[NLRS] Power on 5760 MHz

Dr. Gerald N. Johnson geraldj at weather.net
Thu Nov 8 12:59:41 EST 2012


How do you solder QFN that don't have any metal exposed on the edges? 
How do you solder the center pad that's often needed for both grounding 
and heat sinking? Without going to reflow?

73, Jerry, K0CQ

On 11/8/2012 11:15 AM, Russ Ramirez wrote:
>
>
> I have had 100% success so far using a Hakko 888 and 1.2mm tips along with
> .38mm solder. The combination ensures there's not too much heat or solder.
> I also have a ATTEN 850B reflow station that I use with silver solder paste
> from Cash Olsen (http://kd5ssj.com), but honestly the former method is way
> faster overall and you don't have to worry about solder bridges.
>
> Russ
> K0WFS
>
> On Thu, Nov 8, 2012 at 10:55 AM, Dr. Gerald N. Johnson
> <geraldj at weather.net>wrote:
>
>>
>>


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