SMT Stencil - Key to PCB Assembly and High Quality Electronic Production

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Overview of SMT Stencil

  • The SMT (surface mounted technology) stencil is one of the main products PCBONLINE provides, and is a key tool for PCB assembly. With it, the solder paste can simply and precisely print onto the circuit board, and your factory can easily achieve massive automatic production.
  • PCBONLINE offers high/medium/low volume of PCB assembly and EMS service, but if you want to assemble by your own, we also provide a good solution - using SMT stencils of best quality to quickly assemble PCB by yourself.

Advantages of SMT Stencil

Why Choose SMT Stencils from PCBONLINE

  • • PCBONLINE adopts the laser cutting method characterized by high precision and easy to demodulate by trapezoidal opening.
  • • Our production is of little influence of objective factors, and accurate cutting is ensured.
  • • The stencil is conducive to the release of solder paste because of the naturally trapezoidal aperture design (the upper hole is 1mil-5mil larger than the lower).
  • • Accurate data - hole size error is about 0.3~0.5mil, and the positioning accuracy is less than 0.12mil.
  • • Our SMT stencils are durable and very thin. We provide stencils 0.1mm, 0.12mm, 0.15mm, and 0.2mm's thick.
  • • We fully consider the mold release of solder paste, width/thickness and area ratio, tin connection, tin, etc., on SMT stencil design.
  • • You can online order framed or frameless SMT stencils from us and get an instant quote.
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SMT Stencil - Manufacturing and Tech Specs


Process of SMT

  • SMT (surface mounted technology) is a series of processes to assemble components onto the bare circuit boards. The multiple phases are: stencil design according to the board > solder paste printing > component placement > reflow soldering > AOI optical inspection > maintenance (if needs) > sub-board.
  • An SMT stencil enables you to print the solder paste onto the board precisely and quickly by machine, and while the solder paste is still in liquid state, place desirable parts onto the solder joints also by machine. Then you get the PCBA and reflow to coagulate the solder paste so that the components are soldered tightly. Then is the AOI optical inspection, an automated visual inspection of printed circuit board to test for catastrophic failure and quality defects. If anything wrong is detected, you fix it. Finally, you cut or separate the boards ready for the final product assembly.
  • PCBONLINE has rich experience in the whole SMT process including but not limited to SMT stencil design and manufacturing. If you order PCB from us but want to assemble the boards by your own, it is suggested that you apply SMT assembly and buy SMT stencils from us. SMT enables fast, precise, and cost-effective assembling, and PCBONLINE, the PCB manufacturer, knows how to design and manufacture your stencils to be best, and we also provide suggestion in PCB assembly for free.

SMT Stencil Types


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