| Would anyone have experience or information on where I could find pad geometry for tantalum capacitors that can be surface or plated thru hole mounted. | Yup, Check out IPC-782. That's got all the info on land geometries that you'd be looking for. Also, check with the component mfr. They can always provide land specs. I just realized, you may be looking for something different. If flexibility to use either a PTH device or an SMT device is what you're looking for, you can design for it or you can preform a PTH device to be accomodated in an SMT process.