13

Handling and Storage

ESD (Electrostatic Discharge)

Electrostatic discharge occurs naturally in the envi-

ronment. With the increase in voltage potential, the

outlet of neutralization or discharge will be sought. If

the acquired discharge route is through a semicon-

ductor device, destructive damage will result. ESD

countermeasure methods should be developed and

used to control potential ESD damage during handling

in a factory environment at each manufacturing site.

MSL (Moisture Sensitivity Level)

Plastic encapsulated surface mount package is sen-

sitive to damage induced by absorbed moisture and

temperature. Avago follows JEDEC Standard J-STD

020A. Each component and package type is classi-

fied for moisture sensitivity by soaking a known dry

Table 5. ESD Classification

Pin#

HBM

MM

CDM

Rating

Class

Rating

Class

Rating

Class

All Pins

±1000V

Class 1C

± 200V

Class B

± 200V

Class II

(JESD22-A115-A)

(JESD22-C101C)

Note:

1. PA module products should be considered extremely ESD sensitive.

package at various temperatures and relative humid-

ity, and times. After soak, the components are sub-

jected to three consecutive simulated ref lows.

The out of bag exposure time maximum limits are

determined by the classification test describe

above which corresponds to an MSL classification

level 6 to 1 according to the JEDEC standard

IPC/JEDEC J-STD-020A and J-STD-033.

ACPM-7821 is MSL3. Thus, according to the J-STD-

033 p.11 the maximum Manufacturers Exposure Time

(MET) for this part is 168 hours. After this time

period, the part would need to be removed from the

reel, de-taped and then re-bake.

MSL classification ref low temperature for the

ACPM-7821 is targeted at 250

°C +0/-5°C. Figure 19

and Table 7 show typical SMT profile for maximum

temperature of 250

°C +0/-5°C.

Table 6. Moisture Classification Level and Floor Life

MSL Level

Floor Life (out of bag) at factory ambient

≤30°C/60% RH or as stated

1

Unlimited at

2

1 year

2a

4 weeks

3

168 hours

4

72 hours

5

48 hours

5a

24 hours

6

Mandatory bake before use. After bake, must be reflowed within the time limit specified on the label

Note:

1. The MSL Level is marked on the MSL Label on each shipping bag.