Datasheet

DocID025936 Rev 8 127/143
STM32L052x6 STM32L052x8 Package information
136
Figure 51. Thin WLCSP36 - 2.61 x 2.88 mm, 0.4 mm pitch wafer level chip scale
package recommended footprint
Table 86. Thin WLCSP36 - 2.61 x 2.88 mm, 0.4 mm pitch wafer level chip scale
package mechanical data
Symbol
millimeters inches
(1)
1. Values in inches are converted from mm and rounded to the 3rd decimal place.
Min Typ Max Min Typ Max
A - - 0.33 - - 0.013
A1 - 0.10 - - 0.004 -
A2 - 0.20 - - 0.008 -
A3 - 0.025
(2)
2. Back side coating. Nominal dimension rounded to the 3rd decimal place results from process capability.
--0.001-
b 0.16 0.19 0.22 0.006 0.007 0.009
D 2.59 2.61 2.63 0.102 0.103 0.104
E 2.86 2.88 2.90 0.112 0.113 0.114
e - 0.40 - - 0.016 -
e1 - 2.00 - - 0.079 -
e2 - 2.00 - - 0.079 -
F - 0.305
(3)
3. Calculated dimensions are rounded to 3rd decimal place.
--0.012-
G - 0.440
(3)
--0.017-
aaa - - 0.10 - - 0.004
bbb - - 0.10 - - 0.004
ccc - - 0.10 - - 0.004
ddd - - 0.05 - - 0.002
eee - - 0.05 - - 0.002
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