Heller Industries Inc. | https://hellerindustries.com/wp-content/uploads/2022/04/pan_APEX06-1.pdf
. It is a single layer board with the board thickness of 62 mils (1.57 mm) and the board size of 3.875 x 5.375 inch2. The board material is FR-4. Figure1
Surface Mount Technology Association (SMTA) | https://www.smta.org/knowledge/journal.cfm
PLATED FR-4 PRINTED CIRCUIT BOARDS Elissa Bumiller et al. Abstract 17-2 TERNARY INTERMETALLIC COMPOUND - A REAL THREAT TO BGA SOLDER JOINT RELIABILITY Shelgon Yee, Ph. D., et al. Abstract 17-1 A COMPARISON BETWEEN POWER AND THERMAL CYCLING FOR A FC PBGA
