Charge for stencil fabrication

Yes, in most cases stencil fabrication is charged as part of the PCB-assemblage process. It is typically included under NRE (Non-Recurring Engineering) cost, especially for Prototype PCB-assemblage and small-batch production.

What is stencil fabrication in PCB assembly

In SMT-assemblage, a stencil is a thin metal sheet (usually stainless steel) used to apply solder paste precisely onto PCB pads before component placement. The stencil is custom-made based on your Gerber data and pad design.

Because each PCB design is unique, a new stencil must be manufactured for each project or design revision.

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Why stencil fabrication is charged

Stencil fabrication is considered a one-time setup cost because it requires materials, laser cutting or etching processes, and engineering preparation.

Even if you only produce a few boards in Prototype PCB-assemblage, the stencil still needs to be created. This is why the cost is not included in per-unit pricing but listed separately as an NRE charge in PCB-assemblage quotations.

Typical stencil cost

The cost of a stencil depends on several factors such as board size, thickness, and precision requirements.

For standard designs, stencil costs typically range from $50 to $150. For larger boards, fine-pitch components, or special requirements (such as step stencils), the cost can be higher.

In grote volumes SMT-assemblage, this cost becomes negligible per unit because it is spread across a large quantity.

When stencil cost may be waived

Some manufacturers may waive stencil fees under certain conditions.

For example, if you move from Prototype PCB-assemblage to mass production with the same supplier, they may reuse the stencil or absorb the cost into the overall pricing.

In turnkey PCB-assemblage projects, some suppliers include stencil cost in the total package price rather than listing it separately.

Promotions or long-term partnerships may also result in free stencil offers.

Can one stencil be reused

Yes, a stencil can often be reused for repeat orders as long as the PCB design remains unchanged.

If there are layout modifications, pad size changes, or component updates, a new stencil will usually be required, resulting in an additional NRE cost.

Proper storage and handling by the manufacturer ensure stencil longevity for future SMT-assemblage runs.

Stencil cost vs alternative methods

For very low-volume builds, some manufacturers may use manual solder paste application instead of a stencil. However, this reduces accuracy and consistency.

Using a stencil ensures better solder quality, fewer defects, and higher efficiency, making it the standard choice in professional PCB-assemblage en PCB Productie processen.

Conclusie

Stencil fabrication is normally a charged, one-time cost in PCB-assemblage, included under NRE fees. It is essential for accurate solder paste application in SMT-assemblage and ensures high-quality production.

While the cost may seem significant for Prototype PCB-assemblage, it becomes minimal in large-scale production. Working with the same supplier for repeat orders can help you reuse stencils and reduce overall costs.

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