Lithography news20nm lithography will only be news for a few short months.
Apple has shipped ALL OF THEIR 20nm A8 Chipsets now and admits already being in production on the A9 (quad core ??) 14nm chipset at Samsung/Global.
Samsung and Global have 2 each (4 total) 14nm lines up and running between them right now and all of these are filled up with Apple A9 at the moment. Remember, 14nm is still sorta slow running compared to 20nm or 28mn.
TSMC is moving their current focus from 20nm planar to 16nm FinFET and the production level crank up of their first production FinFET lithography processes.
Right now only Samsung and Global (who have a production technology sharing deal with IBM) have a real functional 14nm production capability for ARM chipsets right now.
ARM is done with 20nm at this point, it is moving rapidly down into FinFET land instead. Other than slight bragging rights, a 20nm is too too similar to 28nm to make it a worthwhile stop for most of the chip makers out there. They will leap directly from 28nm down to 14/16nm when the time comes.
Resisting this move strongest are the Chinese chip makers, who will cling to the low low cost 28nm production lines until they just plain
have to leave them behind.
Top end ARM chipsets are VERY POWERFUL right now compared to real mobile computing needs. Very few new state of the art chipsets are needed compared to the vast sea of 28nm dual core and quad core designs that are going into the 3rd World's very first smart phones. Android itself is going on a diet, requiring EVEN LESS resources in the current predominate mass of the 32 bit OS driven products.
Android L and the 64 bit systems will create a divide between big processor, big memory 64 bit Android Lollipop systems and the MUCH cheaper thinner sleeker 32 bit Android 1 system types.
Microsoft was intending to go compete against Firefox OS in the emerging 3rd world markets, thinking that Rockchip/Intel was going to give them a low enough cost yet powerful enough dual core A7 chipset to do that.
So far this has not happened -- not even close.
Right now Intel is terrified about the Apple designed 14nm quad core A9 as it can substitute freely into all of Apple's laptops at very short notice. Intel has told the world that 14nm Skylake for Apple laptops is going to be ready in early 2015
at a very low cost so Intel can keep on supplying chipsets to Apple for laptops.
Apple has told the world that if Intel bobbles this Skylake Hail Mary pass of theirs that they will lose Apple's laptops to the Samsung/Global produced Apple A9 almost instantly.
And stay lost .... forever ....
Also note that Samsung is once again Apple's current chip maker du jour .... Ironic, ain't it?
Intel wanted that job too, but Apple said no. Four running lines vs 1 or mebbe 2 lines, not a hard decision for Apple to make for 2015.
The new Artemis and Maya ARM next generation big-LITTLE 64 bit system designs have now been given to Apple (and Apple has shared parts of them with Samsung) so the Apple A9 might have some brand new ARM next generation tech in it as well.
Remember, as a 33% owner of ARM, Apple gets all the new ARM stuff at least a year ahead of anybody else .....