Indeed. For Si-based electronic technology, CMOS or other, we routinely deal with two-digit nanometer scales. 22nm, for example.
For optical technology, structure on that scale has no effect on EM radiation with wavelengths on scales of mm (THz) or microns (IR). This is seriously into UV territory. Bits of matter holding bits of information as a phase changes need to be of a certain size, probably larger than we would like (but I'm not expert on it), for phases to be meaningful.
For a given energy of interaction, massless quanta tend to be more spread out than massive, as a rule of thumb for practical purposes. I think we'll be using electron-oriented information processing technologies for a long time, until someone figures out a way to stabilize muons. Then we can make some really tiny technology.