damaged integrated circuit

[manut]

hello,
I have a small problem with the servo, I modified it with the technique of  2.2k resistors,.. here: http://www.embeddedtronics.com/servo.html   
...and removing the potentiometer, I damaged a small piece of the integrated circuit...oooops..  . Does anyone know where I can get the schema of the servo parallax standard to fix it by soldering  a wire or applicating conductive ink ..
I never used conductive ink, is it efficient?
thanx