[Elecraft] Unsoldering

[Don Wilhelm]

Chip-Quik is great stuff for multi-leaded SMD components.
I don't use it on SMD components that have a small number of leads. 
Those with 2 leads, I heat the leads alternately until the component has 
absorbed enough heat to allow it to literally float off the pads.
Those components with leads formed so I can get a *very* thin knife 
blade tip under the lead, I can start at one end and heat the pad until 
the tip of my knife can lift the lead off the pad.   Note that I have 
sharpened my pocket knife for many years and the blade has a tip which 
is more slender than the most narrow Exacto knife.

If those techniques will not work, I use Chip-Quik.  The only downside 
to Chip-Quik is that *all* the Chip-Quik residue and special flux must 
be cleaned up or the new solder will not stick.

73,
Don W3FPR

On 2/20/2016 12:50 PM, Wayne Burdick wrote:
> I really should update the Desoldering Primer to mention Chip-Quik. I've used it to remove 100-pin TQFPs with no damage to the parts or the PCB. It's really cool stuff.
>
> Wayne
> N6KR
>
>
> On Feb 20, 2016, at 9:36 AM, Mel Farrer via Elecraft <elecraft at mailman.qth.net> wrote:
>
>> And as a last resort, cut the leads and then clean out the bad parts and leads.  Even the best rework gal will not try to save a multi-leaded part.  Too much risk of damage to the PCB.
>>
>> Mel, K6KBE
>
>
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