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FCBGA


Thermal characteristics

1  

All values are calculated by simulating the test method using a wind tunnel according to the SEMI standard. Air velocity of 0 m/s represents natural convection under still air in the wind tunnel specified in the SEMI standard.

2 Thermal characteristics are affected by environmental conditions such as the density of the copper pattern on the test board, etc.

Ball count PKG size[mm] Die size[mm] PKG
Substrate
Layers
Thermal
Test Board
Layers
θja(°c/w)
0m/s 1m/s 2m/s
324 19x19 8x8 7 4 32 25 23
400 21x21 8x8 7 4 31 24 22
484 21x21 8x8 7 4 30 24 22
655 24.5x19.5 5x5 6 4 25 19 17
729 29x29 7.07x7.07 6 4 25 19 17
955 33x33 13.57x13.57 7 4 14 - -
1155 35x35 12.52x12.52 7 4 14 9 7
1521 40x40 12x12 6 4 14 9 8
1521 40x40 17.5x17.5 8 4 13 8 6
1849 45x45 14x14 6 4 12 8 7
1849 45x45 17.27x17.27 7 4 10 6 5