smt pcb stencil design guideline
TRANSCRIPT
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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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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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