----- Original Message -----
From: "Frank" <[EMAIL PROTECTED]>
To: <[email protected]>
Sent: Tuesday, March 07, 2006 1:53 PM
Subject: [soft_radio] SURFACE MOUNT SOLDERING
> Hello,
> I've benn having problems soldering surface mount chips, like the FET
> SOIC16 switch ICs. Often, when I power up, the chips become really hot
> and simply don't work. I was wondering if you guys can give me advice
> for this. I don't apply the iron for too long, but still it is likely
> that I'm overheating the ICs.
>
> I've been thinking about buying a weller WESD51 soldering iron station,
> which has a temperature control knob 350F to 850F. Do you know any
> recommended temperatures or procedures? Are there any special features
> on soldering irons I should look for?
You need a decent soldering station, I use a second-hand Metcal STSS (quite
cheap on Ebay) with an STCC-144 cartridge for chips like that. The Metcal
mini-hoof cartridge is better for fine-pitch devices, using a drag-soldering
technique.
Leon
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