smt pcb stencil design guideline

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www.smthelp.com SMT PCB — CAD Data

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Page 1: SMT pcb stencil design guideline

www.smthelp.com

SMT PCB — CAD Data

Page 2: SMT pcb stencil design guideline

www.smthelp.com

Stretching of PCB

Correcting this Effect by Fiducial Tolerance

Page 3: SMT pcb stencil design guideline

www.smthelp.com

Deflection of PCB— Max 1% Diagonal

Overcome this Effect by Over Top Clamping

Page 4: SMT pcb stencil design guideline

www.smthelp.com

Sequence of Paste Release

Fill the Stencil

Deposit Final Condition

Separate with Definite Seperation Speed

End of Separation Process

Page 5: SMT pcb stencil design guideline

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Main Variables for Paste Transfer

Page 6: SMT pcb stencil design guideline

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Main Variables for Paste Transfer

Page 7: SMT pcb stencil design guideline

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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

Page 8: SMT pcb stencil design guideline

www.smthelp.com

Rules for Stencil DesignExample : 0201 Components

Page 9: SMT pcb stencil design guideline

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Rules for Stencil Design

Page 10: SMT pcb stencil design guideline

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Rules for Stencil Design

Page 11: SMT pcb stencil design guideline

www.smthelp.com

Rectangular — Round

Page 12: SMT pcb stencil design guideline

www.smthelp.com

Automatic Screen Printer SP-1008

Page 13: SMT pcb stencil design guideline

www.smthelp.com

Welcome inquiry

1,Please visit : www.smthelp.com

2, Find us more: https://www.facebook.com/autoinsertion

3, Know more our team: https://cn.linkedin.com/in/smtsupplier

4, Welcome to our factory in Shenzhen China

5, Looking forward to your email: [email protected]