4

SMT production guide

4.1

Reflow profile

Figure 2. JEDEC STD020 reflow profile

Table 4. Reflow profile parameters

Profile parameter

Value

Preheat time (ts)

60 – 120 seconds

Preheat temperatures (Tsmin - Tsmax)

150 – 200 °C

TL

217 °C

Total time above TL

60 – 150 seconds

Peak temperature (TP)

245 – 250 °C

Time within 5 °C of peak

30 – 40 seconds

Ramp-up (from 217 °C to peak)

0.0 – 3.0 degrees / seconds

Ramp-down (from peak to 217 °C)

-6.0 – -1.0 degrees / seconds

Time from 25 °C to peak

5 – 8 minutes

4.2

Baking requirements

The module is rated MSL3 as defined in JEDEC J-STD-020 and it is shipped in a sealed bag reporting the sealing

date.

ST87M01

SMT production guide

DS14679 - Rev 1

page 7/20