the inventive method.

A flexible display panel includes a flexible substrate, a plurality of pixels, a plurality of signal lines, a plurality of wave-like connecting lines, and a display medium. The flexible substrate has a plurality of display regions separated from one another and at least one foldable region located among the display regions. The pixels are disposed in the display regions. The signal lines are disposed on the flexible substrate and electrically connected to the pixels. The wave-like connecting lines are distributed in and across the foldable region. Each of the wave-like connecting lines is electrically connected to two of the signal lines adjacent to the wave-like connecting line. Each of the wave-like connecting lines across the foldable region has a wave-like pattern. The display medium is disposed on the flexible substrate to cover at least the display regions.

An automated design for manufacturability platform which provides integrated physical verification and manufacturing enhancement operations. The platform uses an efficient data structure capable of handling and manipulating both layout circuit and geometry characteristics, which permits a wide range of operations such as timing analysis, design-rule checking and optical proximity corrections on a single platform. This feature eliminates the need to translate layout representations between various tools without the requirement of using a common database. Moreover, the platform's common user interface enables encapsulated information exchange between the design and the manufacturing teams, permiting early consideration of manufacturing distortion or enhancement impact on circuit performance.

The invention provides an auto air-conditioner control system and a control method thereof, and aims to satisfy the requirements of security and comfort. The system comprises an air-conditioner control unit. The air-conditioner control unit receives signals from an internal temperature sensor, a sunlight sensor, an external temperature sensor, an air quality sensor and an evaporator temperature sensor and sends control commands to control the work of an electric velocity modulation module, a blower, an internal and external throttle actuator, a mixture throttle actuator, a pattern throttle actuator and a defrosting throttle actuator, especially the air-conditioner control unit is connected with a front body electronic control system and an engine electronic injection control system through a CAN bus; and the air-conditioner control unit adjusts the work of the air condition system through the state information of the front body electronic control system and the engine electronic injection control system. The system optimizes circuit design, simplifies the operation procedure, satisfies the comfort requirement of a driver, and improves maintenance convenience and the reliability and safety of the system.

A phase change memory with adjustable resistance ratio is disclosed, which includes a phase change layer and an interfacial layer formed to be in contact with each other, and at least two electrodes in contact with the phase change layer and the interfacial layer respectively. The contact sections between the two electrodes and the phase change layer and the interfacial layer define a contact area respectively, wherein, the area defined by the contact section between the electrode and the phase change layer is larger than the area defined by the contact section between the electrode and the interfacial layer.

A flexible display panel includes a flexible substrate, a plurality of pixels, a plurality of signal lines, a plurality of wave-like connecting lines, and a display medium. The flexible substrate has a plurality of display regions separated from one another and at least one foldable region located among the display regions. The pixels are disposed in the display regions. The signal lines are disposed on the flexible substrate and electrically connected to the pixels. The wave-like connecting lines are distributed in and across the foldable region. Each of the wave-like connecting lines is electrically connected to two of the signal lines adjacent to the wave-like connecting line. Each of the wave-like connecting lines across the foldable region has a wave-like pattern. The display medium is disposed on the flexible substrate to cover at least the display regions.

An input matching parallel inductor 114 which utilizes a spiral inductor, and an input matching parallel capacitor 115 which utilizes an MIM capacitor, both being constituting elements of an input matching circuit portion 125, form an input matching parallel capacitor 115 inside an input matching circuit via-hole 121 being formed by applying a method of surface via-hole to the front surface of a GaAs substrate 124. A choke inductor 119 which utilizes a spiral inductor, and a bypass capacitor 120 which utilizes an MIM capacitor, both being constituting elements of a drain voltage feeding circuit 107, form a bypass capacitor 120 inside a drain voltage feeding circuit via-hole 123 formed by applying a method of surface via-hole to the front surface of the GaAs substrate 124. A drain voltage terminal 136 is extended by a drawing wire 135 from between the spiral inductor and the drain voltage feeding circuit via-hole 123.

An automated design for manufacturability platform which provides integrated physical verification and manufacturing enhancement operations. The platform uses an efficient data structure capable of handling and manipulating both layout circuit and geometry characteristics, which permits a wide range of operations such as timing analysis, design-rule checking and optical proximity corrections on a single platform. This feature eliminates the need to translate layout representations between various tools without the requirement of using a common database. Moreover, the platform's common user interface enables encapsulated information exchange between the design and the manufacturing teams, permiting early consideration of manufacturing distortion or enhancement impact on circuit performance.

An interconnection structure for coupling conductive layers of a circuit board includes a pin configured to be press-fitted in an aperture traversing the circuit board, to electrically couple the conductive traces. The pin may be placed in a predrilled aperture, or driven into the circuit board, forming the aperture thereby. The pin may also be configured as a punch, removing a plug of material as it is driven therethrough. The pin may comprise a capacitive or resistive region configured to capacitively or resistively couple the first and second traces. The pin may be configured such that capacitive or resistive values are selectable according to a depth to which the pin is positioned in the aperture. The pin may serve as an offset post for mounting the circuit board to a chassis. In such a case, the pin may be provided with a longitudinal aperture configured to receive a threaded screw.

A manufacturing method of a packaging structure of electronic components includes the steps of: providing a substrate including a plurality of electronic components; covering the electronic components disposed on the substrate with a molding body; forming a plurality of pre-cut grooves on the molding body so as to define a plurality of molding units on the molding body; forming an electromagnet barrier layer covering the molding units on the molding units and the pre-cut grooves; and cutting along at least one of the pre-cut grooves deeply down to break the substrate so as to form separately a plurality of packaging structures of the electronic components.

A disclosed overcurrent protection and output short-circuit protection circuit has a proportional output current generation unit and a first current voltage conversion unit provided in series between a first power supply terminal and an output terminal. Furthermore, the overcurrent protection and output short-circuit protection circuit has a control unit that operates based on a difference between a voltage generated at the first current voltage conversion unit and that generated at a second current voltage conversion unit provided between the first power supply terminal and a second power supply terminal. A current flowing to the second current voltage conversion unit is changed by one or more switching elements in a stepwise manner based on the output voltages of the output transistor when supplying the current, thereby changing the voltages generated at both ends of the second current voltage conversion unit.

An electronic ballast for a discharge lamp has a compact arrangement of electric parts. The ballast includes an AC-DC converter and an inverter giving a high frequency output voltage for operating the lamp. The inverter includes switching elements, a control circuit, and an output transformer for connection with the lamp. A single circuit board mounts the electric parts forming the converter and the inverter. The circuit board is accommodated within a tubular casing together with a dielectric sheet which is provided for insulating the circuit board as well as the electric parts from the casing. The output transformer is mounted on a top surface of the circuit board together with some of the other electric parts. The ballast includes chip components forming a detection circuit for lamp condition, and the circuit board mounts the chip components on a bottom surface at a location immediately opposite of the output transformer.

The invention provides a technique that saves rate conversion accompanying complicated calculations and shares an analog filter for anti-aliasing in a sampling device. The sampling device employs an anti-alias filter having a fixed cutoff frequency, an A / D converter and a D / A converter each having a clock signal input, which are capable of varying a sampling frequency, and a PLL circuit capable of varying the frequency of a clock signal; and it sets the sampling frequency not lower than an integral multiple of a signal bandwidth and double the cutoff frequency for sampling.

A modeling system for modeling integrated circuits includes a process variation generator for generating a first statistic distribution of a process parameter; a performance parameter distribution generator for generating a second distribution of a performance parameter; a stress generator for generating a third statistic distribution of the performance parameter under a stress condition; and a circuit simulator for receiving data randomly generated based on the first, the second and the third distributions and for generating a statistic distribution of a target performance parameter.

In optimizing a design of an integrated circuit, an iteration of a logic optimization process is performed that at least partially optimizes a circuit design such that there is slack remaining in one or more combinational logic paths in the circuit design following the iteration. A clock latency scheduling process is performed that respectively distributes the remaining slack of one or more respective combinational logic paths in the circuit design across respective registers in the circuit design. Another iteration of the logic optimization process is performed that uses at least a portion of the distributed slack to further optimize the circuit design.

Methods and apparatus for timing recovery phase locked loops. One embodiment provides a phase detectors for generating phase difference signals on the basis of a received feedback signal and an input clock signal and an input data signal, respectively. A digital control unit is adapted to generate a control signal depending on the first and second phase difference signals A digitally controlled oscillator generates an output clock signal depending on the control signal. A feedback unit feeds the output clock signal to an input of the first phase detector as the feedback signal. And a data acquisition unit receives the data signal and the output clock signal of the digitally controlled oscillator to provide a data output signal synchronized to the output clock signal.

A pipeline ADC (Analog to Digital Converter) unit is provided that has a first and a second multi-stage portion. The first multi-stage portion has a first plurality of converter stages for converting a first analog signal to a first digital signal having a first digital resolution. The second portion has a second plurality of converter stages to convert a second analog signal to a second digital signal having a second digital resolution. The second plurality includes the first plurality. The pipeline ADC unit selectively uses either the first plurality of stages alone, or the second plurality. The pipeline ADC unit may be used in a WLAN (Wireless Local Area Network) communication device.

An RF coil apparatus suitable for a high magnetic field MRI apparatus includes a plurality of subcoils arranged substantially in a cylindrical form. Each subcoil includes a first conductor part and a second conductor part. The second conductor part is disposed on the inside of a cylinder, i.e., on the test subject side. This coil apparatus includes a conduction part for attaining conduction among the subcoils, and a conduction control part for controlling a conduction state between the first conductor part and the second conductor part, conducting connection to a transmission and reception part which conducts signal transmission and reception with a subcoil, and changing over electric capacitance of the subcoil according to whether to receive or transmit. Function changeover between the multi-channel mode and the one-channel mode is accomplished by conducting connection changeover and electric capacitance changeover.

In a power supply circuit, a first power-supply voltage supplied to a laser driving circuit for driving a short-wavelength semiconductor laser of an optical pickup is made higher than a second power-supply voltage supplied to circuits except the laser driving circuit, for example, a reproducing system, a servo system and a recording system. Thus, the power consumption in a device for driving a short-wavelength semiconductor laser such as an InGaN-based semiconductor laser is reduced.

This document describes a wireless sensor comprising a MEMS resonator and an antenna directly matched thereto. Also a method of reading the wireless sensor is described. The method comprises illuminating the wireless sensor with electromagnetic energy at a first and second frequencies and receiving an intermodulation signal emitted by the wireless sensor in response to said electromagnetic energy at the first and second frequencies.

The invention provides a circuit of a shifting register, and a gate drive circuit, a display device comprising the same, wherein the circuit of the shifting register comprises a plurality of shifting registers, a first switch circuit, and a second switch circuit, wherein the shifting registers are electrically coupled in a cascade mode and are used for outputting a plurality of scanning signals; the first switch circuit is used for transmitting the scanning signal outputted by each shifting register along the forward direction through the control of a first triggering signal; the second switch circuit is used for transmitting the scanning signal outputted by each shifting register along the reverse direction through the control of a second triggering signal; the first triggering signal and the second triggering signal are reverse on phase. By adopting the circuit of the shifting register, and the gate drive circuit, the display device comprising the same, the circuit scale of the circuit of the shifting register is simplified, the use of a transistor is reduced, the energy consumption of the circuit of the shifting register is reduced, and the dual-direction scanning switching function is realized for meeting a relatively large quantity of market demands.

An integrated electronic power control unit of an environmentally-friendly vehicle that may reduce costs and enhance structure and space utilization by integrally configuring at least two or more electronic power control units (EPCUs) disposed within the environmentally-friendly vehicle. The integrated electronic power control unit (EPCU) includes a plurality of EPCUs such as a motor control unit (MCU), a low voltage DC-DC converter (LDC), or a hybrid control unit (HCU), wherein at least one or more components of the plurality of EPCUs are integrated. In addition, the integrated electronic power control unit includes a hardware failure management unit (HFM) that is configured to detect and manage a failure of hardware including the at least one or more integrated components.

An improved circuit for a delta-sigma digital-to-analog converter comprises integrating operational amplifier, sampling capacitors, integrating capacitor, and a voltage divider consisting of a plurality of sampling capacitors. Three trigger signals of different phases are designed to control three sets of switches, a first trigger signal only turns on and off a first set of switches, so as to charge the plurality of sampling capacitors, a second trigger signal only turns on and off a second set of switches, so as to enable the charge on one of the sampling capacitor and the charge on the integrating capacitor to be averaged, a third trigger signal only turns on and off a third set of switches, to enable the plurality of sampling capacitors to be discharged.

The invention provides a dressing system for a wound comprising an absorbent pad; at least one sensor for detecting wound or dressing data, wherein the at least one sensor is a moisture sensor; a flexible electronic circuit communicable with the sensor; a backing film adapted to cooperate with the absorbent pad, wherein the electronic circuit and the at least one sensor is printed directly on the backing film; and a communications module adapted to communicate the wound data from the electronic circuit to a user or clinician. The invention provides a simple to use disposable dressing wound system that is effective in providing dressing wound data that provides an indicator of the status of the wound as well as information that the dressing wound system needs to be replaced.

A gray scale voltage generating circuit includes a first resistor ladder circuit, connected between a high voltage power supply terminal and a low voltage power supply terminal and having nodes for outputting respective reference voltages, a second resistor ladder circuit, connected between the high voltage power supply terminal and the low voltage power supply terminal, and plural voltage follower circuits, connected between the respective nodes of the second resistor ladder circuit and the respective nodes of the first resistor ladder circuit with first resistor provided between the n / 2'th node voltage and the high voltage power supply terminal and a second resistor provided between the n / 2+1'th node voltage and the low voltage power supply terminal.

Macroblock placement for an integrated circuit register-transfer level design is enhanced by tagging blocks having a set of functions as usage element definitions that have a minimum input signal width, such as tags added to a netlist of the design. Tagged blocks aid preferred and regular placement of library cells that are morphed to adapt for reduced congestion and improved utilization.