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7325 results about "High volume manufacturing" patented technology

High-volume manufacturing is the same as mass production: fabricating large quantities of goods in short periods of time. Goods that are produced in high volume often have little or no variation. For example, an auto-parts manufacturer might create thousands of units the exact same part to send to automobile factories.

Fabrication of high efficiency, high quality, large area diffractive waveplates and arrays

The objective of the present invention is providing a method for fabricating high quality diffractive waveplates and their arrays that exhibit high diffraction efficiency over large area, the method being capable of inexpensive large volume production. The method uses a polarization converter for converting the polarization of generally non-monochromatic and partially coherent input light beam into a pattern of periodic spatial modulation at the output of said polarization converter. A substrate carrying a photoalignment layer is exposed to said polarization modulation pattern and is coated subsequently with a liquid crystalline material. The high quality diffractive waveplates of the present invention are obtained when the exposure time of said photoalignment layer exceeds by generally an order of magnitude the time period that would be sufficient for producing homogeneous orientation of liquid crystalline materials brought in contact with said photoalignment layer. Compared to holographic techniques, the method is robust with respect to mechanical noises, ambient conditions, and allows inexpensive production via printing while also allowing to double the spatial frequency of optical axis modulation of diffractive waveplates.

Tool wear monitoring system capable of realizing self-learning in numerical control machining state

InactiveCN102073300ACutting Condition MonitoringReal-time monitoring of cutting statusProgramme controlComputer controlData acquisitionEngineering
The invention discloses a tool wear monitoring system capable of realizing self-learning in a numerical control machining state. The structure of the system is that: a tool wear rule learning library stores learned tool wear rules; a data acquisition and judgment module provides a servo drive current digital signal for a data processing module to perform format conversion and store the signal as a monitoring current signal; a characteristic extraction and selection module selects signal characteristics strongly correlated with tool wear; a fitted predicted trend curve module establishes a signal characteristic-tool machining service life relationship curve; a tool wear rule module obtains the learned tool wear rules from the tool wear rule learning library, and substitutes the trend signal characteristics into the learned tool wear rules to obtain a tool wear extent; and a tool wear compensation and tool replacement module makes a tool wear compensation and tool replacement decision according to the tool wear extent, and provides the tool wear compensation and tool replacement decision for a numerical control system interface input module. The system is applied to the condition offluctuating cutting parameters in mass production, and can achieve relatively higher accuracy under the condition of constant cutting parameters.

Low-cost on-line and in-line spectral sensors based on solid-state source and detectors combinations for monitoring lubricants and functional fluids

A series of optical spectral sensors is based on a combination of solid-state sources (illumination) and detectors housed within an integrated package that includes the interfacing optics and acquisition and processing electronics. The focus is on low cost and the fabrication of the sensor is based on techniques that favor mass production. Materials and components are selected to support low-cost, high volume manufacturing of the sensors. Spectral selectivity is provided by the solid-state source(s) thereby eliminating the need for expensive spectral selection components. The spectral response covers the range from the visible (400 nm) to the mid-infrared (25,000 nm/25.0 μm), as defined by the availability of suitable low-cost solid-state source devices. A refractive optical system is employed, primarily in an internal reflection mode, allowing a selection of sample handling tools, including, but not restricted to internal reflectance and transmittance. A secondary channel allowing for light scattering or fluorescence methods is an option. The targeted applications of the sensing devices are for lubricants and functional fluids in the heavy equipment, automotive and transportation industries. A source reference channel is included to provide measurement stability and temperature compensation.

Method of preparing silver nanowire by utilization of hydrothermal method

InactiveCN103084584AImprove processing stabilityLow sensitivity to process parametersNanotechnologyMetal chlorideHigh volume manufacturing
The invention relates to a method of preparing silver nanowire by utilization of a hydrothermal method. The steps including: directly mixing ethylene glycol PVP solution which contains metal chloride with the concentration of 0.01M-2MPVP and the concentration of 1*10M-1*10-2M with ethylene glycol silver nitrate solution with the concentration of 0.01M-1M at normal temperature, stirring the mixed solution to be uniformed mixed, obtaining mixed reaction mother solution; the volume ratio of ethylene glycol silver nitrate solution to ethylene glycol PVP solution is 1:1-10:1; the molar ratio of silver nitrate to the PVP in the mixed reaction mother solution is 1:10-10:1, and the molar ration of silver nitrate to metal chloride is 10:1-104:1; putting the mixed reaction mother solution into an reaction kettle, warming the mixed reaction mother solution to 160 DEG C - 180 DEG C to carry out reduction reaction, the silver salt in the mother solution is restored, and silver nanowire is obtained. The method of preparing silver nanowire by utilization of the hydrothermal method has the advantage of being simple and high-efficient, no need of being preheated when the preliminary reaction is carried out at the normal temperature, easy to control of reaction conditions, and especially applicable to mass production.

Semiconductor device having active element connected to an electrode metal pad via a barrier metal layer and interlayer insulating film

A semiconductor device of the present invention has (1) an active element provided on a semiconductor substrate, (2) an interlayer insulating film formed so as to cover the active element, (3) a pad metal for an electrode pad which is provided on the interlayer insulating film, (4) a barrier metal layer which is provided on the active element with the interlayer insulating film therebetween, so that the pad metal is formed on the barrier metal layer, and (5) an insulating layer having high adherence to the barrier metal layer, the insulating layer being provided between the interlayer insulating film and the barrier metal layer. With this arrangement, the adherence between the barrier metal layer, the insulating film and the interlayer insulating film is surely improved, and even in the case where an external force is applied to the electrode pad upon bonding or after bonding, the barrier metal layer hardly comes off the part thereunder. Therefore, the breakdown of a level difference compensating film, and the exfoliation of the barrier metal layer from the interlayer insulating film can be prevented, while the semiconductor device of the area pad structure featuring lower costs, high quality, and high liability is constantly mass-produced. Besides, the yield of the semiconductor device is surely improved.

Automatic spot welding equipment

The invention relates to automatic spot welding equipment which comprises a stand and a workbench arranged on the stand, wherein the workbench is provided with a battery feed mechanism, a steel band feed mechanism, a transfer mechanism, a welding tab cut-off mechanism, a welding mechanism and a good product blanking mechanism, wherein the battery feed mechanism and the steel band feed mechanism are respectively used for feeding a battery and a steel band connected with a welding tab into a welding station; the transfer mechanism is used for bearing and transferring the battery; the welding tab cut-off mechanism is used for cutting off the welding tab on the steel band; the welding mechanism is used for welding the welding tab to the anode end and the cathode end of the battery; the transfer mechanism is provided with a battery clamping seat used for clamping the battery, and an elastic piece inwards pressing the battery is arranged on the battery clamping seat; and the mechanisms are connected with a master control circuit. In the invention, the structural design of the equipment is reasonable, and the automatic feeding, the welding and the property detecting of the battery and the steel band are realized by adopting electrical control, thus the equipment has the advantages of high feed speed, high welding precision and good welded product quality, improves the quality and the production efficiency of the welded product, reduces the labor intensity of workers, saves the production cost and is particularly suitable for producing batteries welded with welding tabs in batches, thereby improving market competitive force of enterprises.
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