All,
IPC-D-275 was inactivated for new design in February, 1998. It was replaced
by IPC-2221, Generic Standard on Printed Board Design, and IPC-2222,
Sectional Design Standard for Rigid Organic Printed Boards. Both of these
standards are available from IPC.
Regards,
Gary Ferrari
Executive Director
IPC Designers Council
860-350-9300