IEC Standards IEC TR 63378-1-2021 pdf free download – Thermal standardization on semiconductor packages – Part 1: Thermal resistance and thermal parameter of BGA, QFP type semiconductor packages IEC TR 63378-1-2021 pdf free download - Thermal standardization on semiconductor packages – Part 1: Thermal resistance and thermal parameter of BGA, QFP type semiconductor packages. This part of lEC 63378 specifies the terms and definitions that... 02-16 Download Now