
95
32117DS–AVR-01/12
AT32UC3C
8.3
Soldering Profile
Table 8-14 gives the recommended soldering profile from J-STD-20.
Note:
It is recommended to apply a soldering temperature higher than 250°C.
A maximum of three reflow passes is allowed per component.
Table 8-14.
Soldering Profile
Profile Feature
Green Package
Average Ramp-up Rate (217°C to Peak)
3°C/sec
Preheat Temperature 175°C ±25°C
Min. 150 °C, Max. 200 °C
Temperature Maintained Above 217°C
60-150 sec
Time within 5
C of Actual Peak Temperature
30 sec
Peak Temperature Range
260 °C
Ramp-down Rate
6 °C/sec
Time 25
C to Peak Temperature
Max. 8 minutes