SI
SI
discoversearch

We've detected that you're using an ad content blocking browser plug-in or feature. Ads provide a critical source of revenue to the continued operation of Silicon Investor.  We ask that you disable ad blocking while on Silicon Investor in the best interests of our community.  If you are not using an ad blocker but are still receiving this message, make sure your browser's tracking protection is set to the 'standard' level.
Technology Stocks : Advanced Micro Devices - Moderated (AMD) -- Ignore unavailable to you. Want to Upgrade?


To: Elmer Phud who wrote (148651)1/21/2005 1:48:54 PM
From: RinkRead Replies (1) | Respond to of 275872
 
Elmer, do you know if Smithfield is single or dual die?

Regards,

Rink



To: Elmer Phud who wrote (148651)1/21/2005 1:58:57 PM
From: burn2learnRead Replies (2) | Respond to of 275872
 
Elmer just a few items to screw with you numbers. I'm thinking along what Doug has been posting recently.

Assume these variables
Btq high bin P4 parts suffer 30-40% Le loss. these are the die left over after defetcts considered and are testable. So a high bin P4 part = 256 DPW from your numbers
428*0.6=256 GDO or ~$9.3. of these parts only some fraction make top bin (maybe 10-20% when times are good).

Smithfield, if it is two die connected then
since not BTQ they have LE (litho expose) loss ~1-2% of testable die.
428*098 =419GPW at sort

the real question is how do you connect the die. Can you match separate die on the wafer in such case

(419/2)/2400 =$11.4 of course some die wont match and would be should as 3.0 gig parts.

but if die have to be next to each other on the wafer you still get $11.4 but a mix of single core and dual core parts because not all die have functional die next them. On top of that I'm sure the die would have to be matched at some performance level to be a DC product.

I think Intel has a better chance of getting more DC parts than top bin SC parts thus cost less to consumer. fatter sweet spot



To: Elmer Phud who wrote (148651)1/21/2005 2:01:02 PM
From: AK2004Read Replies (1) | Respond to of 275872
 
Elmer

re: So Perhaps my $10 estimate was pretty close, no?

only if that $5.60 includes all of the fixed costs like fab, equipment, development, etc depreciation

Does it?

-AK

ps fixed costs should be significantly higher than variable, no?



To: Elmer Phud who wrote (148651)1/21/2005 11:01:12 PM
From: etchmeisterRead Replies (3) | Respond to of 275872
 
I've run some numbers and here's what I get.
Hi ephud
That's exactly what I was looking for -
my question
156 x 2 = 312 (assuming size = 2x)
312 GDPW versus 428 GDPW; is the difference strictly due because larger die causes more silicon real estate loss at the edge?
(BTW: I must be the only fool on Silicon Investor that owns Micron because of their 6F2 technology :O(
Did you calculate on your own or do you have S/W ?
Since I'm looking from Capex point of view my two cents input is that they will need more equipment to realize similar output (SC versus DC); also additional layer of copper

Please let me know (I'm very interested in this die size study)

TIA