Is it possible to replace the sata connection chip of an external HDD?

Hy,

A little introduction:

I'm subject of Murphy's law here, click here If you don't know it yet.

Just after formatting my iPod, my internal drive broke down, and just after I got my MacBook back with a new drive (replaced under warranty), the drive of my back-up broke down, which means I lost all my data and especially my music.

I screwed the external hard drive open, it was a WD My Book, knowing it's nowhere near warranty anymore.

I looks like the chip burned down (actually it smells like that also) and I was wondering if I couldn't simply replace that chip. I know it could be possible to get my data back by sending it to a specialized company but they will charge my at least 500€, and being a student it's a lot of money for me.

Of I forget to say, I still have hope getting my data back like that because when I plug it in a sata to usb dock the drive still powers up and I can hear it spinning

So if anybody could tell me if this would be possible, and if so, how I would be very thankful!

Alexander