THE ENERGY BARRIER METHOD, DEVELOPED BY G. BOOTHROYD TO COMPUTE THE PROBABILITIES OF NATURAL RESTING ASPECTS OF PARTS, IS COMPUTATIONALLY DEMANDING FOR ALL BUT THE SIMPLEST CROSS-SECTIONAL SHAPES, AND REQUIRES A CLEAR VISUALIZATION OF THE FORM OF THE ENERGY BARRIER. THE METHOD BECOMES PROTRACTED AND UNWIELDLY ESPECIALLY FOR IRREGULAR SHAPES. A GRAPHICAL CAD ALTERNATIVE IS PROPOSED IN THIS PAPER.
Surge arresters - Part 7: Glossary of terms and definitions from IEC publications 60099-1, 60099-4, 60099-6, 61643-1, 61643-12, 61643-21, 61643-311, 61643-321, 61643-331 and 61643-341
Mechanical standardization of semiconductor devices - Part 6-18: General rules for the preparation of outline drawings of surface mounted semiconductor device packages - Design guide for ball grid array (BGA)
Mechanical standardization of semiconductor devices - Part 6-19: Measurement methods of package warpage at elevated temperature and the maximum permissible warpage