45results about How to "Improved thickness distribution" patented technology

On a wafer holding area 50 on the upper surface of a susceptor 22, a wafer W is supported by a wafer support 54 such that a gap with a predetermined distance is formed between the wafer W and a wafer heating surface 52. A projection 58 that decreases the distance of the gap with respect to the wafer W is formed on the wafer heating surface 52. At this time, the heating condition for the wafer W by the susceptor 22 is adjusted by means of the distances of the gaps at the respective portions of the wafer holding area 50. Thus, the uniformity of the planar temperature distribution of the wafer W and that of the thickness distribution of the formed film can be improved.

A sputtering device according to the present invention comprises at least a vacuum container, a substrate holder arranged in the vacuum container, plural sputtering cathodes each of which has a target for sputtering to a substrate installed on the substrate holder, wherein the plural sputtering cathodes are arranged so that center axes of the targets installed on the sputtering cathodes is inclined at specific angle against an axis of the substrate installed on the substrate holder, and a sputtering cathode unit constituted of the plural sputtering cathodes is held to the vacuum container rotatably around the axis of said substrate.

The invention discloses an ACI type two-dimensional perovskite solar cell and a preparation method thereof. The perovskite absorption layer of the solar cell is a mixture of C(NH2)3I, CH3NH3I and PbI2. In the preparation process, CH3NH3Cl is added to serve as an additive. Compared with the conventional two-dimensional perovskite device, the addition of CH3NH3Cl greatly improves the crystallizationquality of the perovskite thin film, increases the grain size, reduces the carrier recombination loss caused by defects at the grain boundary, and prolongs the carrier service life. Meanwhile, effective gradient distribution of different n values is increased, the charge transmission efficiency is improved, the improvement of the photoelectric conversion efficiency of the perovskite battery device is finally directly determined, the series-parallel resistance of the device is improved, and the photoelectric conversion efficiency of 18.48% is finally obtained. The excellent photoelectric properties and device efficiency of the perovskite solar cell are helpful for promoting the commercial application of the perovskite solar cell.

A masking agent is applied as a patterned film 12 to a surface of piezoelectric material 11 to be processed, fluidized by contact with a solvent vapor V and dressed to a domed mask 14 by its surface tension. When the piezoelectric material is dry etched together with the domed mask 14, its surface is processed to a convex profile corresponding to thickness distribution of the domed mask 14. Distribution and shape of the domed mask 14 is controlled by treating the piezoelectric material 11 with an oil repellant 13 so as to limit reflow of the masking agent to a specified region(s). The processed piezoelectric material has a surface profile with a big mass at its center suitable for principal oscillation without spurious oscillation.

A preform for a multi-layered hollow vessel has excellent moldability and productivity and is free from the deterioration of the characteristic properties of the vessel even when a recycled material is filled in large quantities. A molded product is produced by filling a first material and a second material into the cavity of an injection mold in a single molding step including (i) the substep of injecting the first material, (ii) the substep of injecting the first material and the second material at the same time and (iii) the substep of injecting the first material which are carried out continuously in this order.

The invention relates to a method for predicting a copper thickness ratio of a sparse area to a dense area in pattern plating. The method comprises the following steps: (1) determining a current density J adopted for pattern plating; and (2) selecting a sparse area and a dense area to be monitored, if another dense area is distributed on one side, which is back to the selected dense area, of the sparse area, executing a step a, otherwise, executing a step b; a, determining distances between the sparse area and the two dense areas as h1 and h2 respectively, so that a copper thickness ratio of the sparse area to one of the dense areas is Y1=(mxJ-n)xh1+k, a copper thickness ratio of the sparse area to the other dense area is Y2=(mxJ-n)xh2+k, and a final copper thickness ratio is Z=Y1+Y2-1; b, determining a distance between the sparse area and the dense area as h, so that a copper thickness ratio of the sparse area to the dense area is Y=(mxJ-n)xh+k. Through adoption of the method, the copper thickness ratio of the sparse area to each dense area in pattern plating is predicted according to the current density in pattern plating and the distance between the sparse area and each dense area, so that the pattern plating is monitored in an actual production process, and the quality of a product is ensured.

The present disclosure discloses an ultra-low pressure liquid filling forming system for a special-shaped component, including a control system, a supercharger, a driving device, a preforming unit, and a final forming unit. The present disclosure further provides an ultra-low pressure liquid filling forming method for a special-shaped component, including the following steps: S1: making an equal diameter cylindrical coil blank with an overlapping part in a longitudinal direction by using a plate blank; S2: bulging the equal diameter cylindrical coil blank into a variable diameter cylindrical prefabricated coil blank; S3: cutting and welding the overlapping part remaining on the variable diameter cylindrical prefabricated coil blank in the axial direction to obtain a variable diameter prefabricated tube blank; S4: filling liquid and press-forming the variable diameter prefabricated tube blank, so that the variable diameter prefabricated tube blank occurs compressive deformation, thereby forming the special-shaped component.

The invention relates to drainage board and water drainage and storage board forming equipment which comprises a support frame, and an upper roller and a lower roller which are arranged on the support frame in parallel opposite to each other, wherein boss molds which are arranged in a parallel array mode are arranged on a cylindrical surface of the lower roller; a plurality of array grooves are evenly distributed on the upper roller along the cylindrical surface; each groove is parallel to a central axis of the upper roller; and each array groove is matched with each row of boss molds which are arranged in an array mode. The equipment is easy to manufacture and maintain and easy and convenient to operate, and the boss and bottom plate of the drainage board and the water drainage and storage board can be uniform in thickness distribution, so that the consistency of pressure bearing and other physical mechanical properties can be effectively kept, the problems that partial area is broken and then the whole construction quality and service life are reduced due to non-uniform stress are effectively solved, the economic cost is wholly reduced, the service life is prolonged, a guarantee is provided for the quality and service life of the related construction, and the equipment is suitable for popularization and application in related fields of production of drainage boards and water drainage and storage boards.

The invention provides a rolling method for improving the outer layer thickness distribution of a composite plate, which belongs to the technical field of metal plastic processing and molding. The rolling method is a new rolling method of the composite material, according to the metal deformation theory when rolling, each layer thickness equality of the cross section after rolled can be ensured when the equal deformation of metal at the inner and outer layers is ensured, namely, the deformation embedded into the internal of the rolling piece is ensured, simultaneously no serious single bulge occurs. The rolling method is mainly comprises the step of scheduling the entire rolling regulations, the core content is ensuring each pressed value is more than 30%, and ensuring the deformation of each layer is uniform in the transverse direction to achieve the purpose of improving the inner and outer layers thickness uniformity of the composite plate. The rolling method provided by the invention has universal adaptability to the rolling processing of the composite material, and is especially applicable to the processing of the symmetric composite materials.

The invention relates to an extrusion head and to a method, by way of which for example the thickness distribution of hollow bodies can be further improved. To this end, the extrusion head consists of at least one mandrel (1) and a nozzle (2), which mandrel (1) and nozzle (2) may be geometrically rigid and thus not changeable or else deformable in a regionally flexible manner and which form a flow duct (3), wherein the mandrel (1) and the nozzle (2) are positionally changeable in relation to one another, as a result of which the geometry of an outlet gap (s) of the flow duct (3) is changeable during the discharge of a melt, wherein each head part has at least one head section having a constant cross-sectional area in an outlet region (A) of the extrusion head, and wherein at least one head part has at least two head sections (B) and (C); which each have predominantly constant cross-sectional areas within the head section (B), (C), are axially spaced apart and have different cross-sectional areas from one another.

Provided is a partition wall structure for a film forming apparatus and a film forming apparatus, wherein the partition wall structure of the present invention forms at least one film formation region in the chamber of the film forming apparatus. The partition wall structure includes a circumferential regulating portion and a pair of partition walls. The circumferential restricting portion is connected to the partition wall so that the relative position of the circumferential regulating portion and the partition wall is fixed. The inner side surface of the partition wall faces the outer peripheral surface of the film formation roller with a gap therebetween when the partition wall is attached to the chamber. The circumferential direction regulating portion forms a film formation area facing the outer peripheral surface of the film formation roller. The film forming apparatus of the present invention comprises a pair of partition walls fixed to the chamber and disposed on both sides in the widthwise direction of the film formation roller at positions spaced from the film roll by a partition wall. An outer surface facing the radially outer side of the film formation roll and an inner surface facing radially inward of the film formation roll, the mask being mounted on the outer side surface of the partition wall, the inner side surface of the partition wall being located closer to the outer peripheral surface of the film roll and is positioned radially inwardly of the film formation roller.

A method for molding a two-piece blow molded hollow tank by using auxiliary male molds includes the following steps: 1) blanking two parisons; 2) closing mold halves of a mold and a pre-molding template; 3) pre-stretching the molten parisons by using auxiliary male molds in the pre-molding template; 4) performing internal high-pressure blow molding, and pre-molding two housing portions; 5) opening the mold, and withdrawing the pre-molding template; 6) moving in a component built-in mechanism to perform built-in component connection; 7) moving out the component built-in mechanism; 8) closing the mold for the second time and finally blow molding a hollow tank; and 9) opening the mold and taking out the product.