Understanding the revisions of IPC-4556 is key to knowing which version applies to your project:
IPC-4556 places strong emphasis on preventing — a brittle, non-solderable nickel layer caused by excessive corrosion of nickel during gold deposition. The standard mandates: ipc-4556 pdf
If you are currently evaluating surface finishes for an upcoming project, you might want to look into the specific calibration techniques required to accurately measure these thin metallic layers under IPC-4556 guidelines. Share public link Understanding the revisions of IPC-4556 is key to
The finish must satisfy wetting requirements under both lead-free (SAC305) and traditional tin-lead solder profiles. ipc-4556 pdf