Methods of forming a multi-segment chip or integrated circuit device are provided. A first slew-rate enhancement circuit receives a first control voltage and outputs a first voltage. The drive shaft is mounted within the bearing and the outer housing. In addition, wings may extend from the shank. The invention also includes methods of forming optoelectronic devices and solar cells. The difference comparator has increased common-mode difference tolerance, and large op-amp offset tolerance, as well as fast decision time.