STW5098BBLT datasheet(78/85 Pages) STMICROELECTRONICS

78 / 85 page

Package mechanical data

STw5098

78/85

18.1

LFBGA 6x6x1.4

Note:

LFBGA stands for Low Profile Fine Pitch Ball Grid Array.

- Low profile: the total profile height (DIm A) is measured from the seating plane to the top of

the component. The maximum total package height is calculated as follows:

. Fine pitch: e<1.0 mm pitch

The typical ball diameter before mounting is 0.30 mm

The tolerance of position that controls the location of the pattern of balls with respect to

datum 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 datum A and B as defined by e. The

axis perpendicular to datum C of each ball must lie within this tolerance zone.

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.

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 heatslug. 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.

Table 57.

Dimensions of LFBGA 6x6x1.4 112 4R11x11. 0.5

Reference

Databook (mm)

Drawing (mm)

Notes

Min.

Typ.

Max.

Min.

Typ.

Max.

1.40

1.26

Note 1

0.15

0.16

0.21

0.26

0.985

0.93

0.985

1.04

0.20

0.16

0.20

0.24

0.80

0.77

0.785

0.80

0.25

0.30

0.35

0.25

0.30

0.35

Note 2

5.85

6.00

6.15

5.90

6.00

6.10

5.00

5.85

6.00

6.15

5.90

6.00

6.10

5.00

e0.50

0.50

F0.50

0.50

ddd

0.08

eee

0.15

Note 4

fff

0.05

Note 5

A2Typ

A1Typ

( 1

tolerancevalues

)

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