51results about How to "Reduce design margin" patented technology

An organic electro-luminescence device is provided. First and second substrates are arranged spaced apart from each other by a predetermined distance and sub-pixels are defined in the substrates. An array element has at least one thin film transistor (TFT) formed on an inner surface of the first substrate in sub-pixel unit. A conductive spacer is electrically connected to a drive TFT of the array element. A first electrode for an organic electro-luminescence diode is disposed on an inner surface of the second substrate. An organic electro-luminescence layer and a second electrode for the organic electro-luminescence diode are sequentially formed on the first electrode in sub-pixel unit. The first substrate and the second substrate are misaligned by a predetermined position and attached to each other, such that the conductive spacer is in contact with a conductive spacer contact region provided on the second electrode.

First several possible working points are stored with different mappings to available modules. Each of these working points involves different trade-offs for important criteria related to performance and costs. At the design stage, these trade-off points for the criteria are not calibrated to the actual run-time conditions. Subsequently, based on actual values of the leakage criteria caused by temperature variations and/or ageing at given run-time conditions for (a subset of) the working points, it is possible to calibrate the trade-off curves and use a run-time controller to select the most suited working points afterward for an actual circuit. These active working points are selected to just meet the necessary system requirements on performance, while minimizing any of the important cost parameters.

A semiconductor device includes a semiconductor substrate; a diffusion region which is formed in the semiconductor substrate and serves as a region for the formation of a MIS transistor; an element isolation region surrounding the diffusion region; at least one gate conductor film which is formed across the diffusion region and the element isolation region, includes a gate electrode part located on the diffusion region and a gate interconnect part located on the element isolation region, and has a constant dimension in the gate length direction; and an interlayer insulating film covering the gate electrode. The semiconductor device further includes a gate contact which passes through the interlayer insulating film, is connected to the gate interconnect part, and has the dimension in the gate length direction larger than the gate interconnect part.

Disclosed is an FCM fuel effective multigroup cross section acquiring method. The FCM fuel effective multigroup cross section acquiring method comprises, in a resonant energy section and based on a superfine group method, solving a TRISO (tristructure isotropic) particle and matrix material containing one-dimensional sphere model to obtain superfine group defect factors; through the superfine group defect factors, correcting the superfine group cross section of all nuclides to homogenize particles and matrix; through Dancoff factor equivalence, acquiring the equivalent one-dimensional rod model of every fuel rod of an FCM fuel, solving the superfine group slowing-down equation of the one-dimensional rod models to acquire the effective self-shielding cross section of the resonant energy section; in a heat energy section, through penetration probability and collision probability equivalence, acquiring multigroup defect factors, correcting the multigroup cross sections of all the nuclidesthrough the multigroup defect factors to homogenize fuel and matrix and to acquire the effective multigroup cross sections of the heat energy section. The FCM fuel effective multigroup cross sectionacquiring method can help effectively process the dual heterogenous effects of the FCM fuel to acquire a precise effective self-screening cross section.

A nuclear power plant and an operation method of the nuclear power plant, which can uprate plant power without greatly modifying the construction of plant equipment, while keeping a core's pressure loss characteristic, a safety margin, and a design margin in the transient state substantially the same as those before the power uprate. Thermal power in a second operation cycle of a nuclear reactor is uprated from thermal power in a first operation cycle preceding the second operation cycle at least one operation cycle. A proportion of steam extracted from a steam system and introduced to a feedwater heater, which is in particular extracted from an intermediate point and an outlet of a high pressure turbine, with respect to a flow rate of main steam is reduced in the second operation cycle from that in the first operation cycle such that temperature of feedwater discharged from the feedwater heater lowers in the range of 1° C. to 40° C. in the second operation cycle.

The invention discloses a DC bus short-circuit detection method and device and a detection circuit. The method comprises the steps of detecting a bus voltage value through a strong-current voltage detection circuit before a strong-current pre-charge circuit is started; and judging, according to the detected bus voltage value, whether the strong-current pre-charge circuit is normally started, so asto detect and judge whether the bus is short-circuited. According to the invention, the problem that in the prior art, if a short-circuit condition occurs during power-up of the strong-current circuit, circuit components may be destroyed is solved, and the circuit safety is improved.

The invention relates to a heat transfer technology and provides a shell-and-tube heat exchanger and a method for machining plate holes in the shell-and-tube heat exchanger. According to the technology, heat exchange tubes are distributed in a radial topological mode in cooperation with circular-ring-shaped and disk-shaped baffle plates which are arranged alternately, so that shell-pass fluid uniformly flows through all the heat exchange tubes in the radial direction, and the utilization rate of the heat exchange tubes is increased. The shell-and-tube heat exchanger mainly comprises a barrel body, tube plates, tube boxes, the heat exchange tubes and the baffle plates. The baffle plates comprise the circular-ring-shaped baffle plates and the disk-shaped baffle plates, the circular-ring-shaped baffle plates and the disk-shaped baffle plates are arranged alternately, and the total number of the baffle plates is an odd number. The heat exchange tubes are arranged on concentric circles with different diameters with the symmetrical axis of the heat exchanger as the center and are distributed evenly in the circumferential direction. The spacing between the heat exchange tubes is not a definite value, and the minimum spacing is 1.25 times larger than or equal to the outer diameter of each heat exchange tube.

The invention provides a tandem type multi-terminal direct-current power transmission system and a loss compensation method thereof. The system comprises a first converter station unit group, a second converter station unit group, and a controller. The controller is capable of controlling one converter station unit among the at least one first converter station unit and a plurality of second converter station units to work as a current control terminal so as to maintain the constant state of the direct current, obtaining information including direct-current voltage values of the at least one first converter station unit and the plurality of second converter station units and the current value of a high-voltage direct-current polar line, and adjusting the direct voltage of at least one non-constant current terminal converter station unit among the at least one first converter station unit and the plurality of second converter station units based on the information so as to compensate the power loss of the high-voltage direct-current polar line conveniently. With the system and the method, the power loss of the high-voltage direct-current polar line can be compensated and the direct voltage of the current setting terminal can be decreased.

An electric energy conversion and switching system and method applied to a thermal power plant, through which the frequency and/or voltage of at least one connection terminal can be adjusted, and the electric energy can be controlled to flow between plant buses of different frequencies, or both Controlling electric energy at different frequencies can also control electric energy flowing between plant buses of the same frequency, reduce or even eliminate throttling loss, give full play to the performance of variable frequency generator sets, improve the overall efficiency of the system, thereby reducing energy consumption and creating greater economy At the same time, it improves the method of starting and switching the electric motor of the factory auxiliary machine, and improves the flexibility of the overall operation mode of the system.

In order to provide a nonvolatile semiconductor storage device designed to take off such existing restraint on the degree of freedom of device design as needed for the purpose of securing design margin, thus realizing a ferroelectric, nonvolatile storage device of high integration density, there is disclosed a capacitor using a ferroelectric thin film is provided, so that the apparent coercive electric field value in the operational guaranteed margin temperature of the nonvolatile semiconductor storage device when regarded as the voltage applied to the capacitor remains within the range of design margin of the nonvolatile semiconductor storage device at the coercive electric field value at the specified temperature, in which a metal oxide of a layer structure having the ferroelectric-to-normal dielectric phase transition point of 800° C. or higher may be used for the ferroelectric thin film.

The invention relates to a post-processing method of a mask plate and the mask plate. The post-processing method of the mask plate comprises the following steps that the mask plate is provided, wherein the surface of the mask plate is provided with a convex portion; and at least one part of the convex portion of the mask plate is subjected to electrolytic treatment. By means of the post-processingmethod of the mask plate, the redundant convex portion located on the surface of the mask plate can be effectively removed or thinned. The mask plate is obtained by adopting the post-processing method. By reducing at least one part of the convex portion on the side wall face of an upper opening of the mask plate, blocked evaporation sources can be reduced, the evaporation effective area can be increased, the design margin can be reduced, the opening rate is increased, and high PPI product application is facilitated. In addition, burrs and corner affecting effects can be reduced.

The present invention provides a method for manufacturing a semiconductor device capable of avoiding reduction of design margin caused for shape collapsing of an end portion of a slushing compound pattern when a photoresist is taken as a mask. The method of manufacturing a semiconductor device, includes the steps of: providing a semiconductor wafer (10), forming a photoresist film (31) on a main surface of the semiconductor wafer, forming a first mask pattern and a second mask pattern on the photoresist film (31), selectively removing portions of the photoresist film (31) according to the first and second mask patterns, to respectively form a first opening and a second opening in the photoresist film (31), a position of the second opening differing from that of the first opening, and performing ion implantation of an impurity into the semiconductor wafer (10), using the photoresist film (31) having the first and second openings formed therein as a mask (31).

The invention relates to a reusable ground recovery platform for a carrier rocket. The reusable ground recovery platform comprises a movable chassis, a capturing device and a recovery buffer device, the mobile chassis comprises a chassis framework, omni-directional driving wheels and a chassis control system, the at least three sets of capturing devices are arranged in a nonlinear mode, each capturing device comprises a recycling embracing arm, a first telescopic power piece, a capturing clamping table and a capturing control system, and the recycling buffering device comprises an oil gas buffer and a buffering energy storage control system. And the oil gas buffer is mounted in the recovery holding arm and is controlled by the buffer energy storage control system. The soft landing method has the following predictable technical effects that soft landing of the reusable carrier rocket can be achieved, a landing buffer system does not need to be installed on the reusable carrier rocket, the invalid load when the rocket takes off is reduced, and the complexity and cost of a rocket system are reduced.

The invention relates to a post-processing method of mask plates and the mask plates. The post-processing method of the mask plate comprises the following steps that the mask plates are provided, andthe surfaces of the mask plates are provided with raised parts; and at least a part of the raised parts are subjected to chemical grinding treatment. The post-processing method of the mask plates caneffectively remove or thin unanticipated and spare raised parts on the mask surfaces. The mask plates are manufactured and processed by the post-processing method of the mask plates, by reducing at least a part of the raised parts located on the side wall faces of the upper openings of the mask plates, the occlusion on evaporation source can be reduced, the effective area of evaporation can be increased, the reduction of the design margin is facilitated, the aperture opening ratio is increased, and the application of high PPI products is facilitated. In addition, burr and corner influence effects are further reduced.

The invention relates to a thermal protection system optimization design method and module based on an agent model, and the method comprises the steps: carrying out the finite element analysis on thebasis of a small sample, carrying out the fitting of a response surface model, carrying out the large optimization analysis on the response surface model, greatly reducing the calculation amount, andimproving the efficiency. Meanwhile, a linear constant differential equation set of the thermal protection analysis model is solved by adopting a time integration method, so that the resolving time issaved; According to the invention, geometric dimensions are also considered; A thermal analysis model is established under the influence of a plurality of optimization variables of the density, the specific heat capacity, the heat conductivity and the surface radiance of the thermal protection system on thermal protection, so that the thermal protection system optimization design has higher precision, and a more scientific and accurate basis is provided for the thermal protection system design of the hypersonic flight vehicle; In addition, the method effectively reduces the design allowance of the thermal protection system, reduces the weight of the thermal protection system and reduces the power consumption of the aircraft.

The invention provides a package method of an integrated power supply system package element. The method includes the following steps that a carrier is provided; a re-wiring layer is formed on the carrier; a columnar metal lead is formed on the re-wiring layer; an active module and a passive module of a power supply system bare core are welded to the re-wiring layer; the active module, the passive module and the columnar metal lead are packaged and formed on the re-wiring layer, and redundant packaging and forming materials for covering the active module, the passive module and the columnar metal lead are removed through grinding; a base solder protruding block connected with the columnar metal lead is formed, and the carrier is removed; a power consumption system bare core is welded to the re-wiring layer, and then the power consumption system bare core is packaged and fixed to the re-wiring layer through bottom filling. By means of the three-dimensional chip stacking technology, a power supply system is directly integrated on the lower portion of the power consumption system bare core, power transmission efficiency is improved, and the number of different usable voltage rails is increased.

The invention relates to a novel system and a method for electric energy conversion and motor switching in a thermal power plant. The method has the advantages that the frequency and/or voltage of at least one connecting end can be adjusted by an electric energy converter, and the electric energy is controlled to flow between auxiliary buses of different frequency, or the electric energy is controlled to flow between the auxiliary buses of the same frequency and different frequency, so that the throttling loss is decreased and even eliminated, the property of a variable-frequency power generator is fully played, and the efficiency of whole system is improved, thereby decreasing the energy consumption, and creating larger economic benefit; the electric connecting relationship of the electric energy converter is increased, more motor starting and switching methods of the auxiliary units with more variety are improved and realized, and the flexibility in running type of the whole system is improved.