GE864 Hardware User Guide
1vv0300694 Rev.10 - 10/06/08
12.1.6 PCB pad design
Non solder mask defined” (NSMD) type is recommended for the solder pads on the PCB.
Recommendations for PCB pad dimensions |
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| Ball pitch [mm] | 2,5 | |
| Solder resist opening diameter A [mm] |
| 1,150 |
| Metal pad diameter B [mm] |
| 1 ± 0.05 |
Placement of microvias not covered by solder resist is not recommended inside the “Solder resist opening”, unless the microvia carry the same signal of the pad itself.
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