DC to AC in micro- and nano- scaled electric circuits

[user-000]

Is there a problem of converting DC to AC in micro- or nano- scaled electric circuits? Is designing a new device that would perform such function in demand in micro- or nano- electronics?

 

[Baluncore]

Is there a problem of converting DC to AC in micro- or nano- scaled electric circuits?

No.
An oscillator, or an H-bridge, does that job well.