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Politics : Formerly About Advanced Micro Devices -- Ignore unavailable to you. Want to Upgrade?


To: Shane Geary who wrote (62158)6/17/1999 3:53:00 PM
From: Elmer  Read Replies (1) | Respond to of 1575063
 
Re: "TSMC (the kings of manufacturability and stable processes) recently said that they purposely sited their Leff larger than Intel's to minimise leakage."

And why would punch through be such a problem?

EP



To: Shane Geary who wrote (62158)6/19/1999 12:17:00 PM
From: Yousef  Respond to of 1575063
 
Shane,

Re: " You're being a bit too black-and-white here Yousef. Smaller Leff in
itself is not enough to say whether one process is better than another."

Shane ... For a u-processor process, high drive currents at low operating
voltage along with an interconnect that provides low R & C is what is necessary
to achieve the highest speed performance. Off state - subthreshold leakage
has not been that much of a problem for CPU designers (<3na/um) ... For other
ASIC designs, the leakage currents are a very "big deal". This is why
TSMC and others "worry" about this parameter.

Make It So,
Yousef