Our SMT Electronic Board Production Line
SMT LINE
Our pick and place machines and advanced control units offer the highest level of efficiency and precision, ensuring high accuracy and error-free production. We guarantee the traceability of every part with our in-house developed automation software.
The solder paste printing section represents one of the initial and most critical stages in electronic board manufacturing. In this phase, solder paste is meticulously applied to the PCB (Printed Circuit Board). The process begins with the board being automatically fed into the machine via a conveyor, where image processing aligns the stencil and PCB reference points for precise registration. Dual-direction squeegee blades move with tailored pressure and speed to transfer solder paste onto the PCB according to the board’s design.
Under the SPI machine’s oversight, the position, shape,78 and volume of the solder paste are automatically measured. As the quality of this stage directly impacts the success of subsequent component placement and soldering processes, it is subject to continuous monitoring.
Solder Paste PrinterSolder Paste Printer Solder Paste PrinterSolder Paste Printer
The ASM E by DEK is a fully automated solder paste printing machine designed for high-precision application, delivering impeccable accuracy through product-specific stencils. Its robust construction and exceptional repeatability ensure seamless printing and efficiency for both high-volume production and prototype development processes.
3D Solder Paste Inspection 3D Solder Paste Inspection
The device identifies errors in solder paste applied by the printing machine, enabling the separation of defective boards before they enter production.
The Kohyoung 3D SPI machine is a proven control system in the electronics manufacturing industry. Verifying the position, shape, and volume accuracy of solder paste after printing is critical, as faulty printing can lead to irreversible defects in assembled products. This inspection ensures critical errors are addressed at the start of production, not at the end.
In this section, electronic components are automatically placed onto the PCB. The coordinates and placement angles for each component are predefined in the machine’s preloaded production program. To ensure accurate placement despite high speeds, cameras perform real-time verification of each component and the reference points on every board during assembly. A vacuum nozzle picks and places components with high precision into their designated positions.
Pick and Place Machines Pick and Place Machines
Our pick and place (P&P) machines, integral to our electronic board production line, are the industry-leading Fuji NXTR-S and AIMEX IIIc models. Our three P&P machines perform component placement on printed circuit boards with exceptional speed and precision.
Capable of placing up to 120,000 components per hour (CPH), these machines ensure accurate positioning in terms of coordinates, angle, and height. The NXTR-S and AIMEX IIIc models combine high-speed production with superior placement accuracy, guaranteeing consistent quality.
Equipped with Fuji’s advanced technology, these machines enhance efficiency in our electronic board manufacturing processes while delivering results that meet the highest industry standards.
The Reflow oven station is where, following component placement, solder paste or SMT adhesive is melted and solidified under a precise temperature profile to secure components to PCB pads. The greater the number of heating zones in the oven, the more accurate the temperature profile curve becomes. This precision ensures that both components and the PCB are exposed to the required temperatures for the designated duration.
Reflow Oven Reflow Oven
In electronic board manufacturing, the curing oven is pivotal for ensuring quality and product reliability. Our SMT assembly line features Pyramax 100 curing oven, equipped with eight heating zones and one cooling zone. This system enables us to apply optimized temperature profiles for soldering components onto printed circuit boards through stable heating zones. It provides precise temperature control for lead-free and leaded soldering as well as SMT adhesive curing requirements.
The high number of heating zones in SMT curing ovens delivers significant advantages:
Enhanced Temperature Precision: Multiple zones ensure a smoother, controlled temperature ramp-up and ramp-down, minimizing thermal shock risks and protecting components.
Superior Solder Joint Quality: Gradual heating enables optimal solder paste melting, ensuring stronger component adhesion to the board.
Increased Production Speed: Numerous zones maintain ideal temperatures at each stage, facilitating continuous, high-speed production.
Adaptability to Diverse Materials: Various components and PCB types require distinct temperature profiles. More zones allow better customization, preventing uncontrolled heat exposure.
The 3D AOI (Automated Optical Inspection) machine, utilized in SMT production, meticulously examines circuit boards to detect soldering and assembly errors with exceptional precision. Leveraging 3D technology, it assesses component height, alignment, and solder joints with depth perception, enabling more accurate error analysis. This enhances production quality, prevents defective products, and significantly reduces the need for manual inspection.
AOI Machine AOI Machine
The Kohyoung Zenith Alpha is an advanced 3D AOI (Automated Optical Inspection) machine, delivering high-precision optical inspection for SMD production. Its innovative 3D scanning technology meticulously analyzes component position, placement, dimensions, and solder joints with exceptional accuracy. Utilizing multi-angle projectors to enhance depth perception, it detects defects such as solder deficiencies, component misalignment, and cold solder joints that 2D systems may overlook.
Equipped with robust AI-powered algorithms, the Zenith Alpha minimizes false call rates while its rapid data processing ensures seamless quality control on production lines. Its user-friendly interface and easily programmable structure offer operators significant flexibility. By providing real-time monitoring and analysis, it facilitates early defect detection and enhances production efficiency. With Koh Young’s cutting-edge optical technology and precise measurement capabilities, the Zenith Alpha delivers a reliable and efficient quality control solution for our products.
