gEDA PCB lend paterns (footprints) IPC-7351
Naming Convention http://landpatterns.ipc.org/IPC-7351BNamingConvention.pdf
IPC-7351B Generic Requirements for Surface Mount Design and Land Pattern Standard http://www.ipc.org/toc/ipc-7351b.pdf
Buy: https://portal.ipc.org/Purchase/ProductDetail.aspx?Product_code=987caa7f-ff93-df11-9e60-002219545fd5
Licence FreeBSD; XCROSS 2013