• Lutowanie QFN podczerwienią - profil.

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Lutowanie QFN podczerwienią - profil.

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#1 Lutowanie QFN podczerwienią - profil.

by amstel • 15 May 2012, 18:55
Witam

1.Chciałbym wlutować LTC3455 w obudowie QFN (PB) za pomocą Quick 760B i zastanawiam sie czy takie temperatury i czas ekspozycji nie uszkodzą wrażliwego na temperature ukladu.

• Heating up from 25 to 140 °C at a rate of 1~3 °C/sec.
• Preheat at 140-150 °C for 120 ~ 150 seconds
• Solder reflow. Ramp up temperature at 2-3 °C/sec to a peak temperature of 220-225 °C. Tempera-
ture over 183 °C for 45 ~ 75 sec.
• Cooling down to room temperature at 2-4 °C/sec to avoid undesired intermetallic compound layer.
QFN Reflow.pdf

2. W jaki sposob można ustawić czas narastania temperatury podgrzewacza w Quicku o 1°C/sec ?

Pozdrawiam
amstel



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Re: Lutowanie QFN podczerwienią - profil.

by Google Adsense [BOT] • 15 May 2012, 18:55
 This topic is marked as ARCHIVAL. Please only reply if your message contains the solution (Terms and Conditions p. 12.1).
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