| (4) Recommended
temperature profile for VPS |
|
The recommended soldering conditions
for the VPS method are shown below. |
Table 3-8. Recommended
Conditions
·
Maximum reflow temperature
(package surface temperature) |
215°C
or below |
| ·
Time at reflow temperature of 200°C |
Between
25 and 40 seconds |
| ·
Time with preheat temperature of 120 to 150°C |
Between
30 and 60 seconds |
·
Amount of chlorine in rosin base flux
(percentage mass) |
0.2 %
or less |
 |
| Figure 3-28 Recommended
Temperature Profile of VPS Reflow |
| * The number of reflow times is
one, two or three, depending on the product. For details, consult an NEC Electronics sales representative. |
|
