New IPC Standard the Ticket to Next-Gen PCB Designs

摘要

After Going Several years between updates, IPC has released IPC-2221B, the industry standard for designing printed circuit boards. PCD&F editor in chief Mike Buetow spoke in January with Task Group chairman Gary Ferrari about the critical changes to the spec. (Disclosure: Buetow worked as an IPC staff member under Ferrari on the original IPC-2221.) GF: IPC-2221A didn't cover anything on lead-free. We wanted to make sure that in the appropriate sections we included warnings or advice on as much of lead-free as we could - the materials, decomposition, and so on; that's a big factor in the materials set. Then there are all the new surface finishes. For tin-lead, everyone used ENIG and HASL.