From: Isaac Marino Bavaresco <isaacbavaresco@gmail.com>
To: Microcontroller discussion list - Public. <piclist@mit.edu>
Sender: "piclist-bounces@mit.edu" <piclist-bounces@mit.edu>
Date: Fri, 25 Sep 2020 18:18:04 -0700
Subject: Re: [EE] Hand soldering fine pitch packages
Thread-Topic: [EE] Hand soldering fine pitch packages
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>>What are people doing for parts with a thermal pad? I.e. can one just put=
 a dab of solder paste on the pad or is it mandatory to use a stencil?


With the soldering iron I apply a dab of solder to the board's and the IC"s=
 thermal pads. Then I use a hot air gun to heat the board from below, and w=
ith tweezers I hold the IC in front of the nozzle until it is hot enough, t=
hen I place it over its place on the board, adjusting its position and pres=
sing it down a little. The excess solder just forms a ball at the border of=
 the body.

When the IC is correctly positioned, I turn the gun off and wait a little, =
until the solder solidifies, then I solder the regular pads around the IC.

Cheers,
Isaac
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Enviado de meu dispositivo Android com K-9 mail. Desculpe-me pela brevidade=
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