Photo data

Shenzhen Shenchuang Hi-tech Electronics Co., Ltd(SChitec) is a high tech enterprise which specialized in phone accessories production and sales. Our main products include travel chargers, car chargers, USB cables, power banks and other digital products.All products are safe and reliable, with unique styles.products pass certificates like CE,FCC,ROHS,UL,PSE,C-Tick,etc,  If you are interested in, you can contact ceo@schitec.com directly.

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Photo data

Imposition

PCB design is completed because the shape of PCB is too small to meet the production process requirements, or a product is composed of several PCBs, so it is necessary to assemble several small boards into a large board whose area meets the production requirements, or assemble multiple PCBs used by a product to facilitate the production of electrical assembly. The former is similar to the stamp board, which can meet the PCB production process conditions and facilitate the electrical installation of components, and it is very convenient to separate them when using; the latter is to assemble several sets of PCB boards of a product together, so that it is convenient for production, and it is also convenient for a product to be set up, which is clear.

Generation of optical drawing data

PCB production is based on film substrate. In the early stage of making the film base plate, it is necessary to first make the film base plate, and then use the base plate for photography or reproduction. The accuracy of the base drawing must be consistent with that required by the printed board, and compensation for the deviation caused by the production process should be considered. The base drawing can be provided by the customer or produced by the manufacturer, but both parties shall closely cooperate and negotiate to make it meet the user's requirements and meet the production conditions. When the user provides the base drawing, the manufacturer shall inspect and approve the base drawing, and the user can evaluate and approve the original or the first printed board product. The methods of making base map include manual drawing, mapping and CAD drawing. With the development of computer technology, PCB CAD technology has made great progress, and the production technology level of PCB has been rapidly improved in the direction of multi-layer, thin wire, small aperture and high density. The original film plate making technology has been unable to meet the design needs of PCB, so the optical drawing technology has emerged. With the help of the photo plotter, the PCB data file designed by CAD can be directly sent to the computer system of the photo plotter, and the photo plotter can be controlled to draw the graphics directly on the negative film by using the light. Then through developing and fixing to get the film base plate. The film base plate of printed board made by light drawing technology has the advantages of high speed, high precision and good quality, and avoids the possible human error in manual mapping or drawing the base plate, greatly improves the working efficiency and shortens the production cycle of printed board. Using our company's laser photo plotter, in a very short time, we can finish the work that many people can finish in the past for a long time, and the thin wire and high-density plate drawn by it are incomparable to manual operation. According to the different structure of laser photo plotter, it can be divided into plate type, internal drum type and external drum type. Yuzhiguang company's series of photo plotter products are internationally popular external roller type The standard data format used by photo plotter is gerber-rs274 format, which is also the standard data format of PCB design and production industry. The name of Gerber format is quoted from Gerber company, the pioneer of design and production of photo plotter The generation of optical drawing data is to transform the design data generated by CAD software into optical drawing data (mostly Gerber data). After modification and editing by cam system, the optical drawing pre-processing (mosaic, mirror image, etc.) is completed to meet the requirements of PCB production process. Then the processed data is sent to the photo plotter, which is transformed into raster data by raster image data processor of the photo plotter. The raster data is sent to the laser photo plotter by high-power fast compression and reduction algorithm to complete the photo painting.