[Arm-netbook] Samsung's 2GHz Exynos 5250 is first SoC with super fast dual-core Cortex-A15 processor

[lkcl luke]

On Mon, Jan 23, 2012 at 11:56 AM, Vladimir Pantelic <vladoman at gmail.com> wrote:
> lkcl luke wrote:
>> On Mon, Jan 23, 2012 at 10:56 AM, Vladimir Pantelic<vladoman at gmail.com>  wrote:
>>
>>>>  http://www.ti.com/product/am3894  hm - i swear i saw something like
>>>>  this for $95 not $38.  ok, so maybe they managed to get reasonable
>>>>  yields on these 1000+ pin BGA packages after all.
>>>
>>>  it's again 0.65mm ball pitch, that's huge these days compared to
>>>  0.4mm on the mobile chips...
>>
>>   [btw china-based factories typically can't cope with anything below
>> 0.8mm: it requires plasma tooling which they simply haven't got.]
>
> I can assure you that china is perfectly capable of making 0.4mm PCBs
> and soldering them...

 i can assure you that the smaller factories most definitely are not.
their PCB manufacturing capabilities are incapable of getting the
accuracy required, and their assembly techniques are incapable of
lining up the BGA pads accurately.

 this is why freescale and many other SoC vendors create two versions
of their CPU: one is 0.8mm BGA and the other is much smaller.

 allwinner's SoC is 0.8mm BGA.

 l.