Datasheet

Package information STM32F405xx, STM32F407xx
178/202 DocID022152 Rev 8
Figure 88. UFBGA176+25 - 201-ball, 10 x 10 mm, 0.65 mm pitch, ultra fine pitch
ball grid array recommended footprint
Note: Non solder mask defined (NSMD) pads are recommended.
4 to 6 mils solder paste screen printing process.
Stencil opening is 0.300 mm.
Stencil thickness is between 0.100 mm and 0.125 mm.
Pad trace width is 0.100 mm.
eee - - 0.150 - - 0.0059
fff - - 0.050 - - 0.0020
1. Values in inches are converted from mm and rounded to 4 decimal digits.
Table 96. UFBGA176+2 recommended PCB design rules (0.65 mm pitch BGA)
Dimension Recommended values
Pitch 0.65
Dpad 0.300 mm
Dsm
0.400 mm typ. (depends on the soldermask
registration tolerance)
Table 95. UFBGA176+25 ball, 10 × 10 × 0.65 mm pitch, ultra thin fine pitch
ball grid array mechanical data (continued)
Symbol
millimeters inches
(1)
Min Typ Max Min Typ Max
Ϭϳͺ&Wͺsϭ
'SDG
'VP
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