stencil thickness for bga

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Does anyone know of a standard stencil thickness for BGA'S. ... - Oct 13, 2003 by

Aperture size should vary with the component [pitch]. That ... - Oct 13, 2003 by davef

mrmaint

#26028

stencil thickness for bga | 13 October, 2003

Does anyone know of a standard stencil thickness for BGA'S. We currently use 4 to 5 mil stencils depending on component mix. Is an aperature reduction required for BGA'S. If so what percentage. Any help would be greatly appreciated.

Thanks

MRMAINT

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davef

#26036

stencil thickness for bga | 13 October, 2003

Aperture size should vary with the component [pitch]. That size should be the same a the pad size. So, generally pinching is not required.

Indium discusses BGA apertures on their site [ http://www.indium.com ]

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