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367 results about "Ic manufacturing" patented technology

System and method for lithography process monitoring and control

In one aspect, the present invention is a technique of, and a system and sensor for measuring, inspecting, characterizing and / or evaluating optical lithographic equipment, methods, and / or materials used therewith, for example, photomasks. In one embodiment, the system, sensor and technique measures, collects and / or detects an aerial image produced or generated by the interaction between the photomask and lithographic equipment. An image sensor unit may measure, collect, sense and / or detect the aerial image in situ—that is, the aerial image at the wafer plane produced, in part, by a product-type photomask (i.e., a wafer having integrated circuits formed during the integrated circuit fabrication process) and / or by associated lithographic equipment used, or to be used, to manufacture of integrated circuits. In this way, the aerial image used, generated or produced to measure, inspect, characterize and / or evaluate the photomask is the same aerial image used, generated or produced during wafer exposure in integrated circuit manufacturing. In another embodiment, the system, sensor and technique characterizes and / or evaluates the performance of the optical lithographic equipment, for example, the optical sub-system of such equipment. In this regard, in one embodiment, an image sensor unit measures, collects, senses and / or detects the aerial image produced or generated by the interaction between lithographic equipment and a photomask having a known, predetermined or fixed pattern (i.e., test mask). In this way, the system, sensor and technique collects, senses and / or detects the aerial image produced or generated by the test mask—lithographic equipment in order to inspect, evaluate and / or characterize the performance of the lithographic equipment.
Owner:ASML NETHERLANDS BV

System and method for placement of dummy metal fills while preserving device matching and/or limiting capacitance increase

Systems and methods for placement of dummy metal fills while preventing disturbance of device matching and optionally limiting capacitance increase are disclosed. A computer-automated method for locating dummy fills in an integrated circuit fabrication process generally comprises receiving an input layout of the integrated circuit and specification of device matching for the integrated circuit and locating the dummy fills in the integrated circuit according to dummy rules while preserving device matching. Locating the dummy fills may include locating the dummy fills along the at least one axis of symmetry where device matching is along an axis of symmetry and locating the dummy fills so as to preserve matching of the repeated elements where device matching is repeated matched elements. The method may also include designating at least one net of the integrated circuit as a critical net, the critical nets being only a subset of all nets of the integrated circuit, identifying metal conductors corresponding to each designated critical net from the layout file, and delineating a net blocking exclusion zone extending a distance of a minimum net blocking distance (NBD) from the metal conductor for each metal conductor identified, wherein the step of locating locates the dummy fills outside of the net blocking exclusion zone.
Owner:MAGMA DESIGN AUTOMATION

Clock generating circuit for radio frequency identification (RFID) tag and calibrating method of clock generating circuit

ActiveCN102682330ACompensation for discretenessOscillation frequency consistentElectric pulse generator circuitsSensing record carriersComputer hardwarePower-on reset
The invention discloses a clock generating circuit for a radio frequency identification (RFID) tag and the calibrating method of the clock generating circuit and relates to the technical field of RFID. The clock generating circuit provided by the invention comprises a numerical control tuned oscillator, a controller, a counter and a digital baseband processing circuit. A demodulation signal Rx output by tag radio frequency is input to the tag digital baseband processing circuit and the controller, and a power-on reset signal Rst output by a reset signal generating circuit arranged at the front end of the tag radio frequency is input to the controller, the counter and the tag digital baseband processing circuit. A calibration-enable signal Calib_en output by the tag digital baseband processing circuit is connected to the input ends of the controller and the counter. The count output Count of the counter is connected to the input end of the controller, and Rst_cnt output by the controller is connected to the input end of the counter. By using the clock generating circuit and the calibrating method thereof, the influences of an integrated circuit manufacturing process, an application environment and temperature on the bit rate precision, the code, the duty ratio and the like of the chip of the RFID tag can be avoided, the power consumption of the chip of the tag can be reduced, and the finished product rate of the chip can be increased.
Owner:BEIJING TONGFANG MICROELECTRONICS

Thinning method of semiconductor chip

ActiveCN101308778ASolving Dimensional Thinning IssuesSolve the situation that is easy to be washed away by pure water, etc.Semiconductor/solid-state device manufacturingIntegrated circuit manufacturingSemiconductor chip
The invention discloses a semiconductor chip thickness reduction method and in particular relates to thickness reduction technique on semiconductor chips, etc., belonging to the integrated circuit manufacturing technical field. The semiconductor chip thickness reduction method is characterized in that semiconductor apparatuses are arranged in lines and rows, with the pictured sides facing downward; the target sides semiconductor apparatuses adhere to a protecting film, developing into a square or a rectangle; a sheet object matching with the semiconductors in area and thickness is arranged at the periphery of the square or the rectangle and is made into a square or a rectangle so that the semiconductor at the middle can be even in bearing stress during the thickness reduction process; the reduction amount is determined and the semiconductors are reduced in thickness through grinding; after the thickness reduction process, post treatment is done to the thinned chips; finally, desirable chips are turned out. The method requires no change to current thickness reduction equipment and fixtures; the thinned chips are the same in thickness and are in consistency with the thickness of the wafer; the yield is high and the thinned chips have no defects and cracks at the brims.
Owner:WUXI ZHONGWEI GAOKE ELECTRONICS +1

Light driven micro-fluid pump

The invention relates to a light driven micro-fluid pump. The light driven micro-fluid pump converts between light energy and mechanical energy. The light driven micro-fluid pump comprises an outlet / inlet layer, a pump cavity layer, a micro-wire grid array drive unit and a substrate in sequence from the bottom to top; the outlet / inlet layer is provided with an inlet and an outlet; the pump cavity layer comprises a pump cavity and a deformable vibrating diaphragm; the micro-wire grid array drive unit comprises a micro-wire grid array of which the period is hundreds of nanometers, the micro-wire grid array is composed of grid ridges and grid valleys, and the micro-wire grid array is a shape memory material azobenzene liquid crystal elastomer. The light driven micro-fluid pump periodically changes the irradiation light type and light intensity and is capable of precisely controlling the periodic change of the pump cavity volume of the micro-fluid pump so as to generate continuous differential flow. The light driven micro-fluid pump has advantages of fast respond speed, high working frequency, small energy consumption, large drive quantity and the like; the light driven micro-fluid pump is capable of precisely controlling the flow rate and capable of being used for the cell separation, micro-feeding of fluid, micro-injection of medicine, micro-chemical analysis and the like fields; the apparatus manufacturing can use an MEMS processing technique compatible with an IC manufacturing technique, and the apparatus manufacturing is suitable for batch production.
Owner:CHANGZHOU UNIV
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