Package and packing information
STA8088EXG
3.3
TFBGA169 12 x 12 x 1.2 mm package information
Table 12. TFBGA169 12 x 12 x 1.2 mm mechanical data
Data book (mm)
Ref. dim
Drawing (mm)
Min.
Typ.
Max.
Min.
Typ.
Max.
A(1)
A1(2)
A2
1.20
1.15
0.35
0.24
0.60
0.45
12.10
0.21
0.25
0.16
0.57
0.35
11.90
0.30
0.20
0.20
A4
0.60
0.45
0.585
0.40
12.00
9.60
b(3)
0.35
0.40
12.00
9.60
D
11.85
11.85
D1
E
11.85
12.00
9.60
11.85
11.90
12.00
9.60
12.10
E1
e
0.80
0.80
Z
1.20
1.20
ddd
eee(4)
fff(5)
0.10
0.15
0.08
0.10
0.15
0.08
1. TFBGA stands for Thin Profile Fine Pitch Ball Grid Array.
– Thin profile: 1.00mm < A . 1.20mm / Fine pitch: e < 1.00mm.
– The total profile height (Dim A) is measured from the seating plane gCh to the top of the component.
– The maximum total package height is calculated by the RSS method (Root Sum Square):
A Max = A1 Typ + A2 Typ + A4 Typ + ã (A12 + A22 + A42 tolerance values).
2. – The terminal A1 corner must be identified on the top surface by using a corner chamfer, ink or metallized
markings, or other feature of package body or integral heat slug.
– A distinguishing feature is allowable on the bottom surface of the package to identify the terminal A1
corner. Exact shape of each corner is optional.
3. The typical ball diameter before mounting is 0.40 mm.
4. The tolerance of position that controls the location of the pattern of balls with respect to datums A and B.
For each ball there is a cylindrical tolerance zone eee perpendicular to datum C and located on true
position with respect to datums A and B as defined by e. The axis perpendicular to datum C of each ball
must lie within this tolerance zone.
5. The tolerance of position that controls the location of the balls within the matrix with respect to each other.
For each ball there is a cylindrical tolerance zone fff perpendicular to datum C and located on true position
as defined by e. The axis perpendicular to datum C of each ball must lie within this tolerance zone. Each
tolerance zone fff in the array is contained entirely in the respective zone eee above The axis of each ball
must lie simultaneously in both tolerance zones.
20/24
Doc ID 022725 Rev. 2
STMICROELECTRONICS [ ST ]
