Is this a good pcb design practically speaking?
This is a design of a water level indicator based on a single NOT gate IC (HEF 4049).
I redid the layout. Increased the trace width and attached the power to the IC.
Please tell me if this is ok?
Also please tell me is it must to have a power plane?
1) i went back to original layout and beefed up the tracks
2) Made the IC pads bigger.
3) Was able to reconfigure the layout to connect power without jumpers (this took up most of the time).
4) Did as Verence suggested and put text on the copper layer. Version number, date and name.
5) And finally added the positive for the supply voltage.
Moved track from pin 7 of IC away from pin 8.