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Digital_Angel_316@yahoo.com
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Iron
Re: Part 3: Using PCB Layout Software: Custom Component Libraries
Digital_Angel_316@yahoo.com   4/18/2013 1:43:48 PM
NO RATINGS
pad size can matter for some manufacturing houses or even in general.  Surface mount in particular but even in through hole boards, over sizing a pad too much may mean the pad becomes a heat sink and the solder joints are less than desired.  I have had some occasions where plastic packages have been thought to take on moisture, and the reflow process for surface mount does not get the pads or leads up to temperature specs and bad solder joints occur.  Some IC manufacturers warn against this ...



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