AT32UC3A3256S_10 Datasheet, PDF (77/90 Pages) ATMEL Corporation – 32-bit AVR®Microcontroller

AT32UC3A3/A4
11.3 Soldering Profile
Table 11-5 gives the recommended soldering profile from J-STD-20.
Table 11-5. Soldering Profile
Profile Feature
Average Ramp-up Rate (217°C to Peak)
Preheat Temperature 175°C ±25°C
Time Maintained Above 217°C
Time within 5°C of Actual Peak Temperature
Peak Temperature Range
Ramp-down Rate
Time 25°C to Peak Temperature
Green Package
3°C/Second max
150-200°C
60-150 seconds
30 seconds
260 (+0/-5°C)
6°C/Second max.
8 minutes max
Note: It is recommended to apply a soldering temperature higher than 250°C.
A maximum of three reflow passes is allowed per component.
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32072C–AVR32–2010/03