5results about How to "Reduce deformation difference" patented technology

Embodiments of the present disclosure provide a redistribution layer structure. The redistribution layer structure includes a first metal layer, a first dielectric layer disposed on the first metal layer, a second metal layer disposed on the first dielectric layer, and a second dielectric layer disposed on the second metal layer. A coefficient of thermal expansion of the first dielectric layer is less than a coefficient of thermal expansion of the second dielectric layer.

The invention relates to the technical field of charged particle beam control, and discloses an electrostatic deflector for a focused ion beam and an assembly process thereof, the electrostatic deflector comprises an electrode assembly, a mounting flange, an insulation structure and a positioning structure; an upper electrode and a lower electrode of the electrode assembly are correspondingly arranged; part of the upper electrode is embedded into the mounting flange; the insulating structure is arranged on one side, far away from the upper electrode, of the mounting flange, and part of the lower electrode is embedded into the insulating structure; the positioning structure sleeves the lower electrode; the thermal expansion coefficient of the electrode assembly is A, the thermal expansion coefficient of the insulation structure is B, and 1 < = A / B < = 1.5. The proportional relation between the thermal expansion coefficients of the electrode assembly and the insulation structure is limited, the thermal expansion coefficients of the electrode assembly and the insulation structure are matched, the deformation quantity difference of the electrode assembly and the insulation structure under the extreme working condition is reduced, thermal stress cracking is avoided, and the assembly precision and structural integrity of the electrode assembly and the insulation structure are maintained; the electric field is distributed according to design, and distortion is avoided.

The present application provides a current collector, electrode plate, cell, battery, device, manufacturing method, and apparatus. The current collector includes a conductive layer and a support layer, wherein the conducive layer is provided on a surface of the support layer, and the support layer includes an insulating base and a support structure embedded in the insulating base to enhance strength of the support layer, which not only increases an overall strength of the current collector and can improve the problem of tape breakage during processing, but also allows strength of the support layer to be close to strength of the conductive layer, narrowing the gap in structural strength between the support layer and the conductive layer, and reducing the difference in deformation between the conductive layer and the support layer during processing, so that it is conducive to improving processing performance of the current collector.

The invention relates to the technical field of concrete, and particularly discloses concrete for a C50 prestressed fabricated box girder and a preparation method of the concrete. The concrete for the C50 prestressed fabricated box girder is prepared from the following raw materials in parts by weight: 400 parts of cement; 150 to 160 parts of water; 100 parts of mineral powder; 30 parts of fly ash; 600 to 700 parts of natural sand; 100 to 150 parts of stone chips; 500 to 600 parts of limestone; 400 to 500 parts of natural river stone; 3-4 parts of a composite water reducing agent; 7-8 parts of other additives; the composite water reducing agent is an esterification product of graphene oxide and PCE, and the other additives comprise a water-retaining agent and an air entraining agent; the preparation method comprises the following steps: mixing the raw materials, and uniformly stirring to obtain the concrete for the C50 prestressed fabricated box girder. The concrete provided by the invention has the advantages of excellent anti-pressure ability and good fluidity.