I am very comfortable with the usage of the Moore's law and its impact on microelectronics. However I had always associated Moore's law to the gate length scaling as a factor of square root of 2 every two year. (This then leads to a related performance increase which is of our interest)
Only recently I came to realize Moore's law is about number of transistor per area which, I known, was very tightly linked but not anymore (For instance the 14nm technology does not have devices with 14 nm gate length but rather 14nm width finfets).
Still in most official definitions they do not use the term ‘number of transistor per area’ they would rather use the terms:
- "number of transistor per dense integrated circuit" (Wikipedia)
- "Number of component per integrated function" (Original graph from the paper 1965)
- “components per chip” (IEEE, IEDM 1975 paper)
And thus my question:
What is the definition of a ‘dense integrated circuit’ or ‘integrated function’ and how does it relates to Area in Moore’s law?