Imagineering, Inc. | https://www.pcbnet.com/blog/everything-you-need-to-know-about-pcb-finish/
. What PCB Finish Should I Use? Lead or Lead-Free? There has been some debate as to whether printed circuit boards that contain lead are damaging to the environment
ASYMTEK Products | Nordson Electronics Solutions | https://www.nordson.com/en/divisions/efd/resource-center/solder-selection-guide
. lead-free Many applications have a requirement for use of lead-free solder alloy. Sometimes this is due to the product falling under the RoHS
