PCB Prototype the Easy Way

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SMT stencil and Laser Stencil

SMD stencil (Solder paste stencil) is necessary for Surface Mount Assembly.

Usage

Squeegee solder paste through the stencil, the stencil ensures the solder paste is the right amount on the right position. Then you can place surface mount components on solder paste and put it into a reflow oven.

SMD stencil-1.jpgSMD stencil-2.jpg

Stencil Type

The stencil is a kind of bare stainless steel sheet. It could be in a frame or without a frame. The framework is for automated stencil machines. Non-framework is for hand solder. Usually, the framework is heavier and bigger than non-framework. So the framework is more expensive to ship and might be charged for dimensional weight shipping.

SMD stencil-3.jpgSMD stencil-4.jpg

Existing Fiducials

Fiducials are positioning points for automated stencil machines. The diameter of the fiducials is usually 1mm. We offered three options: none, half lasered and lasered through. Half lasered is a sunk bump, lasered through is a through-hole. Half lasered is for automated stencil machines. Lasered through is for hand solder or semi-automated stencil machine. Please note that if you choose half lasered or lasered through, but there are no fiducials inside, we’ll ignore this option.

Electropolishing

Electropolishing (also known as electrochemical deburring) will remove small burrs, improve the surface quality and provide smooth inside walls for better paste release. This treatment is mainly for IC lead width less than 0.5mm and BGA chips.

Check PCBWay stencil capabilities in the following table:

FeatureCapability
Stencil typeFramework,Non-framework
Size370*470mm-500*1400mm
Thickness0.1-0.2mm
Existing fiducialsHalf lasered,lasered through
ElectropolishingYes

More information check here:

Stencil Instant Quote

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