Semiconductor devices using complementary field effect transistors (cfets)

A semiconductor device comprising:

• a first complementary field effect transistor (CFET) pair comprising:
• a first transistor having a first gate electrode coupled with a first input of an input pair;
• and
• a second transistor vertically stacked with the first transistor and having a same type as the first transistor and a second gate electrode coupled with a second input of the input pair,
• wherein the semiconductor device is configured to compare a first voltage received at the first input of the input pair to a second voltage received at the second input of the input pair.

A semiconductor device comprising:

• differential input circuit comprising:
• a first complementary field effect transistor (CFET) pair comprising:
• a first transistor having a first gate electrode coupled with a first input of an input pair;
• and
• a second transistor vertically stacked with the first transistor and a second gate electrode coupled with a second input of the input pair,
• wherein the differential input circuit is configured to compare a first voltage received at the first input of the input pair to a second voltage received at the second input of the input pair, and convey the comparison a strobe-gated positive feedback stage.