The IPC standards behind a board that builds right the first time

Every board that builds right the first time starts with parts built to standard. IPC guidelines define how footprints, paste apertures, thermal vias, and manufacturing data should be built. Neurocad builds those standards into every part it generates, so your designs stay consistent from intent to manufacturing. Learn more.

IPC standards for PCB design at a glance
Standard Title What it covers Design stage
IPC-7351B Generic Requirements for Surface Mount Design and Land Pattern Standard Surface-mount land patterns, density levels, footprint naming (no longer maintained; succeeded by IPC-7352) Component library
IPC-7352 Generic Guideline for Land Pattern Design Current land pattern guidance for surface-mount and through-hole components Component library
IPC-7093 Design and Assembly Process Implementation for Bottom Termination Components QFN, DFN, SON, and LGA land patterns, thermal pads, thermal vias, and paste Component library, assembly
IPC-7525 Stencil Design Guidelines Stencil apertures, thickness, area and aspect ratios for solder-paste printing Component library, assembly
IPC-2221 Generic Standard on Printed Board Design Conductor spacing, materials, vias, thermal and electrical design rules Board layout
IPC-2581 Generic Requirements for Printed Board Assembly Products Manufacturing Description Data and Transfer Methodology XML format for complete PCB fabrication and assembly data Manufacturing handoff
IPC-A-610 Acceptability of Electronic Assemblies Visual acceptance criteria for finished assemblies, by product class Inspection
IPC Classes 1, 2, 3 Product classification (used across IPC-A-610, IPC-6012, J-STD-001, and other standards) Class 1: general electronic products. Class 2: dedicated service products needing extended life. Class 3: high-performance and harsh-environment products where downtime isn't acceptable Product definition; carried through all stages