Category:PCB Assembly PCB Assembly Service

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In assembly the bare board is populated with electronic components, called a "printed circuit board assembly" (PCBA). In through-hole technology, the component leads are inserted in holes surrounded by conductive pads; In surface-mount technology (SMT), the component is placed on the PCB so that the pins line up with the conductive pads or lands on the surfaces of the PCB.

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Solder resist from QFP Leads Reply 2017-02-28 18:59:16
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Lebrun Bernard

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Does anyone have design knowledge of why some manufacturers remove solder resist from the area around pads on fine pitch devices? What purpose does it serve?
I only know that it would be better for AOI as you would not have light being reflected from the solder resist coating between soldered leads as it would be a matt finish if it was removed.
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Statement: This post is only the personal view of the author and does not represent the opinions of ALLPCB.com.

Pedro Skou

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incredible work

Michele Baldin

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incredible work

Luis Moreno

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Bravo! Hope you can write soon.

Dana

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Really appreciate your content. It quite benefits my learning and it has solved my puzzles completely. Thanks.
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