When creating a footprint from the manufactures specification; They often specify a range +- 0.012 for example. What value do I choose for the pad. The center value the min or the max. I guess it depends on the design of the spec but should I create the pads to the max size of the spec? And should I add a little bit more around the edges for extra.
For hand soldering surface mount devices with heat sink pads on the bottom of the surface mount component, do I extend the pad outside of the footprint so I can heat the pad with the soldering iron. What is the order of the process of soldering surface mount components with heat sink pads. Do you tin the heat sink, put the component on the heat sink, re-heat the heat sink pad/soldering the component to the heat sink, then solder the other pads?
Thanks for the help.
For hand soldering surface mount devices with heat sink pads on the bottom of the surface mount component, do I extend the pad outside of the footprint so I can heat the pad with the soldering iron. What is the order of the process of soldering surface mount components with heat sink pads. Do you tin the heat sink, put the component on the heat sink, re-heat the heat sink pad/soldering the component to the heat sink, then solder the other pads?
Thanks for the help.