Historical
IEC 60191-6-13 Ed. 1.0 b:2007
Mechanical standardization of semiconductor devices - Part 6-13: Design guideline of open-top-type sockets for Fine-pitch Ball Grid Array and Fine-pitch Land Grid Array (FBGA/FLGA
"IEC 60191-6-13:2007 gives a design guideline of open-top-type semiconductor sockets for Fine-pitch Ball Grid Array (""FBGA"" hereafter) and Fine-pitch Land Grid Array (""FLGA"" hereafter). This standard is intended to establish the outline drawings and dimensions of the open-top-type socket out of the test and burn-in sockets applied to FBGA and FLGA."
International Electrotechnical Commission [iec]