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)
AMD 214.10-0.6%3:59 PM EST
 Public ReplyPrvt ReplyMark as Last ReadFilePrevious 10Next 10PreviousNext  
To: Yousef who wrote (51716)8/20/2001 7:09:27 PM
From: fyodor_Read Replies (2) of 275872
 
Yousef: I have drawn the conclusion that Intel rates their chip to operate at a different die/junction temperature (~80C for INTC versus 95C for AMD) ... Is this correct, Mani?? If true, this would indicate a different level of required chip reliability between the two companies.

Actually, it looks more like it's the other way around: Intel has dropped its Tj(max) to keep the same level of chip reliability.

Check out the Slot PIII docs. They list the Tj(max) for PIIIs from 450MHz to the infamous 1113MHz. Since I don't have a link and don't know if Intel still provides the data sheet (but I assume they do), I'll provide the relevant list:
freq.   Tj(max)
450      90 
500      90 
533B     90 
533EB    82 
550      80 
550E     82 
600      85 
600B     85 
600E     82 
600EB    82 
650      82 
667      82
700      80 
733      80 
750      80 
800      80 
800EB    80 
850      80 
866      80 
933      75 
1000     60 
1000     70 
1000B    70 
1133     62
Judging from this, it looks like Intel had to tighten the temperature requirements every time they needed more speed. Pushing the envelope further than the process could handle, given the "old" temperature requirements, so things were tightened a bit. In the 1133MHz chips case, obviously not enough.

-fyo
Report TOU ViolationShare This Post
 Public ReplyPrvt ReplyMark as Last ReadFilePrevious 10Next 10PreviousNext  

HomeMailHotSubjectMarksPeopleMarksKeepersSettings
Terms Of UseContact UsCopyright/IP PolicyPrivacy PolicyAbout UsFAQAdvertise on SI
© 2025 Knight Sac Media.  Data provided by Twelve Data, Alpha Vantage, and CityFALCON News