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alignment requirements for 0.5mm pitch

ANDREW SINCLAIR

#19774

alignment requirements for 0.5mm pitch | 5 May, 2002

I am curreently in my final year of my HNC Mechatronics course. In the project section I am reviewing several screen printers for their suitability to run a new product containing 0.5mm pitch components. I would be interested in anyones opinion in what level of accuracy and repeatability tolerances I should be looking for on the vision system and the actual alignment of the stencil.

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Sir Alexandr

#19803

alignment requirements for 0.5mm pitch | 7 May, 2002

Almst quality of PCB with this pitch defined on used boards. Good board produses Fullmarks , look up to it , stencil parametrs isnt so critical but board material and layouts.

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#19853

alignment requirements for 0.5mm pitch | 9 May, 2002

I have no opinion on the accuracy and repeatability tolerances you should be looking for on the vision system and the actual alignment of the stencil. I expect Cp=2 from my printer.

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