SMT pcb stencil design guideline

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SMT PCB — CAD Data

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Stretching of PCB

Correcting this Effect by Fiducial Tolerance

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Deflection of PCB— Max 1% Diagonal

Overcome this Effect by Over Top Clamping

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Sequence of Paste Release

Fill the Stencil

Deposit Final Condition

Separate with Definite Seperation Speed

End of Separation Process

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Main Variables for Paste Transfer

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Main Variables for Paste Transfer

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Rules for Stencil Design

Parameter: Stencil Thickness / Stencil Opening Area Ratio

Surface Area of Stencil Opening / Surface Area of the Stencil Inner Walls

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Rules for Stencil DesignExample : 0201 Components

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Rules for Stencil Design

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Rules for Stencil Design

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Rectangular — Round

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Automatic Screen Printer SP-1008

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