AVR-Chat

My oven is a Kambrook about 3 years old, I did do a run with it after I
purchased it and the procedure I used was to get the temperature stabilised
to about 140c to 150c with the board in the oven before turning up the
temperature for the solder melt phase.  I found that most of the SMD
components skewed due to misplacement of the solder paste, this dragged them
between pads and most had to be reworked it seems that the solder paste has
to be precisely placed on the pads and perhaps components glued down.  The
board was milled not etched and perhaps solder mask on the board may help
but I think accurate placement of the solder paste is the most important or
perhaps tinning of the board with solder and using a liquid flux may work.

Owen. 



-----Original Message-----
From: AVR-Chat@yahoogroups.com [mailto:AVR-Chat@yahoogroups.com] On Behalf
Of Kathy Quinlan
Sent: Sunday, March 19, 2006 4:44 PM
To: AVR-Chat@yahoogroups.com
Subject: Re: [AVR-Chat] Type K inputs on AVR

OWEN-A wrote:

> Have you found a suitable oven for SMD work, I tried a toaster oven of a
> brand commonly available in AU and found that it was a little slow coming
up
> to temp, and the temp distribution was poor (hot spots). There was a lot
of
> heat loss "no insulation" the outside covers were nearly as hot as the
> inside of the oven and due to lack of time and the desperate need for a
SMD
> oven lost interest for the time being.
> Have you been able to find an oven that looks like it would do the job?
> Owen.

No idea, I bought a brevile one a few years back, I hope it will do the job
lol.

-- 
Regards,

Kat.
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