Varför kalla det 22nm, 14nm etc, när det inte har nånting med saken att göra?

Det är det väl?:

"The typical half-pitch (i.e., half the distance between identical features in an array) for a memory cell using the process is around 22 nm"

Sauce: Wikipedia

Läs gärna Nioreh83s svar en gång till...

Fo3

"The 22 nanometer (22 nm) is the CMOS process step following the 32 nm process in CMOS semiconductor device fabrication. The typical half-pitch (i.e., half the distance between identical features in an array) for a memory cell using the process is around 22 nm. It was first introduced by semiconductor companies in 2008 for use in memory products, while first consumer-level CPU deliveries started in April 2012."

http://en.wikipedia.org/wiki/22_nanometer

/thread

edit: Jag var inte först.

In microprocessors, what does 32, 45 and 22 nanometer technology mean and how does it relate to efficiency of a chip?
http://www.quora.com/In-microprocessors-what-does-32-45-and-2...

Those are typically the feature size. That is to say, it is the smallest "cut" that the fabrication method can make into the silicon. If one were to carve out a transistor on the surface of a silicon wafer, one has to be able to etch to a certain degree of precision. If the smallest cut you can make into the silicon is, say, 11nm, then in order to make a piece of a transistor, you'll need to cut a small square (really a dot) and then leave a space for the next cut.

This means the smallest effective "feature" that can be made is 22nm. For a typical MOSFET (field effect transistor), this size is usually the length of the gate. See the background of a MOSFET:

http://en.wikipedia.org/wiki/MOSFET

In practice, a smaller feature size means smaller transistors can be carved onto silicon. Smaller transistors require less voltage to operate and therefore, use less power. It used to be that smaller transistors also meant they were faster, but that has stopped being true since ~45nm.

22nm är alltså en tillverkningsprocess som ger det resultatet för DRAM.
Processen ger självklart olika mått på olika detaljer, helt enligt tillverkarnas valda designer.

Fo3

Edit: Definitionen har varit likartad åtminstone sedan 65nm.

Hade ju varit snyggt med en länk till ovanstående citat.

Dessutom undrar man vad du egentligen är ute efter...
Din fråga exemplifierar ju tex Intel processorer i 22nm.

"Som titeln lyder.

Varför sätter t.ex intel info på sina processorer t.ex 22nm när det inte är 22nm?

Nån som vet? "

Fo3

Ja du vet de inte själva så varför fråga oss?