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Posted

Dupa cum bine stiti, (poate) unii dintre voi mi-ati vazut statusul, am prezentat atestatul :)

 

Tema mea a fost Microprocesoare. Evolutie, tipuri caracteristici. Chiar spuneam ca au evoluat foarte mult si ca tehnologia de fabricatie a ajuns la 22 nanometri. Tipii din comisie mi-au zis ca mai jos de 8 nanometri nu are cum sa coboare ca e practic imposibil sa mearga electronii fiind practic lipiti unu de altu. Asa este? e o chestie ce abia acum am auzit-o si ma inrtrebam, voi ce stiti de acest subiect?

Posted

Am cautat sa vad ce dimeniune ar avea electronul si cred ca asta e... daca nu ma insel
 

 

The relative strength of the electromagnetic interaction between two charged particles, such as an electron and a proton, is given by the fine-structure constant. This value is a dimensionless quantity formed by the ratio of two energies: the electrostatic energy of attraction (or repulsion) at a separation of one Compton wavelength, and the rest energy of the charge. It is given by α ≈ 7.297353×10−3, which is approximately equal to 1137.

 

asta ar veni undeva putin sub 8 nanometri dimensiunea electronului...

Posted

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

 

deci ai nucleu atomului la 1-10 fm (1fm = 10 la -15 m ) .. mie ciudat sa cred ca raza lu nenea electronul e 8 * 10-9 .    

 

Mai ales ca electronu e mult mai mic.

 

Probabil se refera la efectele electronului, care sunt ceva mai extinse:

http://en.wikipedia.org/wiki/10_nanometer

 

Reported estimates indicate that transistors at these (6nm) dimensions are significantly affected by quantum tunnelling.[10] As a result, non-silicon extensions of CMOS, using III-V materials or nanotubes/nanowires, as well as non-CMOS platforms, including molecular electronicsspin-based computing, and single-electron devices, have been proposed. Hence, this node marks the practical beginning of nanoelectronics.

 

Apar probleme, da. Dar asta nui problema, ele se pot rezolva. Avem compurile alea cuantice daca altfel nu mere. (avem deja chestii interesante aici: http://www.dwavesys.com/en/dev-tutorial-blackbox.html )

love is a verb
Love is a doing word

Posted

tare... nu stiam ca atomul e de 10 la -15 :) Si totusi daca publicul larg are acces la 22 de nm gandestete ca armata probabil are deja tehnologie de pico.. in cazul in care au rezolvat acele probleme.



si totusi acre ar fi problemele.. ca la ora asta nu am prins ce scria acolo cu tehnologia de 10 nm

Posted

nu atomu, ci nucleu atomului.. atomu e mai mare. (cel putin asa am inteles eu... sanse mari sa fi inteles tot gresit :)) )

 

Dc crezi ca armata ar avea mai mici ? 

uite, de exemplu pe 45 de nm sunt procesoarele lu asta:

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

 

 

http://www.tomshardware.com/news/fujitsu-venus-sparc64-viiifx-cpu,7806.html

 

size of atom: http://hyperphysics.phy-astr.gsu.edu/hbase/particles/atomsiz.html

love is a verb
Love is a doing word

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