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Some measures and packaging types in SMT processing
PCBA Tech
Some measures and packaging types in SMT processing

Some measures and packaging types in SMT processing

2021-11-09
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Author:Downs

First: In SMT processing, a total quality (TQC) organization network is established within the enterprise to provide timely and accurate quality feedback. The best quality of personnel is selected as the quality inspector of the production line, and the administration is still under the management of the quality department, so as to avoid the interference of other factors on the quality judgment work.

Second: After the components in SMT processing or the parts processed by outsourcing are sent to the factory, they need to undergo random inspection (or full inspection) by the inspector before entering the warehouse. If the pass rate is found to be less than the national standard, the product should be returned, and the inspection result should be written in writing Record the record.

Third: SMT processing ensures the accuracy of inspection and maintenance equipment. Product inspection and maintenance are carried out through necessary equipment and instruments, such as multimeters,

pcb board

anti-static wrists, soldering irons, ICT, and so on. Therefore, the quality of the instrument itself will directly affect the production quality. It is necessary to send inspection and measurement in time according to regulations to ensure the reliability of the instrument.

Fourth: The Quality Department should formulate necessary quality-related rules and regulations and the department's work responsibility system. Regulations are used to restrict man-made quality accidents that can be avoided, rewards and penalties are clear, economic means are used to participate in quality assessment, and monthly quality awards are set up within the company.

Three types of packaging that SMT processing needs to know

SMT processed strips (shipping tubes)-the main component container: the strips are made of transparent or translucent polyethylene (PVC) material, extruded into an applicable standard shape that meets current industry standards. The strip size provides proper component positioning and orientation for industry-standard automatic assembly equipment. The strips are packaged and transported in a combination of the number of individual strips.

SMT processed coils-main component container: typical coil structures are designed to meet modern industry standards. There are two generally accepted standards for covering tape and reel packaging structures.

The packaging and transportation of pallets is a combination of single pallets, which are then stacked and bundled together to have a certain degree of rigidity. An empty cover tray is placed on top of the installed components and stacked trays.

SMT processed trays-the main component container: the tray is made of carbon powder or fiber materials, which are selected based on the highest temperature rate of the special tray. Trays designed for components that require exposure to high temperatures (moisture-sensitive components) have a temperature resistance of typically 150°C or higher. The tray is cast into a rectangular standard shape and contains a uniform matrix of cavities. The recesses hold the components and provide protection for the components during transportation and handling. The spacing provides accurate component locations for standard industrial automated assembly equipment used for placement in the circuit board assembly process.