Process recommendations

MP34DT02

14/16

DocID026560 Rev 2

9

Process recommendations

To ensure a consistent manufacturing process it is strongly advised to comply with following

recommendations:

–

The recommended pick-up area for the MP34DT02 package must be defined

using the worst case (ie. no device alignment during picking process). This area

has been defined considering all the tolerances of the components involved (reel,

package, sound inlet). Picker tolerance shall be considered as well.

–

To prevent damage to the MEMS membrane or incorrect pick-up and placement,

do not pick up the component on the inlet area

–

For the package outline please refer to Figure 10. Nozzle shape, size, and

placement accuracy are the other key factors to consider when deciding on the

coordinates for the picking.

–

Device alignment before picking is highly recommended.

–

A vacuum force greater than 7 psi must be avoided

–

1 kPa = 0.145 psi (lb/in2) = 0.0102 kgf/cm² = 0.0098 atm

–

All the recommended dimensions (device safe pick area) do not include the pick

and place equipment tolerances

–

According to Figure 10, standard picker tool can be used to handle this device

Figure 10. Recommended picking area

GAMS3107141420SG

2.27

Pocket Size Clearance

Sound Port Positional Tolerance

Safe Pick Area

Pocket Positional Tolerance

Package Size Tolerance

1.245

0.58

1.99

Radius of package

corner (0.25 mm)

0.285

1.49

0.23

0.96