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164results about How to "Shorten manufacturing time" patented technology

Construction structures and manufacturing processes for integrated circuit wafer probe card assemblies

InactiveUS20050042932A1Increase mechanical complianceReduces assembly manufacturing costElectronic circuit testingElectrical measurement instrument detailsProbe cardManufacturing technology
Several embodiments of integrated circuit probe card assemblies are disclosed, which extend the mechanical compliance of both MEMS and thin-film fabricated probes, such that these types of spring probe structures can be used to test one or more integrated circuits on a semiconductor wafer. Several embodiments of probe card assemblies, which provide tight signal pad pitch compliance and/or enable high levels of parallel testing in commercial wafer probing equipment, are disclosed. In some preferred embodiments, the probe card assembly structures include separable standard components, which reduce assembly manufacturing cost and manufacturing time. These structures and assemblies enable high speed testing in wafer form. The probes also have built in mechanical protection for both the integrated circuits and the MEMS or thin film fabricated spring tips and probe layout structures on substrates. Interleaved spring probe tip designs are defined which allow multiple probe contacts on very small integrated circuit pads. The shapes of probe tips are preferably defined to control the depth of probe tip penetration between a probe spring and a pad or trace on an integrated circuit device. Improved protective coating techniques for spring probes are also disclosed, offering increased reliability and extended useful service lives for probe card assemblies.
Owner:ADVANTEST SINGAPORE PTE LTD

Panchromatic micrometer LED display chip based ona gallium nitride nanopore array/quantum dot composite structure and preparation method thereof

The invention discloses a panchromatic micrometer LED display chip based on a gallium nitride nanopore array/quantum dot composite structure. On the GaN blue-light LED epitaxial layer of a silicon substrate, an array rectangular mesa structure penetrating through a p-type GaN layer and a quantum well active layer to a n-type GaN layer is disposed. Each rectangular mesa structure constitutes one RGB pixel unit. In each rectangular pixel unit, a red-light rectangular sub-pixel region, a green-light rectangular sub-pixel region and a blue-light rectangular sub-pixel region are included. The adjacent sub-pixel regions are isolated by an isolation trench. Each sub-pixel region is provided with a nanopore array structure and is filled with red and green quantum dots. Panchromatic display is realized by quantum dot color conversion. A preparation method of the panchromatic micrometer LED display chip is also disclosed. The panchromatic micrometer LED display chip utilizes a nanopore structureto improve the stability and lifetime of the quantum dots, and utilizes the energy resonance transfer between quantum dots to improve the internal quantum efficiency and color conversion efficiency,and achieve panchromatic display with high resolution, high color gamut, and high contrast.
Owner:NANJING UNIV

Calculus 3D (three Dimensional) constructing method and device

InactiveCN103465475ABreaking the limitations of difficult 3D manufacturingReduce difficultyData processing systemMathematical Calculus
The invention relates to a calculus 3D (three Dimensional) constructing method and device. The calculus 3D constructing method mainly comprises the steps: carrying out unit partitioning on large and complex product moulds into small limited polyhedron units by using a mathematical calculus idea, respectively manufacturing the small limited polyhedron units and storing the small limited polyhedron units in a classifying manner, combining the small limited polyhedron units into a large product by a mechanical arm action executing mechanism under the control of a data processing system, and spraying a hot melting polymer on the surfaces of the small limited polyhedron units in the forming process so as to obtain products integrated into a whole. The calculus 3D constructing device mainly comprises an engine base, the mechanical arm action executing mechanism, a multi-freedom-degree bulb connecting device, a hot melting nozzle device, a manipulator executing end and the data processing system, wherein the machine base and the mechanical arm action executing mechanism commonly form a movement main body which is capable of rotating by 360 DEG, and the mechanical arm action executing mechanism is capable of reciprocating on the machine base horizontally. By adopting the method and the device provided by the invention, the processing and manufacturing time can be greatly shortened, the processing cost is lowered, and the labor intensity of an operator is lightened.
Owner:BEIJING UNIV OF CHEM TECH

Automatic loading and unloading processing center production line

The invention discloses an automatic loading and unloading processing center production line which comprises a loading machine, a processing center and an unloading machine, wherein the loading machine, the processing center and the unloading machine are sequentially transversely arranged side by side; the loading machine comprises a loading lathe bed, a cantilever beam and a sliding base, wherein a labeling head and a bar code printer are arranged on the sliding base; the processing center comprises a processing lathe bed, a portal frame, a sliding table and a machine head; and the unloading machine comprises an unloading rack, a conveying mechanism, an upper dust absorbing mechanism, a lower dust absorbing mechanism and a plurality of supporting pin mechanisms. According to the automatic loading and unloading processing center production line disclosed by the invention, the loading machine, the processing center and the unloading machine are arranged in a matched mode, so that the equipment can automatically and sequentially complete processes of loading, automatic bar code sticking, once milling type drilling and slotting, unloading and the like, can remarkably improve the working efficiency, can save wood processing manufacturing time, and can effectively increase the yield.
Owner:NANXING MACHINERY CO LTD

Cross folded, pressure sealed multi-page paper assembly and methods of making same

A cost effective, pressure-sealed, multi-page paper assembly is configured as a mailer-type of assembly for use as a business form, direct mail piece or other document to distribute information to end-users. The multi-page paper assembly is formed from a single ply or sheet of paper that permits use of such cost-saving technologies as laser printing and imaging of the single ply or sheet. The multi-page paper assembly includes a central transverse line of cross fold perforations and a plurality of lines of fold assist perforations that permit the single ply or sheet to be folded into a desired Z-fold, C-fold, eccentric C-fold, V-fold, double parallel-fold or other folded configuration having a number of inboard panels to serve as pages of the assembly. Deposits of pressure-activated cohesive along one or both surfaces of the single ply or sheet are placed to define those panels to serve as inboard boards and to adhere portions of the ply or sheet when folded. Cohesive deposits can form seals and thereby a secure seal multi-page paper assembly when pressure-sealed to protect contents. Use of low-tack deposits can form unsecured seals for use with direct mail pieces. Removal of stub portions of the paper assembly permits the sealed assembly to be opened in a book-like manner along the sealed cross fold perforations and access provided to the multiple of pages contained therein.
Owner:INFOSEAL
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