Physic of small devices

[Adrian T. (tadrian)]

Hallo Zusammen,
Ich lese derzeit ein Buch über heterogeneous Computing, hierbei bin ich 
auf folgenden Satz gestoßen. Was ist hierbei mit "physics of small 
devices" (im Zusammenhang mit der Frequenz) gemeint?

Danke :)

Satz:
During the mid 2000s, the transistor size became so small that the 
“physics of small devices” started to govern the characterization of the 
entire chip. Thus frequency improvement and density increase could not 
be achieved anymore without a significant increase of power consumption 
and of power density.

[Peter L. (Gast)]

Quantenphysik

[Johann L. (gjlayde)]

Ein Problem bei immer kleineren Einheiten:

Low-κ dielectric material implementation is one of several strategies
used to allow continued scaling of microelectronic devices, colloquially
referred to as extending Moore's law. In digital circuits, insulating
dielectrics separate the conducting parts from one another.

As components have scaled and transistors have gotten closer together,
the insulating dielectrics have thinned to the point where charge build
up and crosstalk adversely affect the performance of the device. Replacing
the silicon dioxide with a low-κ dielectric of the same thickness reduces
parasitic capacitance, enabling faster switching speeds and lower heat
dissipation.

https://en.wikipedia.org/wiki/Low-k_dielectric